ISOPODS OB' NCJRTH AMERICA. 



205 



a« the second; the rit'th is one and a half times longer than the fourth. 

 The flaoelluni is coni}K)sed of sixteen articles. The second antenna? 

 extend to the middle of the third 

 thoracic sej>inent. The palp of 

 the maxillipeds is c()nij)osed of 

 two articles. 



The sej»"ments of the thorax 

 are subecjual in lenj>th, each he- 

 iny- H mni. lon*>', with the excep- 

 tion of the first, wliich is 4 mm. 

 The e[)imera are distinctly sepa- 

 rated on all the seonients with 

 the exception of the ti rst. Those 

 of the second and third seonients 

 ha\e the posterior extremities 

 I'ounded; those of the last four 

 seo'inents have the posterior ex- 

 tremities acutely pointed, and 

 the last three are produced be- 

 yond the posterior margins of 

 the segments. 



The first segment of the al)do- 

 meii is entirely concealed by 

 the seventh thoracic segment. 

 The remaining fiv^e segments 

 are distinct. The sixth or ter- 

 minal segment is broader than 

 long, 14 mm.: 12 mm. It is 14 

 mm. wide at the base and also 

 14 mm. wide about the middle 

 of the segment. The posterior 

 ctrcmity is widely rounded. 

 The uropoda extend to the ex- 

 tremity of the terminal abdom- 

 inal segment. Both branches 

 are equal in length and are 

 rounded posteriorlv. The outer fio- ^oi.-rocinela laticauda (after Hansen). 



, __ 1 . ,' U l-j! +• (I, EPIMERA OF SMALL FEMALE. X 3. b. ABDOMEN 



orancli is one and a iialt times with iropoda of .same, x 3. c, both pairs of 



as wide as the inner branch 



ihe peduncle of (tie uropoda general figure 



has the inner angle produced, 



and this process extends a little beyond thi^ middle of the terminal 



segment of the abac men. 



The first three pairs of legs are prehensile and have the propodus 



/ 



WITH UROPODA OF SAME. 



ANTENN.E OF MALE. .X n. d, FIFTH LEG OF LARGE 



FEMALE. X 4. e, Second leg of same, x 4. /, 



MALE. X 1. 



