Plesionika longicauda (Rathbun, 1901)

Olthof, Gabriël, Becking, Leontine E. & Fransen, Charles H. J. M., 2018, On a collection of deep-water shrimp (Crustacea, Decapoda) from the Dutch Caribbean, with the description of a new species of Pseudocoutierea, Zootaxa 4415 (3), pp. 533-548 : 536

Plesionika longicauda (Rathbun, 1901)

Pandalus longicauda Rathbun, 1901: 117 , fig. 24 [type locality Gulf of Mexico, 28°42’30”N 85°29’W, 88fms] Plesionika longicauda: Chan & Crosnier 1991: 425 , figs 4a, 5a–b, d, f, 38, 39; Cruz & Fransen 2004: 138; Fransen 2014b: 182–183.

Material examined. RMNH.CRUS.D.57267: 1 female (pocl. 6.7mm), 2 males (pocl. 8.6 and 7.3mm), Bonaire, 12°08'13"N, 068°17'09"W, depth 158 m, 31.v.2013, dive with submersible Curasub BON3 , collected by L.E. Becking and H .W.G. Meesters. RMNH.CRUS.D.57268: 2 males (pocl. 7.3 and 7.2mm), 2 females (pocl. 7.4 and 7.0mm), Curaçao, 12°05’03”N, 68°53’54”W, depth 159m, 31.iii.2014, dive with submersible Curasub, from a rocky substrate, collected by Cessa Rauch .

Distribution. Plesionika longicauda is known from the Western Atlantic: Gulf of Mexico, the Caribbean Sea to Suriname, but also from the Eastern Atlantic from south of Senegal to Angola. P. longicauda has a depth range of 55 to 500 meters ( Chan & Crosnier 1991; Cruz & Fransen 2004). The present specimens fall within that range both geographically and in depth.

Remarks. The present specimens agree well with the description by Chan & Crosnier (1991) in the following aspects: rostrum 1.7–2.1 times as long as carapace; 36 dorsal rostral teeth; 23 ventral rostral teeth, scaphocerite slightly shorter than carapace; 4 post-orbital rostral teeth; pleuron IV rounded and pleuron V sharp; no epipods on maxilliped 3 or pereiopods.