4 Mr. Montacv’s Description of several new or rare Animals, 
Doctor Turton describes a species of Cancer gammarus from 
the British Museum under the title of carino-spinosus, which in 
some respects accords with this; but as half a dozen words con- - 
vey so little, and the size is omitted, I dare not refer to it. 
-~ It may be proper to remark, that in the figures given of this 
and the following Cancri, the legs only on one side are shown, to 
prevent confusion in these magnified species, except in figure 6. 
CANCER GAMMARÜS GALBA. 
Tas. lI, Fig. 2. 
Body ovate, somewhat elongated at the tail, smooth, glossy, 
and when alive of an olive-green minutely speckled with brown, 
but by drying becomes rufous-brown: antennz of the male re- 
markably short; in the female two pairs extremely long, and 
slender, nearly equal to the length of the body: joints of the 
body, independent of the head, and the joint to which the caudal 
fins are attached, eleven: the head is large, and much resembles 
that of a maggot, and in the male appears to have no division 
between the eyes, but a continuation of the same transparent 
membrane covers the whole: the eyes of the female are very 
large, but distinctly marked by a division : the two pairs of anterior 
legs, like those of C. spinosus, are small, and not subcheliferous, 
but occupy the place of arms, and scarcely differing in any re- 
spect from the other five pairs, all of which are furnished with a 
very small claw: abdominal fins three pairs; caudal fins five, 
flat, and bifid ; the middle one very broad, concealing the others 
which are capable of spreading laterally. 
Length lialf an inch or more. 
The female is rather more slender in the body, and does not 
so suddenly decrease towards the tail: the eyes, as before men- 
tioned, are distinct, and are of a bright red when alive, reticulated, 
and 
