Acanthephyra quadrispinosa Kemp, 1939

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 : 410

Acanthephyra quadrispinosa Kemp, 1939

( Figs. 9 A–B, 10 , 39 E)

Acanthephyra batei Stebbing, 1905: 107 , pl. 24B.

Acanthephyra quadrispinosa Kemp, 1939: 576 .— Barnard 1950: 668, fig. 124g. — Kensley 1968: 311; 1972: 40 (in key), fig. 18c, d; 1981a: 57; 1981b: 21; 1987: 284.— Chace 1986: 26, figs 3h, 4t, 7g, 10c, 14.—Crosnier 1987: 697.— Kensley et al. 1987: 284.— Cardoso & Young 2005: 21 , figs. 14–18.— Judkins 2014: 304.

Material examined. 4 M and 5 F, Pernambuco, Abracos 1 ST# 51/ Leg. 1, Midwater Tow, 800 m, 08° 56,49’ S / 034° 29,05’ W, 19 October 2015, MOUFPE: 15.589.

Diagnosis: Carapace with rostrum overreaching scaphocerite, dorsal margin with 3–7 teeth, ventral margin between 3–4 teeth; antennal spine present; branchiostegal spine present with distinct carina extending twice length of spine. Abdomen dorsally carinate on all somites, except on somite 1; somites 3 to 6 with posteromesial tooth, the one of somite 3 distinctly strong. Telson sulcate on dorsal midline, with four pairs of dorsolateral spines (modified from Cardoso & Young 2005).

Distribution: Western Atlantic: Brazil (off Pernambuco, Espírito Santo and Rio de Janeiro), off Uruguay. Indo-Pacific Oceans: from South Africa, Madagascar, Arabian Sea, Sumatra, Indonesian, Australia, Papua New Guinea, Japan, Canada ( Barnard 1950; Chace 1986; Cardoso & Young 2005; Judkins 2014) ( Fig. 10 ).

Bathymetric distribution: 250–3716 m depth ( Barnard 1950; Chace 1986; Crosnier 1987; Cardoso & Young 2005; Burghart et al. 2007; 2017), herein this species was found in Rocas Atoll at 800 m.

Remarks: The specimens analyzed herein agrees with the description of Cardoso & Young (2005) based on material collected in Southeast of Brazil (Campos Basin), presenting the carapace without dorsal carina, abdominal somites 2–6 dorsally carinate, in the dorsal tooth present in abdominal somite 3, and the four pairs of dorsolateral spines on telson ( Fig. 9B ), but our specimens showed a little difference in branchiostegal spine, with a distinct carina extending a little more than 1.5x the length of spine vs. 2x as observed by Cardoso & Young (2005) ( Fig. 9A ). The closest species of A. quadrispinosa is A. kingsleyi, with both occurring in Atlantic Ocean. Acanthephyra quadrispinosa presents the abdominal somites 4 and 5 with dorsal tooth and have 4 dorsolateral spines on the tel- son, while A. kingsleyi has abdominal somites 4 and 5 lacking dorsal tooth and 6 dorsolateral spines on the telson (Cardoso & Young 2005). Acanthephyra quadrispinosa occurs in the Atlantic, Indian and Pacific Oceans (Fig. 10) in bathypelagic zones (Cardoso & Young 2005). In the South Atlantic, A. quadrispinosa was recorded by Kemp (1939) from African coast and posteriorly by Cardoso & Young (2005) from Brazilian waters in states of Espírito Santo and Rio de Janeiro. In this paper A. quadrispinosa is reported for the first time in State of Pernambuco, located in Northeastern Brazil.

Figures

FIGURE 9. Acanthephyra quadrispinosa Kemp, 1939. A. Male, lateral view. B. Telson, dorsal view (MOUFPE: 15.589). Scale bar = 1 cm.

FIGURE 10. Global geographic distribution of Acanthephyra quadrispinosa Kemp, 1939. Black circles = previous records; star = new record.

FIGURE 39. Deep-sea shrimps of the family Acanthephyridae Spence Bate, 1888 being: A. Acanthephyra acutifrons Spence Bate, 1888 (MOUFPE: 18.424). B. Acanthephyra curtirostris Wood-Mason & Alcock, 1891 (MUFPE: 18.471). C. Acanthephyra eximia Smith, 1884 (MOUFPE: 15.685). D. Acanthephyra kingsleyi Spence Bate, 1888 (MOUFPE: 18.461). E. Acanthephyra quadrispinosa Kemp, 1939 (MOUFPE: 15.589). F. Acanthephyra stylorostratis (Spence Bate, 1888) (MOUFPE: 15.671), with all material collected in Northwestern Brazil.