Laboratorio de Crustáceos; Facultad de Estudios Superiores Iztacala; Universidad Nacional Autónoma de México; Avenida de Los Barrios 1; Los Reyes Iztacala; Tlalnepantla; Estado de México; C.P. 54090; México.
Departamento de Recursos del Mar; Cinvestav; Carretera antigua a Progreso; km 6; Apdo. Postal 73-Cordemex; 97310 Mérida; Yucatán; México.
Zootaxa. 2023 Apr 13;5264(2):284-292. doi: 10.11646/zootaxa.5264.2.8.
A new species of pardaliscid amphipod is described and illustrated from a single male specimen collected from bathyal sediments (2125 m depth) in the southern Gulf of Mexico. The new species is morphologically closest to Pardaliscoides fictotelson Barnard, 1966, previously documented from Southern California, at 218 m depth. The new pardaliscid differs from other species in the genus in having antenna 1 with a 10-articulate accessory flagellum; maxilliped palp very long; pereopods 5-7 elongate, slender; basis pereopod 7 expanded; telson with a short U-shaped cleft and pointed lobes; uropods 1-2 outer ramus curved, peduncle flat, longer than rami; uropod 3 rami flat, fleshy-lined, with marginal distal short robust setae. An identification key for all known species in the Pardaliscoides genus is also provided. The new species increase the number of Pardaliscoides species documented to six worldwide.
一种新的 Pardaliscid 端足类动物被描述并图示，其标本来自墨西哥湾南部的深海沉积物（2125 米深度），仅采集到一只雄性个体。该新种在形态上与以前在加利福尼亚南部 218 米深处记录到的 Pardaliscoides fictotelson Barnard, 1966 最为接近。与属中的其他物种相比，新的端足类动物的第 1 触角具有 10 节组成的附加鞭状触角；大颚触须非常长；第 5-7 对步足拉长，纤细；第 7 对步足基节扩张；尾节具短 U 形裂缝和尖的裂片；第 1-2 对尾肢外肢节弯曲，短而平，比肢节长；第 3 对尾肢肢节扁平，肉质衬里，边缘有短而粗壮的刚毛。还提供了一个鉴定所有已知 Pardaliscoides 属种的关键。该新种使全球记录的 Pardaliscoides 物种数量增加到六种。
