THE CRUSTACEA OF NEW JERSE\'. 329 



Description. — Rostrum of moderate breadth, rather long", 

 reaches httle beyond end of antennal scale and curved upward 

 considerably. Rostrum ciliated and serrated above throughout 

 to tip, with nine teeth, and posterior tooth little further re- 

 moved from second than second from third, and placed at front 

 third of carapace. Third rostral tooth directly above base of 

 eye-peduncles. End of rostrum acute of sometimes minutely 

 bifid. Beneath, rostrum armed with four teeth, and densely 

 ciliated. Both pairs of antennae as in Palcemonetes vulgaris. 

 Feet of second pair long, reach well beyond end of rostrum. 

 End of carpus falls just short of end of antennal scale. Hand 

 much stouter than in Pahcinonctcs vulgaris, and fingers a little 

 shorter than palm. First pair of feet reach scarcely beyond 

 end of carpus of second pair. (Stimpson.) 



Remarks. — Known in our limits from Stimpson's record for 

 Great Egg' Harbor, where it was secured by Prof. S. F. Baird. 

 Stimpson says it is of the same size and nearly allied with 

 Falccuionetes vulgaris, but easily distinguished by its recurved 

 rostrum, and larger second pair of feet. Stimpson had it with 

 a range from this State southward to South Carolina, and in 

 depths from two to seven fathoms. 



Fafnily HIPPOLYTID^. 



Rostrum of important size. Eyes not covered by carapace. 

 Mandible with or without a cutting-edge and palp. First pair of 

 trunk-legs with moderate sized chelae. Second pair chelate, with 

 wrist or fifth Joint sometimes much and sometimes little suh- 

 divided. 



Genera about a dozen or more. 



Genus VI RBI US Stimpson. 



Virbius Stimpson, Proc. Acad. Nat. Sci. Phila., i860, p. 34. Type Hip- 

 polyte acuminata Dana, fourth and last species, designated liy Kingsley, 

 Proc. Acad. Nat. Sci. Phila., 1879, p. 421. 



Caradina Bate, Proc. Zool. Soc. London, 1863, p. 499. Type Caradina 

 truncifrons Bate, first species. 



