16 
ORCHESTIIDiE. 
AM PH IPOD A. ORCHESTIIDIE. 
SALTATORIA. 
TALITRUS LOCUSTA, Linnaeus? 
[The Sand-Hopper.) 
Specific character. Superior antennse only reaching to half the length of 
the penultimate joint of the peduncle of the lower. Last joint of the 
peduncle of the inferior antennse nearly twice as long as the penultimate. 
First pair of gnathopoda robust and powerful. Second pair of gnathopoda 
feeble, membranaceous, terminating in an imperfectly-formed sub-chelate 
hand ; dactylos small and remote from the extremity of the propodos. Pos- 
terior pair of pleopoda very short. Telson rudimentary. 
Length, half to three quarters of an inch. 
Cancer Locusta , Linn^us, Fauna Suec. No. 2042?* Syst. Nat. 
ii. 1055, and Edit. Turton, vol. iii. p. 760 
(1806). 
* The descriptions of the species of Amphipoda given by the earlier carci- 
nologists are by no means sufficiently precise to allow satisfactory identifica- 
