

CYMOTHOIDEA. 755 



Nassau Bay, Fuegia ? Eio Janeiro ? 



Length, one-half an inch. The outer caudal lamella has its outer 

 side nearly straight or but slightly arcuate, and the inner projecting 

 somewhat into an angle. The head is longer than the first abdominal 

 segment, and the antennae are short, not as long as breadth of head. 

 The last abdominal segment is about as long as broad, or scarcely 

 longer, somewhat broadest at base and slightly angled at extremity. 



iEGATHOA LATICEPS. 



JE. macrophthalmae affinis. Caput parce latius et brevius, vix trans- 

 versum. Oculi grandes, antice remotiores, super caput marginibus ocu- 

 lorum rectis et inter se postice propinquioribus. 



Near JE. macrcplitlwlma. Head a little broader and shorter, slightly 

 transverse. Eyes large, more remote anteriorly, the outline on top 

 of head straight, and those of the two eyes nearest behind. 



Plate 50, fig. 13, animal, enlarged three diameters. 



Nassau Bay, Fuegia ? Rio Janeiro ? 



Length, half an inch. The eyes in an upper view are nearest to 

 one another on the posterior part of the head at the articulation, and 

 the margins as here seen diverge forward, so as to be nearly twice as 

 far apart anteriorly. 



Family II. JEGIVJE. 



Subfamily JEGINM. 



The species of this subfamily are often found attached to the body 

 of fishes ; while the Cirolaninae do not appear to be parasitic in habit. 



192 



