168 
CLASS CRUSTACEA. 
of their peduncle as long or even longer than the preceding, 
and terminated by a long and setaceous stem. They approach 
micippus. Such are 
Kalimus, Lair., 
Two species, one very near the Cancer superciliosus of Lin- 
I1EGUS. 
those which form the two following subgenera have the 
ocular pedicles susceptible of complete retraction into their 
fossets, and protected posteriorly by a projection in the form 
of a tooth or angle of the lateral edges of the testa ; the second 
articulation of the peduncle of the lateral antenna) is much 
larger than the following ; they are terminated by a very short 
stem, in the form of an elongated stylet. 
Hyas, Leach, 
Have the lateral edges of the testa very much dilated, in the 
manner of an auricle, behind the ocular cavities, which are 
oval, and tolerably large ; the external side of the second arti- 
culation of their lateral antennae compressed and carinatcd, 
and the ocular pedicles capable of being entirely discovered, 
when the animal raised them up. The body is subovoid. 
(' Cancer araneus, Linn.) 
In 
Libinia, Leach, 
The ocular fossets are very small, and almost orbicular; 
the ocular pedicles are very short, and admit but of little pro- 
trusion. The second articulation of the lateral antennae is 
cylindrical, and but little or not at all compressed. The body 
is almost globular or triangular. 
We shall unite to these the Dochxa and Egeria of Dr. 
Leach. 
