502 
CHELURIIDiE, 
AMP HIP OB A. 
DOM1COLA. 
CHELURIDJ1 . 
Genus— CHELURA. 
Chehira. Philippi in Wiegmann’s Archiv. 1839, and Ann. Nat. Hist 
iv. pi. iii. fig. 5. Allman, Ann. Nat. Hist. xix. p. 361. 
White, Cat. Crust, p. 56. Pop. Hist. Brit. Crust, p. 202 
pi. xi. fig. 2. GIosse, Mar. Zool. i. p. 138. Spence Bate, 
Ann. Nat. Hist. 2 ser. vol. xix. p. 149. Cat. Amph. Brit. 
Mus. p. 285. 
Nemertes. White, Cat. Crust. Brit. Mus. 1847. 
Generic character. Superior antennae short, having a multi- 
articulate flagellum and a secondary appendage. Inferior 
antennae longer than the superior; very robust; flagellum 
uniarticulate. Mandibles having an appendage. Third sia- 
gonopodos unguiculate. Gnathopoda chelate, subequal. Perei- 
opoda short, subequal. Ante- and penultimate pairs of 
pleopoda biramous, and closely associated ; ultimate pair 
unibranched. Telson single. 
In this genus the eyes are round. The superior 
antennae are shorter than the inferior ; they terminate 
in a multi-articulate flagellum, and bear a secondary 
appendage. The inferior antennae are strong and have 
a uni-articulate flagellum of great size and strength. 
The mandibles are furnished with a three-jointed ap- 
pendage. The maxillipedes terminate in a sharp finger. 
The first two pairs of legs have chelate hands. The 
coxae are short ; the legs are also short and strong. The 
ante- and penultimate pairs of caudal appendages are 
biramous, and closely associated in their position ; the 
ultimate pair are single-branched, and the telson is single 
and squamiform. 
This genus was first described by Philippi from speci- 
mens which he procured from the dockyards of Trieste. 
