178 



UNIVERSITY OF COLORADO STUDIES 



Sucdnea 



Genus SUCCINEA Draparnaud 

 Succinea salleana Pfr. Fig. 23. 



A few collected at Florence by Prof. E. A. 

 identified by Dr. Bartsch as of this species. 



Kenyon were 



Fig. 24. — Succinea sillimani. 



Succinea sillimani Bland. Fig. 24. 

 Denver, Cockerell 25, 29, 30. 



Fig. 25. — Suc- 

 cinea retusa. 



Fig. 26. — Suc- 

 cinea nuttalliana. 



Succinea retusa Lea. Fig. 25. 



Sticcinea ovalis Gld. (not Say). Mouth of Blue River, Ingersoll 



35. 399- 



Sticcuiea pfeijjeri Rossm. West Chff, Cockerell 22, 63. 



Succinea nuttalliana Lea. Fig. 26. 



Hot Sulphur Springs and Animas Valley, Ingersoll 35, 399. 

 Subfossil at Grape Creek. Cockerell Mss. 



A few have been received from Prof. E. A. Kenyon, collected at 

 Florence. 



Fig. 27. — Succinea haydeni. 



Succinea haydeni W. G. B. Fig. 27. 



A few received from Prof. A. E. Beardsley 

 of the State Normal School were collected 

 at Greeley. 



Fig. 28. — Succinea 

 grosvenori. 



Succinea grosvenori Lea. Fig. 28. 



Colorado, Pilsbry & Ferriss 45, 161; Pilsbry & Johnson 43, 

 34. Greeley (L. C. Wooster), Vanatta Mss. 



Succinea lineata Say. Estes Park, Binney 5, 623. Twenty 

 miles west of Saguache, Animas Valley, bank of Bear river and 

 San Luis lakes, Ingersoll 35, 400. Empire, Ingersoll 37, 132. 

 Kremmling, Cockerell 26, 45. Greeley, Cockerell Mss. (Ingersoll's specimens said to 

 be mostly avara, Cockerell 22, 64.) 



Sticcinea lineata form elongata Ckll. Type locaUty KremmUng, Cockerell 24, 39; 

 26, 45. 



Succinea mooresiana Lea. Round Mt., Cockerell 26, 44. 



Prof. E. Bethel has sent us a few found fossil by Prof. Geo. L. Cannon in ancient 

 overwash of the South Platte near Denver. 



Fig. 29. — Sue 

 cinea avara. 



Succinea avara Say. Fig. 29. 



South Park, Fairplay, Twin Lakes and Loma, up to 10,000 ft., 

 Yarrow 68, 935. Custer, Saguache and Pueblo Counties, Cockerell 22, 

 63, 64. .Custer County and near Cattle Creek (Cockerell), Greeley 

 (L. C. Wooster), Gunnison County (B. H. Smith), Vanatta, Mss. 



Succinea avara compacta Ckll. Type locaUty Chalk Creek, Cockerell 24, 39; 26, 44. 



Form alba Ckll. Horseshoe Bend Gulch, Cockerell 26, 43. 



Succinea avara vermeta Say. Subfossil at Grape Creek, Cockerell Mss. 



A short, globose form at Denver, Cockerell Mss. 



We found it living at Boulder, fossil at Bear Canyon and dead at Manzanola, and 

 have received dead shells from MagnoHa, collected by Mr. D. M. Andrews; from Granby, 



