A. E. Verrill—North American Fresh-water Leeches. 1338 
Nephelis quadristriata Grube. 
Famil. des Annel. pp. 110 and 149; Diesing, Sitzungsberichte der kaiserlichen 
Akad. der Wissenschaften, Math.-Naturwiss. Classe, xxxiii, p. 496, 1859. 
smaller, inconspicuous ones, are placed well pa on the sides 
of the buccal segment. Anal orifice large, with a raised border, 
_ spots, which often also form the center of the black spots. 
Lower surface plain brown or fuscous, usually a little lighter 
than the back. 
ew Haven and Farmington, Conn.,—A. E. Verrill: Fal- 
mouth, Mass.,—Dr. Edw. Palmer. This species is very common 
in the fresh waters of New England. 
Nephelis lateralis Verrill. 
Hirudo lateralis Say, Long’s Second Expedition, vol. ii, p. 267, 1824; Diesing, 
Syst. Helm., vol. i, p. 474. 
Nephelis lateralis Verrill, this Journal, ii, p. 451, 1871. 
The original specimens, described by Say from the waters 
between Rainy Lake and Lake Superior, were dull livid with 
“a few very remote minute black points, and a rufous line along 
each side;” the ‘six ocular points are placed in a regularly 
curved line.” 
A specimen from New Haven appears to belong to the same 
species, This was 3 or 4 inches long in extension, and ‘15 to 5 
wide; rather slender and subterete anteriorly, somewhat de- 
pressed posteriorly, with the margins rounded. Head obtusely 
rounded in front, not very distinctly annulated. Ocelli six, 
are very small and well separated. Acetabulum as wide as the 
body het extended, with a circular row of blackish sub- 
