Amphipoda Synopidea. 15 



of anteimfe is much deeper. The head is fully as long as the first four 

 pereional segments. 



The large median eye is surrounded by 20 ocelli in an unbroken 

 circle. The secondary eyes are separated from the median one by a 

 longer distance than in the other species. 



The first joint of the first pair of antennce is almost globular, the 

 second narrow, linear, scarcely half as long as the first, the third a 

 little longer. The flagellurn consists of five joints, the first much the 

 longest, all richly provided with long hairs. The secondary flagellurn 

 is two-jointed. 



The second pair of antennae were broken off. 



The pereion. The first four segments are equal, the last three a 

 little longer, equal. 



The epimerals of the first and second segments are deeper than 

 long; the following could not be examined. 



The pereiopoda, as far as it could be ascertained, are very similar 

 to those of S. ultramarina, differing only in the form of the femora of 

 the last three pairs, and in the length of the fifth pair. 



The pleon. The first segment is a little longer than the second, 

 the pleon is exactly as long as the pereion. 



The pleopoda. The peduncles are shorter than the flagella. 



The urus is as long as the first four pereional segments. The 

 last segment is longer than the second. 



The first pair of uropoda reach almost to the apex of the last pair. 



The telson is a little longer than the peduncle of the last pair of 

 uropoda, equalling the last ural segment in length. The fissure is 

 scarcely a third of the length of the telson. 



Colour. White, with a few red spots at the lower ends of the 

 pereional segments. 



Length. 5 m.m. 



Hab. The Caribbean Sea. [S. M.] 



One specimen in the stomach of a small Exocoetus, 

 off the coast of Venezuela at the Long, of the Island 

 of Margarita. 



