APPENDIX. 499 
AMPHIPODA. ; STEGOCEPHA LIDES. 
NATATORIA. (Vol. I. p. 66*.) 

MONTAGUA CLYPEATA. 
Specific character. Second pair of gnathopoda with the propodos oblong, 
slightly widening to the distal extremity, where it is truncated, terminating 
below in a porrected point ; the palm slightly curved and serrated. 
Length, three-twentieths of an inch. 
Montagua clypeata. Spence Barr, Cat. Amph. B. M. p. 58, pl. ix. fig. 4 
Leucothoé clypeata.  Kroy., Nat. Tids.iv. p. 141, pl. 6, fig. 2a, LinisEBore, 
in Ofvers. af Kongl. Vetensk. Forhandl., 1851. 
Somer specimens, taken by the Rev. A. M. Norman off the 
coast of Northumberland, agree so closely with the description 
and figures of Kroyer above referred to, that we have little 
doubt but that they belong to the species which he has de- 
scribed under the above name. The form of the hand of the 
second pair of gnathopoda, of which we give a figure, bears 
such a relation to that which we have deseribed as belonging 
to M. pollexiana, that we are inclined to believe that Kroyer’s 
specimen may be but the female of ours. But this is yet to 
be determined, in which case our species would yield its name 
to the earlier one of Kroyer. 
KK 2 
