128 <A. BE Verrill—North American Fresh-water Leeches, . 
Section A. Ocelli 2, separate or confluent. 
Subsection @. Back smooth. 
Clepsine parasitica Diesing. 
Hirudo parasitica Say, Major Long’s 2nd Expedition to the source of St 
Peter’s River, Lake Winnepeek, etc., vol. ii, p. 266, 1824. 
Clepsine parasitica Diesing, Systema Helminthum, vol. i, p. 450, 1850. 
Body smooth, but distinctly annulated, much i 
broad, tapering anteriorly to the obtusely rounded head, broad 
and emarginate posteriorly, with a broad round posterior sucker 
or acetabulum, about half of which is exposed behind the end 
of the y- Length in extension 8 inches; test breadth 
3 to 5 of an inch, according to the degree of extension. Ocelli 
margin spotted like that of the upper side. 
West River, near New Haven, on lower side of floating wood, 
and at Norway, Maine,—A. E. Verrill; uent in the lakes 
alow North-western States, adhering to the sternum of tortois, 
a 
J: 
This species is one of the largest and most conspicuously 
colored of the genus. 
Clepsine picta, sp. nov. 
Body smooth, much depressed, broad posteriorly, somewhat 
tapering anteriorly, about 2°50 inches long in extension; vary 
ing in greatest breadth, from -25 to 30 of an inch. Acetabulum 
surface, 
ng Acetabulum 
varied with n and orange the green forming rays" 
the margin, ewnnitus with salmon-colored spots. Lower st 
face darker than the upper, deep greenish on the central part 
