CRUSTACKA XORTII PACIFIC EXI'LORIXC !■ X I'EDITIOX 229 



alily developed. Feet naked or nearly so. Chelipeds shorter than 

 the ambulator}- feet ; the right one but little larger than the left ; 

 hand in both with three sharp, denticulated longitudinal keels or 

 crests, two marginal, and one median one continued on the immova- 

 ble finger ; carpus slightly pilose, flattened or obsoletely grooved 

 above, with two slight crenated keels. Ambulatory feet very slen- 

 der, naked; dactyli not contorted, and much Ujnger than the penult 

 joint. Colors: Body dark brownish in front, paler posteriorly; feet 

 transversely banded with reddish and olive ; chelipeds white. Gen- 

 eral length of the animal, half an inch; length of the carapax, o.ii ; 

 breadth of the front, 0.07; length of the right cheliped, 0.17 inch. 

 Dredged in five fathoms, black sand, in Kagosima I'ay, Japan. 



350. EUPAGURUS ACANTHOLEPIS ' Stimpson 



JSi-ifdiiiinis ticaiilliolcl^is Stimpson, Proc. Acad. Nat. Sci. I'hila., x, p. 251 

 [89], 1858. 



( )f this species we have only a small female specimen, nerhaps 

 young. The rostriform tooth is obsolete. The ophthalmic ring is 

 shielded above b\- a bifurcated bracteole. The eyes are slender, and 

 overreach the peduncles of the antenUcC, equaling in length the 

 breadth of the front, and curving outward ; cornea not dilated ; 

 ophthalmic scales small, bidentate or bifurcated; teeth or forks spini- 

 form. Flagellum of antenuce shorter than the feet. Acicle very 

 small. Feet slender, sparsely hirsute with long hairs. Chelipeds 

 slender, but much shorter than the ambulatory feet, and spinulose 

 above ; the right one largest ; carpus somewhat grooved above ; hands 

 a little depressed, and armed with a median and two marginal rows 

 of spines ; spines of the left cheliped longest. Dactyli of the ambu- 

 latory feet not contorted, but compressed, almost falciform ; un- 

 guicles slender. Fourth pair of feet not didactyle ; penult joint ex- 

 panded. On the right side of the abdomen near its base there is a 

 conical process, the skin of which at its ape.x is somewhat indurated 

 or cornetnis. Length of the animal, about one inch : length of cara- 

 pax, 0.21 ; breadth of front, O.12; length of eye. 0.12; length of right 

 cheli])ed, 0.35 ; of the right ambulatory foot, 0.53 inch. 



This species, as will lie seen from the description. i)resents some 

 peculiarities which nia\ require its subsetjuent removal from the 

 genus E 11 pa (^^ urns, although it has most of the more essential charac- 

 ters of that genus — the remoteness of the external maxillipeds, etc. 

 It is desirable that the male should be examinctl. 



Dredged in eight fathoms, mud, in Port Jackson, .\ustralia. 



Pagunis acaiitholcf'is ( Slimpsoii). 



