APPENDIX. 5038 
AMPHIPODA. LYSIANASSIDES. 
NATATORIA. (Vol. I. p. 118.**) 

OPIS QUADRIMANA, N.S, 
Specific character. Upper antenne with the secondary appendage nearly 
reaching to the extremity of the flagellum. First pair of gnathopoda with 
the propodos quadrate, truncated at the end, the inferior angle armed with a 
strong pointed spine. 
Length, one-eighth of an inch. 
Tus species differs from the preceding in having the 
superior antenne longer, and furnished with a secondary 
appendage that reaches nearly to the extremity of the flagel- 
lum; the inferior antenne being scarcely longer than the 
superior, and in the first pair of gnathopoda being much 
more robust than the second. The propodos of the first pair 
is quadrate, the palm being at right angles with the anterior 
and posterior margins, and armed with a minutely denticu- 
lated thickened margin; inferior angle produced to a short 
strong tooth, against which the apex of the slightly curved 
dactylos impinges. 
This species was sent to us by Mr. Edward, who took it off 
the Banffshire coast. 
