CHONDRACANTHIDiE. 
323 
Tribe 1 — AN CHORASTOMA CEA. * 
Chondracanthiens, M. Edwards , Hist. Nat. Crust., iii, 491. 
Character — Females. Attached to their prey by means 
of their foot-jaws, which are stout and armed with strong 
hooks. One pair of antennae ; generally very distinct. 
Thoracic feet nearly rudimentary, or represented by appen- 
dages of considerable size, but differing in form from 
ordinary feet. 
Males. Tree and unattached ; very small and differing 
totally in appearance from the females. 
Family CHONDRACANTHIDiE. 
Chondracanthiens (pars), M. Edwards. 
Character. — Organs representing thoracic feet, in form 
of considerable-sized, cartilaginous- looking, not articulated 
appendages; generally three pairs in number. Three 
pairs of foot-jaws. 
Bibliographical History . — Linnaeus, in his f Wastogota 
Resa,’ or tour through Westrogotha in 1747, describes a 
species of Lernea, which he afterwards named Lerncea 
asellina , that evidently belongs to the family of Chondro- 
canthidae. This is the first notice of any species that we 
have met with, but the figure is too indifferently executed 
to enable us very distinctly to refer it to any one de- 
scribed. Barbut, in his ‘ Genera Vermium,’ 1703, copies 
the figure as it is, and mentions it as the Lernea that 
infests the gills of the cod and ling of the Northern 
Ocean. Muller, in his ‘ ZoologiaDanica,’ 1781, describes 
and figures three other species infesting the fishes of the 
Danish seas, two found on soles, and a third on the Cory - 
phcena rupestris. Delaroche, in the ‘ Nouv. Bull, des Sc. 
de la Soc. Philom./ 1811, describes another species, and 
* Ayicvpa , anchor ; and <r rojxa , mouth. 
