Mesopenaeus tropicalis ( Bouvier, 1905 )

Alves-Júnior, Flavio De Almeida, Araújo, Marina De Sá Leitão Câmara De & Souza-Filho, Jesser F., 2017, New records of deep-sea shrimps of family Solenoceridae Wood-Mason & Alcock, 1891 (Crustacea: Decapoda: Dendrobranchiata) from Southwestern Atlantic, Zootaxa 4254 (4), pp. 473-484 : 481-482

Mesopenaeus tropicalis ( Bouvier, 1905)

( Fig. 7 A–B)

Parartemesia tropicalis Bouvier,1905:748 .

Haliporus tropicalis . Bouvier, 1906:4; 1908:80.—A. Milne Edwards & Bouvier 1909:217, fig. 45–54, pI. 3, fig. 1–19. Hymenopenaeus tropicalis . Burkenroad, 1936:103.— Springer & Bullis 1956:8.

Solenocera weymouthi Lindner & Anderson 1941:181 , fig. 1a–e.— Anderson & Lindner 1945:286. Mesopenaeus tropicalis Pérez Farfante, 1977: 333 , fig. 56.—Pérez Farfante & Kensley 1997.— Ramos-Porto et al. 2000: 76.

Diagnosis. Body robust, rostrum short, epigastric tooth and first rostral tooth separated by about same distance as that between first and second rostral tooth. Orbital, postorbital and antennal spines present, rostral plus epigastric teeth 7–10, pterygostomian and branchiostegal spines absent. Ventral antennular flagellum conspicuously depressed. Carapace with rather long densely set setae on rostrum above adrostral carina. Abdomen with sharp, high, middorsal carina from third to sixth somites. Telson with median sulcus deep anteriorly and penetrated posteriorly by longitudinal elevation merging with convex terminal portion (Modified from Pérez Farfante 1977).

Geographic distribution. ( Fig. 8 ) Western Atlantic: United States (North and South Carolina's, Georgia and Florida), Gulf of Mexico, Bahamas, Caribbean Sea, Antilhas, Barbados, Dominican Republic, Nicaragua, Panama, Venezuela and Brazil (Amapá; Pará, Maranhão, Ceará, Rio Grande do Norte, Espírito Santo, Rio de Janeiro, São Paulo and Rio Grande do Sul ( Pérez Farfante 1977; Holthuis 1980; Ramos-Porto et al. 2000).

Bathymetric distribution. The specimens of M. tropicalis have been collected in Potiguar Basin between depths of 150–180 m; their occurrence is usually between 30–915 m ( Pérez Farfante 1977; Huff & Cobb 1979; Holthuis 1980; Ramos-Porto et al. 2000).

Remarks. The specimens analyzed herein do not differ from the description of Pérez Farfante (1977). The species M. tropicalis was observed for the first time in Brazilian waters from states of Amapá and Maranhão by Pérez Farfante (1977), based on material collected by Expedition Oregon, R / V Prof. W. Besnard from state of São Paulo, and R/V Calypso recorded by D'incao (1995). Posteriorly, specimens collected by Ramos-Porto et al. (2000) under the framework Revizee / Norte expanded the geographic distribution of this species from Northern region of Brazil, in isobaths of 100 m. The M. tropicalis have a restrict distribution to western Atlantic . Thus, this paper fills gaps of distribution especially along the Brazilian coast, with the occurrence of M. tropicalis in Potiguar Basin , northeastern Brazil.

Figures

FIGURE 7. Mesopenaeus tropicalis (Bouvier, 1905). A. Female lateral view. B. Detail of anterior margin of the carapace: 1. Postorbital spine, 2. Antennal spine, 3. Hepatic spine (MOUFPE: 16795). Scale bar = 1 cm.

FIGURE 8. Geographic distribution Mesopenaeus tropicalis (Bouvier, 1905) in the Atlantic Ocean. Black circles = previous records; star = new record.