278 REPORT OF NEW JERSEY STATE MUSEUM. 



thorax, and segments long as thoracic. Abdomen length nearly 

 half that of entire body. Sixth or terminal abdominal segment 

 long and rounded behind. Uropoda longer than terminal seg- 

 ment, outer branch longer and narrower than inner, which latter 

 rounded behind. Inner branch broad behind and obliquely trun- 

 cate. Uropoda and terminal abdominal segment fringed with 

 hairs. All legs prehensile, end in long narrow curved dactyls. 

 Propodus with five and carpus with two spines, in all the legs. In 

 alcohol color pale yellowish-brown, dotted with dusky or blackish 

 over each median portion of segments of upper surface. Eyes 

 black. Reaches 13 mm. in length. 



Remarks. — This species is found along the Atlantic coast of 

 North America from Connecticut southward to Cozumel and the 

 West Indies. Though I have no New Jersey specimens, it is 

 included, as I have seen it at Cape May several years ago. Mr. 

 T. D. Keim and myself seined numbers of small mullets (Mugil 

 cepJiolus and Mugil cnrema) on the ocean beach just below 

 Rehoboth, Delaware, on October 12th, 1910. After examining- 

 the fishes and selecting a number, the rest were turned adrift in 

 the sea water. Then as we were about to lift our seine, numbers 

 of these smiall isopods were found in the moist sands, left ap- 

 parently by the receding water. They were all crawling about, 

 and we scooped up a number of them, which are now before me 

 I mention this fact as the species is said to be parasitic on young 

 mullet, though none of the great numbers of the latter contained 

 any whatever. Possibly the disturbance caused by the capture of 

 the fish had induced the parasites to let their hosts go? I have 

 never seen them on the squids, though have often searched for 

 them. 



In the United States this species is only recorded from Con- 

 necticut, Maryland, North Carolina and Florida. The above 

 notices, therefore would indicate its admission to New Jersey as 

 well as Delaware. 



Genus LIVONECA Leach. 



Livoneca Leach, Diet. Sci. Nat.. XII, 1818, p. 351. Type Livoneca redmanii 

 Leach, first species. 



