CALLIOPE EINGALLI. 



263 



AMPHIPODA. 



NATATORIA. 



OAMMARIDEI<. 



CALLIOPE FINGALLI. N.S. 



Specific character. Like C. Ossiani, but having the hxst segment of the 

 pereiou, and first three of the pleon, with the posterior dorsal margins pro- 

 duced into an obtuse tooth, each increasing in size posteriorly. 



Length }^ inch. 



This species may possibly be only an exaggerated 

 variety of C. Ossiani. All the features peculiar to that 

 species appear, howeverj in this, to be so much de- 

 veloped (as noticed in our descriptions), that they alto- 

 gether change the appearance of the animal. 



The cephalon is produced anteriorly into a short flat 

 rostrum. The back of the animal is round from the first 

 to the seventh segment of the body, which is produced 

 posteriorly and slightly elevated into a tooth. This 

 feature is repeated in the first three segments of the 

 tail, increasing in dimensions posteriorly. The teeth are 



