Alpheus lentiginosus Anker & Nizinski, 2011, n. sp.

• Main Authors: Anker, Arthur, Nizinski, Martha
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Alpheidae; Alpheus; Alpheus lentiginosus; Lophelia pertusa; North Atlantic
• Online Access: https://doi.org/10.5281/zenodo.6194817; http://treatment.plazi.org/id/A55387C3FF909C1DFF0CFEE329355844

Alpheus lentiginosus n. sp. (Figs. 1–3) Type material. Holotype : male (CL 7.9 mm), USNM 1145505, North Atlantic Ocean, Gulf of Mexico, 188.8 km south of Louisiana, expedition USGS DISCOVRE GOM, cruise JSLII-09- GOM, vessel Seward Johnson – DSR/V Johnson Sea Link II, Sta. JSL 3726, 28°11’41”N 89°47’59”W (28.1947250, -89.7999167), Lease Block MC751, Bucket 1, depth 434–438 m, patch reef on soft bottom, base of Lophelia pertusa , S.W. Ross et al. , 19 September 2009. Paratype : female (CL 10.1 mm), USNM 1145818, North Atlantic Ocean, Gulf of Mexico, 261.82 km south of Louisiana, expedition USGS-GOM-Lophelia I, cruise USGS-GOM, vessel Seward Johnson – DSR/V Johnson Sea Link I, Sta. JSL 4745, 29°05’53”N 88°23’06”W (29.0979533, -88.3849800), Lease Block VK906/862, Bucket 11, depth 336 m, K. Sulak et al. , 30 July 2004. Description. Body moderately slender, laterally not compressed. Carapace glabrous, without marked sculpture; frontal margin with well-developed rostrum and orbital teeth; rostrum subtriangular, distally acute, longer than as wide, without setae; tip not reaching half-length of first article of antennular peduncle; rostral carina not distinct; orbital teeth in marginal position, narrow, slightly directed mesially, distally acute, shorter than rostrum; margin between orbital teeth and rostrum almost straight, transversely oblique; orbital hoods moderately swollen, complete, enclosing eyes from all sides (Fig. 1 a, b); orbito-rostral process simple. Pterygostomial angle rounded, not protruding anteriorly (Fig. 1 b); cardiac notch deep. Abdominal somites with posteroventral margins broadly rounded to somewhat angular; sixth somite without articulated flap, distodorsal margin bluntly projecting on each side of telson. Telson subrectangular, tapering posteriorly, more than twice as long as wide at base; lateral margins slightly and broadly convex; dorsal surface with two pairs of strong spiniform setae inserted far from lateral margin, first pair anterior to half-length of telson, second pair between 2/3 and ...