y66 ZOOLOGY— LEECHES. 



was not collected. It has been found in Connecticut, Florida, Michigan, 

 Nebraska; and in Southern California at Larkin's Station and Warner's 

 Branch, Augaist, lS7. r >, by Dr. Edward Palmer. The specimens from the 

 last named locality have a median dorsal carina bearing a row of small 

 papilla?, and there is a less distinct row on each side of the back. The 

 ocelli are well separated. The exserted proboscis is slender, cylindrical, 

 and equal in length to the breadth of the body. In alcohol, the upper sur- 

 face is longitudinally striped with lighter and darker brown. 



The specimen from Larkin's Station is also longitudinally striped ; but 

 there are six rows of rounded, yellowish spots along- the back, and there are 

 two rows of inconspicuous papilla? between the median one and the margins. 



Section D.— Ocelli 8. 



Subsection a. — Back smooth. 



CLEPSINE OCCIDENTALS Verrill. 



Clepsine occidentalis Verrill, Syn. X. A. Fresh Water Leeches, in Rep. U. S. Coin. 

 Fish & Fisheries, 1S74, GS5. 



Body rather stout; in contraction thick and convex; about 0.75 of an 

 inch long and 0.30 broad, tapering to both ends. Ocelli eight; those of 

 the second and third pairs largest; those of the third farthest apart; those 

 of the fourth small and near together. Dorsal surface smooth, with faint 

 indications of small, low papilla? anteriorly. Acetabulum small. Color, in 

 alcohol, yellowish-brown, with fine transverse lines of darker. 



San Luis Valley, Colorado, II. W. Henshaw, 1873. 



Two other species of Clepsine have been found in Colorado: — 



CLEPSINE PALLIDA Verrill. 



Clepsine pallida Verrill, op. cit,, (W4, f. 2 b (not «, as there indicated by error). 



This species has six ocelli and a smooth dorsal surface, generally 

 marked by two dorsal dark lines near the median line of the back. It has 

 been found in Connecticut, and also in Colorado near Long's Peak, at about 

 9,000 feet elevation (Geol. Surv. of Terr.) 



