Salmoneus teres Manning & Chace 1990

• Main Author: Anker, Arthur
• Format: Text
• Language: unknown
• Published: Zenodo 2007
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Alpheidae; Salmoneus; Salmoneus teres; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.5281/zenodo.6245979; https://zenodo.org/record/6245979

Salmoneus teres Manning & Chace, 1990 Fig. 5, 8 a Salmoneus teres Manning & Chace, 1990: 20. Material examined : 1 non-ovig. specimen (male?), MNHN-Na 13712, Guadeloupe, Grand Cul de Sac, under rock on sand-silt bottom, depth about 2 m, hand net, coll. F. Fasquel, Nov 1999. Description : See Manning & Chace (1990). Colour : Whitish, semitransparent, brownish inner organs partly visible through carapace (Fig. 8 a). Size : The Guadeloupe specimen has CL 4.4 mm, TL 13.1 mm, CL of the Ascension holotype was 2.8 mm (Manning & Chace, 1990). Ecology : The single specimen was found under a rock on the silt-sand bottom, at a depth of about 2 m. Type locality : Ascension Island. Distribution : Central Atlantic: Ascension Island (Manning & Chace, 1990). Western Atlantic: Caribbean Sea: French Antilles: Guadeloupe (present study). Remarks : The present specimen agrees in most features with the holotype of S. teres from Ascension Island (Manning & Chace, 1990), except for a few minor differences. According to Manning & Chace (1990), the rostrum is “without indication of median rostral carina”, while in the present specimen there is a very slight carina extending to the level of corneas (Fig. 5 a). The lateral margins of the rostrum are somewhat more convex in the holotype (cf. Manning & Chace, 1990: fig. 10 b) compared to those of the Guadeloupe specimen (Fig. 5 a). The carapace of the Guadeloupe specimen is distinctly pitted (Fig. 5 a), however, these pits are also present in the type (R. Lemaitre, pers. comm.), although they were not illustrated and their presence was not mentioned by Manning & Chace (1990). The finding of S. teres in Guadeloupe eliminates this species from the list of endemic decapods of Ascension Island (Manning & Chace, 1990), and represents a considerable range extension of S. teres from the central Atlantic (Ascension) to the western Atlantic (eastern Caribbean). Manning & Chace (1990) analyzed the faunal composition of the Ascension decapods and found that of 74 species known from this isolated central Atlantic island, 41 species (55 %) also occur in the western Atlantic. Therefore, more taxa that are currently believed to be endemic to Ascension may eventually be found in the western Atlantic (see also under S. setosus ). : Published as part of Anker, Arthur, 2007, New species and records of alpheid shrimps, genera Salmoneus Holthuis and Parabetaeus Coutière, from the tropical western Atlantic (Decapoda, Caridea), pp. 21-39 in Zootaxa 1653 on page 32, DOI: 10.5281/zenodo.179791 : {"references": ["Manning, R. B. & Chace, F. A. Jr. (1990) Decapod and stomatopod Crustacea from Ascension Island, South Atlantic Ocean. Smithsonian Contributions to Zoology, 503, i - v, 1 - 91."]}