680 REPORT OF COMMISSIONER OF FISH AND FISHERIES. • 



youDg, common ; very abundant in stagnant pools near 'New Haven, 

 April 20, 1873, without eggs or young. White Mountains, Arizona — 

 Lieut. Henshaw, Wheeler's expedition; Beaver Creek — Dr. H. 0. Yar- 

 row ; Lake Raymond, Nebraska — T. M. Prudden, Yale scientific expedi- 

 tion, 1873; Lake Okechobee, Florida — E. Palmer; Springs, Saguache, 

 Colorado — Ernest Ingersoll, Hayden's expedition. 



Subsection b. — Back papillose. 



Clepsine ornata Verrill. 



American Journal of Science, vol. iii, p. 130, 1872. 



The specimens of this species originally described, although found car- 

 rying young, were probably immature. Specimens of much larger size, 

 and having more numerous papilla, have since been obtained. They 

 are so diiferent as to be easily mistaken for another species, but their 

 young have been found to agree with the original description. It is 

 probable that this, and other species of Clepsine, begin to breed long 

 before they become full grown, and that they live several years. The 

 following is the original description : 



"Body somewhat depressed, rather broad and obtusely rounded pos- 

 teriorly, in extension tapering, but not slender anteriorly, about 1.25 

 inches long. In contraction elliptical, and about 0.20 broad in the middle. 

 Back with a median papillose dorsal carina, and two similar ones mid- 

 way between it and the margins. Head broad, acuminate, whitish in 

 front and at the margins. Ocelli united into a single, small, transverse 

 spot, situated at the edge of the white area. Acetabulum moderately 

 large, round, about half of its breadth exposed behind the end of the 

 body. 



"A dark green line passes along the median carina, interrupted aute- 

 riorh' by several transverse orange vittse, and farther back by some pale 

 orange spots ; the first of the transverse spots or vittee is pale orange, 

 and is just behind the white area of the head ; this is followed by a 

 transverse greenish brown one, which is succeeded by a longer trans- 

 verse orange one ; farther back is another transverse vitta, or band, of 

 the same color. The posterior part of the back and upper side of aceta- 

 bulum are flesh-color, specked with pale orange and purplish. The pa- 

 pilliB of the lateral carinse are partly orange and partly brown. The 

 rmargin is pale purplish, with conspicuous squarish spots, alternately 

 'briglit green and orange. The rest of the upper surface is variegated 

 with bright green and pale brown, and specked with darker brown. 

 Lower surface pale green, with a median light line ; the margins colored 

 as on the upper side. 



" The attached young, June 6, were about 0.12 of an inch long, and very 

 slender in extension. Anteriorly, they were purplish red, with bright 

 red s[)ecks, and with a median row of red points, while several median 

 wliite spots occupied the positions of the large transverse orange spots 

 of the adults.^ Posteriorly the branched lobes of the intestine gave a 



