Oplophorus gracilirostris A. Milne-Edwards, 1881

Alves-Júnior, Flavio De Almeida, Silva, Elinai Dos Santos, Araújo, Marina De Sá Leitão Câmara De, Cardoso, Irene, Bertrand, Arnaud & Souza-Filho, Jesser F., 2019, Taxonomy of deep-sea shrimps of the Superfamily Oplophoroidea Dana 1852 (Decapoda: Caridea) from Southwestern Atlantic, Zootaxa 4613 (3), pp. 401-442 : 428

publication ID

https://doi.org/10.11646/zootaxa.4613.3.1

publication LSID

lsid:zoobank.org:pub:99A88354-3C2D-4D5A-A1DB-658CAE100F4A

persistent identifier

https://treatment.plazi.org/id/03B86763-B173-FFFE-FF55-FC71A4F8D237

treatment provided by

Plazi

scientific name

Oplophorus gracilirostris A. Milne-Edwards, 1881
status

 

Oplophorus gracilirostris A. Milne-Edwards, 1881  

( Fig. 31 View FIGURE 31 A–B, 32 View FIGURE 32 , 40 View FIGURE 40 F)

Oplophorus longirostris Spence Bate, 1888: 765   , pl. 127, fig. 2.

Hoplophorus smithii Wood-Mason & Alcock, 1891: 194   .

Oplophorus gracilirostris A. Milne-Edwards, 1881: 6   .— de Man 1920: 48.— Chace 1947: 44, figs 4–7; 1986: 59, fig. 32a–e. — Vereshchaka 1990: 140.— Poupin 1998: 9.— Ramos-Porto et al. 2000: 77.— Cardoso & Young 2005: 52 View Cited Treatment , figs. 39–43.

Material examined. 1 F, Rio Grande do Norte, Potiguar Basin MT# 64-2   , Bottom trawl, m 416 m, 04° 36,24’ S / 036° 45,73’ W; 04° 36,52’ S / 036° 44,58’ W, 12 May 2011, MOUFPE GoogleMaps   : 15.673. 2 M and 1 F, Rocas Atoll, Abracos 1 ST# 14/ leg. 1, Midwater tow, 510 m, 03°58,97’ S / 034°03,37’ W, 0 6 October 2015, MOUFPE GoogleMaps   : 15.663. 1 F, Rocas Atoll, Abracos 1 ST# 22/ Leg. 1, Midwater tow, 57 m, 04°07,72’ S / 033°47,45’ W, 0 8 October 2015, MOUFPE GoogleMaps   : 15.595. 1 F, Rio Grande do Norte, Abracos 1 ST# 25/ Leg. 1, Midwater tow, 75 m 05°48,14’ S / 034°57,11’ W, 11 October 2015, MOUFPE GoogleMaps   : 15.576. 3 M and 2 F, Paraiba, Abracos 1 ST# 28/ Leg. 1, Midwater tow, 57 m 06° 37,30’ S / 034° 45,53’ W, 13 October 2015, MOUFPE GoogleMaps   : 15.668. 1 M, Pernambuco, Abracos 1 ST# 51/ Leg. 2, Midwater tow, 570 m, 08° 56,49’ S / 034° 29,05’ W, 19 October 2015, MOUFPE GoogleMaps   : 15.591.

Diagnosis: Carapace with rostrum overreaching scaphocerite, ventral margin with six teeth; antennal spine present; branchiostegal spine present, without distinct carina; with sharp tooth near posterior end of ventral margin; with posterior extensions of upper lateral rostral carina subparallel in dorsal aspect. Scaphocerite with 14 teeth on outer margin, without barb near apex of inner margin. Abdomen not dorsally carinate on somite 6; pleura of somite 1 with small tooth on ventral margin; somites 3–5 with posteromesial tooth, the one of somite 3 distinctly strong (modified by Cardoso & Young 2005).

Distribution: Western Atlantic: Gulf of Mexico, Bahamas, off Dominica, Lesser Antilles, Caribbean Sea, Brazil (Amapá, Pará, Ceará, Rio Grande do Norte, Rocas Atoll, Paraíba, Pernambuco and Bahia). Indo-Pacific Oceans: southeastern Africa, Indonesia, Philippines, southern Japan, Fiji Islands, Hawaii, French Polynesia, Seamounts Sala y Gòmez, Nazca ridge ( Chace 1986; Kensley 1987; Vereshchaka 1990; Cardoso & Young 2005) ( Fig. 32 View FIGURE 32 ).

Bathymetric distribution: 100–2400 m depth ( Chace 1986; Vereshchaka 1990; Ramos-Porto et al. 2000), herein this species was collected between 57–570 m, thus extending its bathymetric distribution from shallow waters.

Remarks: The material examined agrees with the description and figures of Chace (1947; 1986) and Cardoso & Young (2005). Two species of Oplophorus   are recorded from Brazilian waters: O. gracilirostris   and O. spinosus ( Brullé, 1839)   . These species differ from each other by (characters of O. spinosus   in parentheses): carapace with a posteroventral tooth (vs without a posteroventral tooth), scaphocerite without a barb on the distal inner margin (vs with a barb on the distal inner margin) and first abdominal somite with a ventral tooth (vs somite without ventral tooth or with reduced ventral tooth) (Cardoso & Young 2005). This species occurs in mesopelagic zones from In- dian, Pacific and Atlantic oceans (Chace 1986; Kensley 1987). From Brazilian waters, the species O. gracilirostris was recorded by Ramos-Porto et al. (2000) and Cardoso & Young (2005). This paper reports O. gracilirostris for the first time in an oceanic island (Rocas Atoll).

MOUFPE

Oceanographic Museum of the Federal University of Pernambuco

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Oplophoridae

Genus

Oplophorus

Loc

Oplophorus gracilirostris A. Milne-Edwards, 1881

Alves-Júnior, Flavio De Almeida, Silva, Elinai Dos Santos, Araújo, Marina De Sá Leitão Câmara De, Cardoso, Irene, Bertrand, Arnaud & Souza-Filho, Jesser F. 2019
2019
Loc

Hoplophorus smithii

Wood-Mason, J. & Alcock, A. 1891: 194
1891
Loc

Oplophorus longirostris

Spence Bate, C. S. 1888: 765
1888
Loc

Oplophorus gracilirostris A. Milne-Edwards, 1881 : 6

Cardoso, I. A. & Young, P. S. 2005: 52
Ramos-Porto, M. & Silva, K. C. A. & Viana, G. F. S. & Cintra, I. H. A. 2000: 77
Poupin, J. 1998: 9
Vereshchaka, A. L. 1990: 140
Chace, F. A. 1947: 44
de Man, J. G. 1920: 48
Milne-Edwards, A. 1881: 6
1881