520 APPENDIX. 
AMPHIPODA. AYPERID. 
HYPERINA. (Vol. II p. 18.**) 

HYPERIA PREHENSILIS, N.S. 
Specific character. Superior antenn about the length of the head. Both 
pairs of gnathopoda with the carpus and propodos simple. Three hind pairs 
of pereiopoda subprehensile at the tips. 
Length, three-twentieths of an inch. 
Tus species differs from H. tauriformis next described in 
having longer antennze, the proximal margins of the carpus 
and propodos of both pairs of gnathopoda not serrated, and 
in having the propodos of the last three pairs of pereiopoda 
inferiorly produced and armed with short strong cilia. This 
gives a prehensile character to the last three pairs of pereio- 
poda that we have not recognized in other species. 
Taken at Banff, by Mr. Edward, with the preceding species. 
