Apseudopsis daria Esquete & Tato, 2024

(SOSA), Senckenberg Ocean Species Alliance, Brandt, Angelika, Chen, Chong, Engel, Laura, Esquete, Patricia, Horton, Tammy, Jażdżewska, Anna M., Johannsen, Nele, Kaiser, Stefanie, Kihara, Terue C., Knauber, Henry, Kniesz, Katharina, Landschoff, Jannes, Lörz, Anne-Nina, Machado, Fabrizio M., Martínez-Muñoz, Carlos A., Riehl, Torben, Serpell-Stevens, Amanda, Sigwart, Julia D., Tandberg, Anne Helene S., Tato, Ramiro, Tsuda, Miwako, Vončina, Katarzyna, Watanabe, Hiromi K., Wenz, Christian & Williams, Jason D., 2024, Ocean Species Discoveries 1 – 12 — A primer for accelerating marine invertebrate taxonomy, Biodiversity Data Journal 12, pp. e 128431-e 128431 : e128431-

Apseudopsis daria Esquete & Tato sp. nov.

Materials

Type status: Holotype. Occurrence: catalogNumber: MNCN 20.04 / 20824 ; recordedBy: Ramiro Tato; individualCount: 1; sex: female; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: 970E2FE6-6D51-59C8-BA97-703D6AB80468; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 10 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 17 / 04 / 2012; fieldNumber: REG SEM EST 2 04 / 12; Record Level: institutionCode: MNCN; basisOfRecord: PreservedSpecimen

Type status: Paratype. Occurrence: catalogNumber: MNCN 20.04 / 20825 ; recordedBy: Ramiro Tato; individualCount: 1; sex: male; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: 6870CD58-BDC5-548C-9273-EDD96B097B6E; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 10 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 17 / 04 / 2012; fieldNumber: REG SEM EST 2 04 / 12; Record Level: institutionCode: MNCN; basisOfRecord: PreservedSpecimen

Type status: Paratype. Occurrence: catalogNumber: DBUA 0003243.04. a ; recordedBy: Ramiro Tato; individualCount: 1; sex: female; lifeStage: female; preparations: whole animal (ETOH); occurrenceID: 1C4DB208-D4FB-5883-8F2A-69D3068667E1; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.1 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 06 / 07 / 2011; fieldNumber: REG TRIM EST 2 07 / 11; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Paratype. Occurrence: catalogNumber: DBUA 0003243.04. b ; recordedBy: Ramiro Tato; individualCount: 1; sex: female; lifeStage: female; preparations: whole animal (ETOH); occurrenceID: E39B8B9A-C19E-50A5-B722-898E11CA2FC1; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.1 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 06 / 07 / 2011; fieldNumber: REG TRIM EST 2 07 / 11; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.01 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: B207E795-EE72-537F-A5A1-E15899F22EC9; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 16 / 04 / 2009; fieldNumber: REG SEM EST 2 04 / 09; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.02 ; recordedBy: Ramiro Tato; individualCount: 2; sex: female, neuter; lifeStage: adult, juvenile; preparations: whole animal (ETOH); occurrenceID: 9C9F3CF2-D400-59C0-9F5B-F2A526D4ADEB; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 6.7 m; locationRemarks: mud with shells; verbatimCoordinates: 43 ° 46.222 ' N 008 ° 26.798 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 14 / 04 / 2010; fieldNumber: REG SEM EST 8 04 / 10; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.03 ; recordedBy: Ramiro Tato; individualCount: 2; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: CDAAC32E-C8CF-5C34-978E-7A40838F088E; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 10.9 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 19 / 04 / 2011; fieldNumber: REG SEM EST 2 04 / 11; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.05 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: 914A9566-DB40-53D4-9BFE-6F293EE99155; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 5.2 m; locationRemarks: mud; verbatimCoordinates: 43 ° 27.7365 ' N, 008 ° 14.742 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 15 / 09 / 2011; fieldNumber: REG BIM Z 4 R 2 09 / 11; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.06 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: 7857A4C4-EE4B-51A1-A145-98A5172E392C; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.3 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 09 / 11 / 2011; fieldNumber: REG SEM EST 2 11 / 11; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.06 ; recordedBy: Ramiro Tato; individualCount: 3; sex: female, neuter; lifeStage: adult, juveniles; preparations: whole animal (ETOH); occurrenceID: 2A180C3E-9208-5E76-A7B2-7AD8092F94C5; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.3 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 09 / 11 / 2011; fieldNumber: REG SEM EST 2 11 / 11; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.07 ; recordedBy: Ramiro Tato; individualCount: 1; sex: male; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: 73F1A50F-7647-514D-A281-D47A6BB6B6D9; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.9 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 21 / 02 / 2012; fieldNumber: REG TRIM EST 2 02 / 12; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.08 ; recordedBy: Ramiro Tato; individualCount: 1; sex: male; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: DEE6C31D-834E-5945-93A3-FA3CCD9A5072; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 11.7 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 13 / 06 / 2012; fieldNumber: REG TRIM EST 2 06 / 12; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.09 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: 3943D67F-B029-5BC0-9737-DF8E7DD7625E; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 8.9 m; locationRemarks: mud; verbatimCoordinates: 43 ° 46.222 ' N 008 ° 26.798 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 13 / 06 / 2012; fieldNumber: REG TRIM EST 8 06 / 12; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.10 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: D00DE0F3-C652-592E-9B7F-DBAE07D1160A; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 10 m; locationRemarks: mud; verbatimCoordinates: 43 ° 27.6391 ' N, 008 ° 15.910 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 18 / 04 / 2013; fieldNumber: REG ANU EST 4 04 / 13; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.11 ; recordedBy: Ramiro Tato; individualCount: 1; sex: male; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: 134DDC84-0E79-57DC-A975-BD4F8CF18F91; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 29 / 04 / 2014; fieldNumber: REG SEM EST 2 04 / 14; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.12 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: 8E26621D-4197-5BC3-818E-84C6C2019ED4; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.4 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 10 / 07 / 2014; fieldNumber: REG TRIM EST 2 07 / 14; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.13 ; recordedBy: Ramiro Tato; individualCount: 1; sex: female; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: 38D0D35B-C42F-5CFE-B826-1471493C8018; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.1 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 14 / 10 / 2014; fieldNumber: REG SEM EST 2 10 / 14; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.14 ; recordedBy: Ramiro Tato; individualCount: 1; sex: male; lifeStage: adult; preparations: whole animal (ETOH); occurrenceID: F0FE13D4-3AB1-5BF5-9D23-0CCF83244C3E; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 6.3 m; locationRemarks: mud; verbatimCoordinates: 43 ° 27.7365 ' N, 008 ° 14.742 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 26 / 06 / 2015; fieldNumber: REG BIM Z 4 R 1 06 / 15; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: catalogNumber: DBUA 0003243.15 ; recordedBy: Ramiro Tato; individualCount: 1; sex: neuter; lifeStage: juvenile; preparations: whole animal (ETOH); occurrenceID: 09982A20-526F-5928-B1FD-B0CCD3D37C4F; Taxon: scientificName: Apseudopsis daria Esquete & Tato ; kingdom: Animalia; phylum: Arthropoda; class: Malacostraca; order: Tanaidacea ; family: Apseudidae ; genus: Apseudopsis ; specificEpithet: daria ; scientificNameAuthorship: Esquete & Tato; nomenclaturalCode: ICZN; Location: continent: Europe; waterBody: Ría de Ferrol; country: Spain; stateProvince: A Coruña; locality: inlet inside the Ría of Ferrol ; verbatimDepth: 12.3 m; locationRemarks: clayey mud; verbatimCoordinates: 43 ° 46.376 ' N 008 ° 24.085 ' W; Event: samplingProtocol: Van-Veen grab, sieved through 0.5 mm mesh; eventDate: 21 / 10 / 2016; fieldNumber: REG SEM EST 2 10 / 16; Record Level: institutionCode: DBUA; basisOfRecord: PreservedSpecimen

Description

Non-ovigerous female (Figs 44 , 45 , Fig. 46 A and Fig. 47 ). With general characters of Apseudopsis ( Guţu 2006, Esquete et al. 2012 a, Esquete et al. 2012 b, Esquete et al. 2019, Carvalho et al. 2019). Rostrum (Fig. 44 A) short, pointed, with rounded shoulders. Prn 1–6 (Fig. 44 A – C) with posterolateral spiniform apophyses, hyposphenia only present on Prn 6. A 1 (Fig. 44 E) inner flagellum with three art, outer flagellum with seven art. Mouthparts (Fig. 45 ) as in other Apseudopsis ; Md palp (Fig. 45 A) art 2 with two simple setae; Mxp palp (Fig. 45 I) art 1 with two inner distal short spines, endite (Fig. 45 J) with four coupling hooks. P 1 (Fig. 47 A) coxa (Fig. 44 B) projected anteriorly; merus without dorsodistal spines; propodus with six ventral spines. P 3 basis with dorsal proximal spiniform apophysis (Fig. 47 C). Plp 1 (Fig. 47 G) basis with four inner and four outer plumose setae; Plp 2, 3 and 4 with four inner and three outer plumose setae; Plp 5 with three inner and two outer plumose setae.

Male. With general characters for Apseudopsis and same diagnostic characters as female holotype. Ch (Fig. 46 B) carpus without apophyses, propodus without ventral projection, cutting edge with proximal semicircular apophysis, dactylus with invagination. Difference with female: Ch more robust (Fig. 46 B).

Diagnosis

Apseudopsis Norman, 1899 with short, pointed rostrum, six ventral spines on pereopod 1 propodus and all pereonites with posterolateral projections. The only species with a posterior projection proximally on the basis of pereopod 3 in the adults.

Etymology

This species of Apseudopsis was first found in Ria de Ferrol, in Galicia ( NW Spain). In Galician, “ da ría ” means “ from the ria ”. Noun in apposition.

Taxon discussion

Previous taxonomic studies revealed that spination and setation of most of the appendages vary intraspecifically according to the size and life stage of the individuals ( Esquete et al. 2012 a, Esquete et al. 2012 b) and, hence, are not reliable for identification; therefore, they have been excluded from the description, although they can be consulted in the figures. The characters that allow distinction between species of Apseudopsis , regardless of the life stage of the individuals, are: 1) the shape of the rostrum; 2) the presence and / or position of apophyses on pereonites; 3) the number of hyposphenia on adult females without marsupium; 4) the number of articles on the flagella of the antennula and 5) the number of spines on pereopod 1 propodus ( Esquete et al. 2012 b). Additional characters are unique for certain species and typically involve ornamentation on the male cheliped or cephalothorax ( Esquete et al. 2012 a, Esquete et al. 2016, Esquete et al. 2019, Carvalho et al. 2019).

Apseudopsis daria sp. nov. has a dorsal spiniform apophysis proximally on pereopod 3 (Fig. 47 C), which is a unique character in the genus. Only three other species of Apseudopsis have six spines on pereopod 1 propodus: A. arguinensis (Guţu, 2002) , A. hastifrons (Norman & Stebbing, 1886) and A. isochelatus Guţu, 2006 . Apseudopsis arguinensis differs in lacking the posterolateral apophysis on pereonite 1, having short setae on anterolateral corners of pereonites and a hyposphenium on pereonite 2; A. hastifrons has anterolateral apophyses on pereonites 3 to 6, hyposphenia on pereonites 2, 3, 5 and 6 and a proximal row of spinules on the basis of pereopod 5; and A. isochelatus has a long rostrum, no apophyses on pereonite 1, hyposphenia on pereonites 2 to 6, antennule outer flagellum with up to 9 articles and the cheliped in males is as slender as in females. This is the only species of the genus with a proximal spiniform apophysis on pereopod 3; however, this character is very subtle and might have been overlooked in the descriptions of its congeners.

Notes

Methods

Twenty-three specimens were retrieved from two inlets inside the Ría of Ferrol ( NW Iberian Peninsula). The bottoms of the ría are mostly sedimentary, composed of mud in the sheltered areas with different proportions of sand. The study sites range from 2 to 13 m in depth and experience an average value of temperature and salinity of 15 ° C and 35 ‰ throughout the year. The salinity values range between 33 and 36 ‰. The inlets are in the middle part of the ría with a small stream mouth in the O Baño inlet. The coordinates delimitating them are the following: Santa Lucía (8 ° 14.4570 ' W, 43 ° 27.8103 ' N; 8 ° 15.0513 ' W, 43 ° 27.8564 ' N; 8 ° 14.9853 ' W, 43 ° 27.6813 ' N; 8 ° 14.5612 ' W, 43 ° 27.6316 ' N) and O Baño (8 ° 15.7487 ' W, 43 ° 27.7495 ' N; 8 ° 16.1401 ' W, 43 ° 27.7661 ' N; 8 ° 16.2372 ' W, 43 ° 27.4804 ' N; 8 ° 16.0011 ' W, 43 ° 27.2739 ' N). Samples were obtained using a Van-Veen grab and sieved through 0.5 mm mesh. The faunal specimens were sorted and fixed in 5 % formaldehyde, rinsed with freshwater and then preserved in 70 % ethanol. Taxonomic treatment and terminology followed Błażewicz-Paszkowycz and Bamber (2007) and Esquete and Cunha (2017). The type material is deposited at the Museo Nacional de Ciencias Naturales, Madrid ( MNCN), while other material at the Biological Research Collection of the Biology Department of the Universidade de Aveiro ( DBUA).

Figures

Figure 44. Apseudopsis daria Esquete & Tato, sp. nov. Female paratype DBUA 0003243.13. A. Habitus, dorsal view; B. Pereonites 1 and 2, lateral view; C. Pereonites 4 and 5, lateral view; D. Pleonite 5, pleotelson and uropods; E. Antennula; F. Antenna. Scale bars: 1 mm (A – C), 0.5 mm (D), 0.2 mm (E, F).

Figure 45. Apseudopsis daria Esquete & Tato, sp. nov. Female paratype DBUA 0003243.04. a. A. Mandible palp; B. Left mandible pars incisiva; C. Right mandible pars incisiva; D. Pars molaris; E. Labium palp; F. Maxillula endites; G. Maxillula palp; H. Epignath; I. Maxilliped palp; J. Maxilliped endite. Scale bars: 0.1 mm (A – H), 0.2 mm (I, J).

Figure 46. Apseudopsis daria Esquete & Tato, sp. nov. A. Female paratype DBUA 0003243.04. b, cheliped; B. Male DBUA 0003243.14, cheliped. Scale bar: 0.5 mm.

Figure 47. Apseudopsis daria Esquete & Tato, sp. nov. Female paratype DBUA 0003243.04. b. A – F. Pereopods 1 to 6, respectively (exopodites of cheliped and pereopod 1 not illustrated); G. Pleopod 1. Scale bar: 0.5 mm.