402 



Gen. 1. Pardalisca, KiOyer, 1842. 



Body rather tumid, nearly cylindric in from, with broadly vaulted 

 back, and the 2 anterior segment.? of uro-some produced dor.sally. Cephalon 

 large and thick, obtusely truncated in front, with a very slight rostral pro- 

 jection above the bases of the superior antennae, lateral edges evenly curved, 

 and forming behind the insertion of the mandibles a narrowly rounded 

 deflexed lobe. The anterior pairs of coxal plates slightly increasing in size 

 to the 4th pair; 5th pair nearly as deep as the former, the 2 succeeding 

 pairs much smaller. Eyes distinct, placed near the anterior edges of the 

 cephalon, visual elements imperfectly developed. Antennae rather elongated, 

 the inferior ones longer than the superior, peduncle of the latter comparatively 

 short. Anterior lip lamellar and very unequally bilobed; posterior lip large, 

 with the inner lobes well defined, though rather small, the outer ones narrowly 

 produced behind, and far apart. Mandibles very strong, cutting part much 

 expanded, and divided, on the right mandible, into 4 coarse teeth; left mandible 

 with the teeth less distinctly defined, but having a rather large secondary 

 lamella; palp of moderate size and densely setous. First pair of maxillae 

 rather large, with the masticatory lobe considerably projecting, and armed 

 with a single row of strong spines, basal lobe small, unisetose, palp having 

 the terminal joint much expanded, and regularly denticulated on the distal 

 edge. Second pair of maxillae comparatively small, with both lobes very 

 narrow, and bearing long ciliated setse. Maxillipeds having the outer segment 

 of the basal part much prolonged and laminar, basal lobes rudimentary, 

 masticatory lobes broad, and densely edged with slender setae, palp of moderate 

 size, with the dactylus rather small. Gnathopoda not very strong, carpus 

 rather large and subfusiform, propodos narrow linear, dactylus of different 

 form in the various species. The 2 anterior pairs of pereiopoda comparatively 

 short, with the meral joint shorter than the carpal one, both compressed 

 laminar, and densely setiferous. The 3 posterior pairs much elongated, with 

 the dactylus comparatively short. The 2 anterior pairs of uropoda densely 

 edged with spines, and with the rami not very unequal ; last pair considerably 

 projecting beyond the others, rami subequal, foliaceous, and edged interiorly 

 with ciliated setae. Telson armed on each side with a number of slender 

 spines, cleft very deep, terminal lobes slightly diverging, and more or less 

 distinctly indented at the tip. 



liemarlcs. — The present genus, the type of the family, was established 

 by Kroyer in the year 1842, to include the 1st of the species described in 

 the sequel. It may be distinguished from the other genera of the present 

 family, by the smooth cylindrical body, the large and, as it were, swollen 



