ORDER DECAPODA. 
175 
teriorly, denticulated or spiny on the sides. The eyes are 
situated near the middle of the forehead, and carried on short 
pedicles. 
Dromia, Fab., 
Have the four posterior feet inserted on the back, and ter- 
minated by a double hook ; the testa suborbicular, or almost 
globular, gibbous, and woolly, or well furnished with hairs. 
( Cancer dormia , Linn.) 
Dynomene, Latr., 
In which the two posterior feet, much smaller than the others, 
are alone dorsal, and as it appears to us, imperfect. The 
testa is widened almost into the form of an inverted heart, and 
truncated posteriorly, like that of the last quadrilatera, and 
simply furnished with hairs. The ocular pedicles are longer 
than those of Dromia. (. Dynomene hispida, Desmarest.) 
The last notopeda differ from the preceding, in that all the 
feet, with the exception of the claws, are terminated like fins, 
and from all the other brachyura, in having the tail extended. 
Such are, 
Kanina, Lam. 
Their testa is elongated, proceeds narrowing from front to 
rear, and has generally the form of an inverted triangle, with 
the base denticulated. The ocular pedicles are elongated. 
The lateral antennae are long and advanced. The external 
jaw-feet are equally elongated, narrow, and with the third 
articulation contracted into a point towards its extremity. 
All the feet are very much approximate, or almost contiguous 
at their origin, and beginning from the fourth pair, they 
