NORTH AMERICAN FRESH-WATER LEECHES. 681 



greenish color to the body. Ocelli closely united into a transversely 

 triangular or bilobed spot of bright red. 



" West Elver, on the lower sides of submerged wood and pieces of 

 boards." 



Yar. h, stellaia. — Body broad-oval in contraction ; moderately elon- 

 gated in extension; strongly aunnlated ; in extension, about 1.25 to 

 1.50 inches long, and 0.20 to 0.30 broad ; in contraction, about 0.40 

 long, but sometimes larger than this ; head obtuse in front ; ocelli 

 more or less confluent into a conspicuous transversely triangular or 

 bilobed eye, usually surrounded by a white area ; back moderately 

 convex, with numerous quite small papill*, forming a transverse row 

 on each annulus. Along the middle of the back, there is a longitu- 

 dinal row of somewhat larger and more prominent, yet small, conical 

 papilla, and two similar rows exist on each side, between the median 

 row and the margins. The larger papillae are usually tii^ped with 

 white ; color above variegated dark greenish brown, with a median 

 line and marginal spots. The surface is covered with brown and 

 green stellate specks, and sometimes with some orange-colored ones, 

 the greeu ones generally prevailing toward the margins. Along each 

 edge and around the acetabulum, there is a series of flesh-colored, 

 pale yellowish, or light orange semicircular spots ; head with a traus- 

 verse median spot of white. A pale yellow or white transverse line 

 crosses the neck. The dark green, brown, or blackish median dorsal 

 line is scarcely interrupted. One or two longitudinal rows of flake- 

 white often extend along each side of the median line on the papillse, 

 and similar white specks are often scattered over the back ; lower sur- 

 face brownish, with stellate specks of green ; near the margin, like the 

 upper surface. Some of the specimens, which were quite dark colored 

 when caught, in April and early in May, carried large clusters of bright, 

 deep yellow eggs, and others were just laying. The specimens, though 

 quite dark colored when taken, were kept until July 17. By that time 

 they had become much lighter, the yellow, pale orange, and greenish 

 hues prevailing, though stellate specks of dark green and brown were 

 still present. 



Var. c, rugosa. — Larger than the preceding; strongly annulated, each 

 anuulation with a row of 20 to 30, or more, larger, conspicuous, rough, 

 conical papillie, with many unequal smaller ones between them, in several 

 irregular rows, or scattered. Ocelli very close together, but separated by 

 a narrow light line, in adult preserved specimens; united in the attached 

 young. The color, in alcoholic specimens, is yellowish green, variegated 

 with blotches of dark brown ; margin of body and acetabulum with semi- 

 circular, pale, orange spots, covering the width of about two aunula- 

 tions, and separated by narrower, greenish brown spots, about half as 

 wide ; head with a light, longitudinal vitta. The attached young have 

 three dorsal, longitudinal rows of small papillae, the median one double 



