228 GYGE GAJATHE/E. 







anteriorly broad and projecting hood-like over the an- 

 tenna?. The segments of the pereion are all present as 

 well as those of the pleon, with which they are subequal, 

 the last segment terminating in a central tubular 

 process, the extremity probably of the alimentary 

 canal. (See the upper right-hand figure.) 



The eyes are small, irregular blotches, situated within 

 the lateral and near the posterior margin of the cephalon. 

 The first pair of antennae are rudimentary, consisting 

 of a basal joint of tolerably large proportions, and a ter- 

 minal triarticulate fiagellum. The second pair are more 

 than half the length of the animal, and consist of three 

 (or four ?) large joints and a terminal slender one tipped 

 with four hairs, one of which is very long and strong and 

 two very short. The four anterior pairs of legs have the 

 propodos round and the dactylos short and curved, the 

 three posterior pairs have the propodos long, narrow, and 

 the dactylos straight. The last two differ from the ante- 

 penultimate in having the carpus produced along the 

 inferior margin of the propodos to the posterior angle 

 of the palm. The pleopoda are five pairs, and consist 

 of a series of foliaceous plates tipped with an external 

 long and an internal short hair. The posterior pair of 

 pleopoda are biramous, each branch being biarticulate, 

 terminating in a fine hair-like point. 



The specimens from which these descriptions are taken 

 were procured by the Rev. A. M. Norman at Herm, in 

 Guernsey, on a specimen of Galathea squamifera. 



With the exception of a difference in the habits of the 

 species, the one above described seems (so far as we are 

 able to judge from the description and figures of both 

 sexes, given by Messrs. Cornalia and Panzeri in their 

 elaborate memoir above referred to of G. branchialis, 

 which infests Gebia Venetiarum and littoralis], scarcely 



