526 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxv. 



and armed with small rounded teeth. First two perseopods slender, 

 the first more so than the second, with the dactyl about half the length 

 of the propodus; dactyl of the second pair about two-thirds the 

 length of the propodus; stouter and more curved than in the first. 

 Last three pera?opods with the merus not widely expanded and only 

 moderately produced downward at the lower angle; dactyls half the 

 length of the propodi. Ramus of third uropods slightly longer than 

 the peduncle, the second joint slightly larger than the first. Telson 

 oval, obtuse. 



Female. — The female has the palm of the hand of the second 

 gnathopods much more regular than in the male; there is a tooth 

 and a pair of spines at the distal end of the palm, a smaller tooth near 

 the middle, with some irregular teeth between it and the articulation 

 of the dactyl ; several small rounded teeth between the middle of the 

 palm and the distal end. The same features occur as in the hand of 

 the male, but they are much less pronounced. 



Length. — mm. 



Locality. — Station 4516, Monterey Bay, 718-756 fathoms. 



Type.— Cat. No. 38550, U.S.N.M. 



Family PARDALISCID^. 



NICIPPE TUMIDA Bruzelius. 



A single female specimen from Station 1549, Monterey Bay, 56-57 

 fathoms. 



Family LILJEBORGIIDiE. 



LILJEBORGIA BREVICORNIS (Bruzelius). 



A single specimen from Station 4430, of Santa Cruz Island. 197- 

 281 fathoms. 



Family CALLIOPIIDiE. 



Genus GRACILIPES/' new. 



Antennae slender, elongated, with elongated peduncles, the first 

 pair devoid of an accessory flagellum. Upper lip rounded, not 

 bilobed. Mandibles with well-developed molar, dentate cutting- 

 edge, and three-jointed palp. First maxillae normal with rather 

 slender two- jointed palp. Second maxillae with oblong subequal 

 lobes. Maxillipeds with enormously developed palp; outer plate 

 devoid of marginal spines, and reaching but little beyond the first 

 joint of the palp. Side plates very small; gnathopods similar, nearly 

 equal in size, with large elongated hands, the palms of which include 

 the larger part of the posterior margin. First two pairs of peraeo- 



" From the Latin words gracilis, slender, and pes, foot. 



