LERNEA. 
333 
Pam. LERNEOCERADJE, Baird. 
Under surface of body without any vestiges of feet or 
other appendages. 
Gen. 187. LEENEOCEBA, Blainv. 
Head with horn-shaped appendages, simple and symme- 
trical. Ovaries straight, and of moderate length. Body 
long and slender. 
Lerneocera cyprinacea, Linn. sp. — Head with four 
long, slender, horn-shaped appendages. Length of animal, 
about eight lines. 
Barbut mentions this as a common species on the sides 
of the carp, bream, and roach, in many of our ponds and 
rivers; but Dr. Baird says he has not seen specimens of 
this species. 
Gen. 188. LEBNEA, Linn . 
Body more or less twisted; head with horn-shaped 
appendages, irregularly branched ; ovaries twisted into 
round masses ; abdomen of considerable size. 
Lernea branchialis, Linn, Gill-sucJcer. (Plate XX. 
fig. 4.) — Whole animal of a firm consistence, being hard 
