Glyphocrangon alispina Chace, 1939

Alves-Júnior, Flavio de Almeida & Souza-Filho, Marina de Sá Leitão Câmara de Araújo and Jesser F., 2017, New records and bathymetric distribution of deep-sea shrimps of the family Glyphocrangonidae (Decapoda: Caridea) from the Potiguar Basin, northeastern Brazil, Nauplius (e 2017002) 25, pp. 1-15 : 6-7

Glyphocrangon alispina Chace, 1939

( Fig. 3A, B , Tab. 2)

Glyphocrangon alispina Chace, 1939: 39 ; – Pequegnat, 1970: 105; – Holthuis, 1971: 347, fig. 15; – Chace, 1984: 9 (Key); – Ramos-Porto et al., 2003: 98; – Komai, 2004a, 33, fig. 1 c, d; – Coelho et al., 2006: 55; – Serejo et al., 2007:139; – Felder et al., 2009: 1061; – Vázquez-Bader and Gracia, 2013: 373 .

Material examined. 2 (F), Bpot-Talude #AR 75,

MOUFPE 15211. 4 (IN); 2 (M), 2 (F), Bpot-Talude

# MT 71-2, MOUFPE 15.166. 1 (M), Bpot-Talude # MT 72-2, MOUFPE 15161. 4 (IN); 2 (M), 2 (F), Bpot-Talude # MT 74, MOUFPE 15.163. 14 (IN); 6 (M), 2 (F),6 (OF), Bpot-Talude # MT 74-2, MOUFPE 15.186. 30 (IN); 17 (M), 9 (F), 4 (OF), Bpot-Talude # MT 75, MOUFPE 15.190. 9 (IN); 6 (M), 2 (F), 1 (OF), Bpot-Talude # MT 75-2, MOUFPE 15.182. 1 (OF), Bpot- Talude # MT 82, MOUFPE 15.193. 1 (OF), Bpot-Talude # MT 85, MOUFPE 15.187.

Distribution. Western Atlantic: USA (Florida), Gulf of Mexico (off Texas), northwestern Cuba (Matanzas Province, Santa Clara Province), off Nicaragua, Caribbean Sea ( Virgin Islands), Guyana, Brazil (Amapá, Ceará and Rio Grande do Norte – Potiguar Basin, Bahia) ( Holthuis, 1971; Komai, 2004a; this study).

Bathymetric distribution. In the state of Florida, G. alispina was found between depths of 548–1,865 m ( Holthuis, 1971), whilst in the southwest and southeast of the Gulf of Mexico, there are records between depths of 671, 9–1,144 m ( Vázquez-Bader and Gracia, 2013). It has been recorded off the Brazilian coast between 421–900 m depths ( Serejo et al., 2007). However, in this study, the species was found between depths of 908–2,094 m, thus extending its known bathymetric distribution.

Remarks. The specimens examined are in agreement with the original description of Chace (1939) and the subsequent redescription of Holthuis (1971). Holthuis (1971) mentioned that G. alispina is very similar to G. nobilis A. Milne-Edwards, 1881 . Further, Komai (2004a) showed some differences between the species, such as: the size of the eye being larger in G. alispina than in G. nobilis , and the fourth and fifth pereopods more elongate in G. alispina than in G. nobilis . The material examined herein fits well with these states of characters.

Glyphocrangon alispina is restricted to the western Atlantic, ranging from the Gulf of Mexico to Brazil ( Holthuis, 1971; Ramos-Porto et al., 2003; Komai, 2004a; Serejo et al., 2007; Vázquez-Bader and Gracia, 2013). Glyphocrangon alispina has been recorded on the Brazilian coast as far south as Bahia and the states of Espírito Santo and Rio de Janeiro (Campos Basin) ( Komai, 2004a; Cardoso and Serejo, 2007; Serejo et al., 2007). Thus, the present record is the first from Potiguar basin.

Females were more abundant and larger in size when compared to males (see Tab.2).

Figures

Figure 3. Glyphocrangon alispina Chace, 1939, dorsal (A) and lateral (B) views, male (TL-68.5 mm; Bpot-Talude MT# 75-2; MOUFPE 15.182), northeastern Brazil.