Sclerozoan and fouling sabellid worms (Annelida: Sabellidae) from Mexico with the establishment of two new species Tovar-Hernandez, Maria Ana Ana Garcia-Garza, Maria Elena de Leon-Gonzalez, Jesus Angel Biodiversity Data Journal 2020 8 57471 57471 82DF61FD-29A9-5227-A329-CC2C18422EC7 Tovar-Hernández, García-Garza & de León-González Tovar-Hernandez, Garcia-Garza & de Leon-Gonzalez 2020 Polychaeta Sabellidae Notaulax CoL Animalia Notaulax punctulata Sabellida 0 57471 Annelida species punctulata sp. n.  Materials   Type status: Holotype. Occurrence:catalogNumber: UANL 8142; recordedBy: Tulio Fabio Villalobos-Guerrero; sex: Female; lifeStage: Adult; reproductiveCondition: Ripe; Taxon:phylum: Annelida; class: Polychaeta; order: Sabellida Levinsen, 1883; family: Sabellidae Latreille, 1825; genus: Notaulax Tauber, 1879; Location:higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; country:  Mexico; countryCode: MX; stateProvince: Guerrero; municipality: Acapulco de Juarez; locality: Acapulco, Playa Hornitos; maximumDepthInMeters: 3 m; verbatimLatitude: 16°51 '26.41"N; verbatimLongitude: 99°53 '20.70"W; Identification:identifiedBy:  MariaAna Tovar-Hernandez; Event:samplingProtocol: By hand; eventDate: November 9, 2015; year: 2015; month: 11; day: 9; habitat: Sclerozoan of oyster attached to dock; Record Level:language: Spanish; institutionID: Universidad Autonomade Nuevo Leon; collectionID: Coleccion Poliquetologica, Universidad Autonomade Nuevo Leon; institutionCode: UANL; collectionCode: UANL, NL INV 0002-05-09  Type status: Paratype. Occurrence:catalogNumber: UANL 8143; recordedBy: Tulio Fabio Villalobos-Guerrero; individualCount: 1; sex: Male; lifeStage: Adult; reproductiveCondition: Ripe; Taxon:phylum: Annelida; class: Polychaeta; order: Sabellida; family: Sabellidae; genus: Notaulax; Location:higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; country:  Mexico; countryCode: MX; stateProvince: Guerrero; municipality: Acapulco de Juarez; locality: Acapulco, Playa Hornitos; maximumDepthInMeters: 3 m; verbatimLatitude: 16°51 '26.41"N; verbatimLongitude: 99°53 '20.70"W; Identification:identifiedBy:  MariaAna Tovar-Hernandez; Event:samplingProtocol: By hand; eventDate: November 9, 2015; year: 2015; month: 11; day: 9; habitat: Sclerozoan of oyster attached to dock; Record Level:language: Spanish; institutionID: Universidad Autonomade Nuevo Leon; collectionID: Coleccion Poliquetologica, Universidad Autonomade Nuevo Leon; institutionCode: UANL; collectionCode: UANL, NL INV 0002-05-09  Description Figures 10O-S, 16-18  Body shape and trunk size. Specimens flattened dorso-ventrally along the thorax, with pyriform abdomen in transversal section. Body length 15.4 mm (+13,2 mm), 1.5 mm (1.8 mm width).  Radiolar crown.Length 4.9 mm with 11 pairs of radioles. Radiolar lobes fused dorsally. Base of radiolar crown (basal lamina) short, as long as the length of three segments in lateral view, with dorsal and ventral flanges reduced (Fig. 16A-B and D). Radioles fused by a palmate membrane, about 1/2 of radiole length. Immediately above the membrane, there is a group of 24-26 black ocelli in a single row on both outer sides of the radioles, each band as long as the space of 13 pinnules (Fig. 17A and C-D). Radiolar flanges broad (Fig. 17A). Radiolar tips flattened, with broad flanges and long digitiform tips, occupying the space of 12 pinnules (Fig. 17E). Longest pinnules located at three quarters of the radiolar crown length. Radioles not sectioned to count the number of skeletal cells (see remarks to genus level). Dorsal lips as long as 1/4 of the radiolar crown length, erect, with mid-rib. Ventral lips short, ear-shaped. Dorsal and ventral pinnular appendages absent.   Peristomium.Anterior peristomial ring not exposed beyond collar (not visible). Posterior peristomial ring collar: dorsal collar margins fused to faecal groove (Fig. 16A). Lateral collar margins entire (Fig. 16D). Ventral collar margins incised forming rounded lappets (Fig. 16B, E). Ventral sacs and parallel lamellae absent.  Thorax.Chaetiger 1: with straight oblique rows of spine-like notochaetae (Fig. 16A). Spine-like chaetae from collar short, stouter, straight with blades sharply curved at the end (Fig. 10O and Fig. 18A). Ventral shield rectangular. Chaetigers 2-8: notopodia with superior group of short, spine-like chaetae and inferior groups of paleate chaetae without mucros (Fig. 10P and Fig. 18B). Neurochaetae avicular uncini, with handles as long as two times the length of crest, developed breast and several rows of minute, similarly-sized teeth occupying half of the crest (Fig. 10Q, andFig. 18C); neuropodial companion chaetae with rounded denticulate head and long, gently tapering asymmetrical membrane. Ventral shields broad, trapezoidal, laterally indented by neuropodial tori.  Abdomen.Segments 142 (83 abdominal segments). Interramal eyespots present (Fig. 16F-G and Fig. 17B). Abdominal ventral shields brown, rectangular, divided longitudinally by faecal groove. Anterior abdominal segments with paleate notochaetae, nearly rounded with mucros as long as palea width (Fig. 10S and Fig. 18B) and elongate, narrowly-hooded chaetae. Avicular abdominal uncini similar to thoracic ones, but handles shorter (as long as the crest length) and dentition covering 3/4 of the crest (Fig. 10R and Fig. 18F). Posterior abdominal segments with oval paleae with a mucro longer than three times the palea width and modified, elongate narrowly-hooded chaetae. Pygidium with two rounded black eyes.  Colour in live specimens: Unknown.  Colour in preserved specimens: Body pale with black interramal eyespots (Fig. 16G, andFig. 17B); collar and some areas of thorax purple (Fig. 16C).  Tubes: Organic, horny, translucent tubes.  Diagnosis Ventral margin of collar incised, forming rounded lappets. Long bands or radiolar ocelli (each band as long as the space of 13 pinnules), ocelli distributed in single rows of 24 ocelli each, bands located at the middle of the radiolar crown length. Interramal eyespots on abdominal segments.  Etymology The specific epithet  punctulatais the feminine of the Latin word punctulatus, meaning 'having small spots or punctures' or 'punctulate' and refers to the presence of abdominal interramal eyespots of the species.  Biology Holotype female with fully-developed oocytes in abdomen. Paratype male with sperm in abdomen, spermatozoa with spherical nucleus and rounded cap-like acrosome (Fig. 18F).  Taxon discussion Abdominal interramal eyespots have been only reported in  Notaulax tilosaula(Schmarda, 1861) ( Schmarda 1861) by  Tovar-Hernandezet al. (2017).  Notaulax punctulatasp. n. differs from  N. tilosaulaby the following features: the palmate membrane extends until a half of the radiolar crown length in  N. punctulatasp. n. (1/4 of the radiolar crown length in  N. tilosaula); radiolar tips are very long, occupying space of 10-12 pinnules width in  N. punctulatasp. n. (short tips in  N. tilosaula, occupying space of three pinnules width; band of ocelli in  N. punctulatasp. n. occupying space of 13 pinnules (25 pinnules in  N. tilosaula); ventral lappets rounded in  N. punctulatasp. n. (triangular in  N. tilosaula); lateral collar margin level in  N. punctulatasp. n. (V-shaped margin in  N. tilosaula) and mucro of posterior abdominal paleae as long as three times the width of paleae (mucro as long as five times the width of paleae in  N. tilosaula). Amongst the species of  Notaulaxfrom the Mexican Pacific,  N. punctulatasp. n. is unique by the presence of interramal eyespots on the abdominal segments (Table 2).  Notaulax californicaand  N. punctulatasp. n. have radiolar ocelli distributed in single rows, but in the former, there are a minor number (5-6), whereas in the second, there may be up to 24 ocelli per row.  Notaulax nigroincrustatasp. n. have ocelli distributed in oval groups of 26-30 ocelli each. 2015-11-9 By hand UANL, UANL, NL INV 0002 - 05 - 09 Tulio Fabio Villalobos-Guerrero Mexico 16.857336 Acapulco, Playa Hornitos 1 -99.889084 0 57471 UANL 8142 1 Holotype 2015-11-9 By hand UANL, UANL, NL INV 0002 - 05 - 09 Tulio Fabio Villalobos-Guerrero Mexico 16.857336 Acapulco, Playa Hornitos 1 -99.889084 0 57471 UANL 8143 1 1 Paratype