A. FE. Verrill—North American Fresh-water Leeches. 187 
fold; behind these, and separated by a deep groove, there are 
six well-marked plications in the cesophagus. Anus with ele- 
vated, crenulate borders. Male organ between the 24th and 
25th segments of the body. Acetabulum round, of moderate 
size. Color of the preserved specimen, dark slate- brown, above, 
with few irregularly scattered remote black spots, and with still 
fewer, small, white specks. Beneath lighter slate-brown, with 
very few black spots, toward the margins. 
ear New Haven,—A. E. Verrill. 
Democeprs Kinberg, loc. cit., p. 356. 
This genus, according to Kirberg, has “ three muscular, com- 
pressed, edentate maxille,” with the habit of Hirudo. The two 
species first named by him are from Port Natal and have 10 
ocelli. The remaining species has but 8 ocelli, and is described 
as follows. 
Democedes maculatus Kinberg, loc. cit., p. 356. 
irregular black and white spots ; cephalic lobe 5- or 6-annulate ; 
ocelli 8; fourth pair on the buccal segment ; abdominal orifices 
in the 25th and 80th segments; segments 94; length 88™™. 
Wisconsin,—Kumlin. 
MACROBDELLA, gen. nov. 
opening dorsal, in advance of the posterior sucker. 
This cenus has a remarkable combination of the characters of 
* Leidy says that the male orifice perforates the 25th annulus, but he appar- 
ently excludes the buccal segment from his count. 
