ANCEUS EDWARDII. 201 
ISOPODA. ANCEID. 
ABERRANTIA. 

ANCEUS EDWARDII. 
Specific character. Female with the three posterior segments of the body 
forming an elongate-ovate mass. Outer gnathopod minute, four-jointed, 
inner gnathopod very large, five-jointed, the basal joint not produced into 
a linear appendage at its inner angle, terminal joints densely ciliated on the 
outside. 
Length, one-sizth of an inch. 
Praniza Edwardit. Spuynoz Barr, in Annals Nat. Hist. ser. 3, vol. 21, 
pl. vi. figs. 1, 2, and details. 
Unper this name have been described certain female 
individuals belonging to this genus, which had cer- 
tainly arrived at the adult state, as proved, not only 
by the existence of fully developed larve within the 
incubatory pouch, but also by the structure of the 
mouth organs, which had entirely lost the suctorial form 
of the immature condition. These females are of a 
much narrower and more elongate form than the fully 
developed females of either of the other species described 
in this work. It is, in fact, owing to these animals being 
in the fully developed state that they possess “ the more 
continuous and less graceful outline from the anterior 
part of the head to the posterior part of the pereion,” 
which the author indicated as distinguishing these 
animals from the full-grown larvee of Praniza ceruleata. 
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