326 
HISTORY OF BRITISH CRUSTACEA. 
others, which are fixed less deeply, and take np their abode 
under the fins and such places, sucking the slimy juices of 
the skin. - ” The young have a large eye, and are furnished 
with two large pairs of swimming-feet, and are nimble and 
active, so that, as Dr. Baird says, “ it is not the least curious 
part of the history of these singular-looking animals that the 
young should thus stand on a higher stage of development 
than the mother” 
The first tribe is named Anchoradomacea , by Dr. Baird, 
from the females being fixed to their prey by means of the 
foot-jaws, which are strong and armed with hooks. There 
is one pair of antennae ; the thoracic feet are nearly rudi- 
mentary, or represented by large appendages. The males 
are very small, free, and unattached, and totally unlike their 
partners. 
Bam. CHONDRJCANTHIDAV, Baird. 
Boot-appendages large, cartilaginous, generally three 
pairs; three pairs of foot-jaws. 
Gen. 182. CHONDRAC ANTHU S, Delaroche. 
This genus derives its name^ from its appearing to be 
* Xovdpos, cartilage, and cucavOa, a spine. 
