94 UNIVERSITY OF COLORADO STUDIES 



Catalogue of Colorado Mollusca 



[The references are to publications listed in the preceding bibliography, the figures in 

 bold-faced type indicating the number of the publication in the bibliography, the light- 

 faced figures indicating the page. The published records and synonomy appear first, 

 followed by our new records and occasional comments.] 



Genus ANODONTA (Bruguiere Em.) Lamarck 

 Anodonta grandis gigantea Lea. PI. I, fig. i. 



Anodonta plana Lea, collected by Mr. Chas. T. Simpson in Lodge Pole Creek, 

 Cockerell 22, 61. 



We find no other other record. A. plana has been since placed in synonomy oi A. g. 

 gigantea, but the validity of the subspecies may be doubted, in which case this record 

 would stand as A . grandis Say. 



Genus STROPHITUS Rafinesque 

 Strophitus edentulus pavonius Lea. PI. I, fig. 2. 



Strangely enough, this large species does not appear to have been recorded from 

 Colorado, although it Hkely occurs in all streams of the plains bordering the mountains at 

 least from Denver northward. We have received specimens collected by Prof. A. E. 

 Beardsley in the Cache la Poudre near Greeley, by Prof. D. W. Spangler in the St. Vrain at 

 Longmont, by Prof. E, Bethel in a lake near Denver and have collected them in the Platte 

 near Evans and in the Crow Creek water-holes, 25 miles northeast of Greeley. Some of 

 Prof. Bethel's specimens reached a length of 140 mm. 



Genus ANODONTOIDES Simpson 



Anodontoides ferrussacianus Lea. P!. I, fig. 3. 



Anodonta ferussaciana, collected by Mr. Simpson in Lodge Pole Creek. Cockerell 

 22, 61. 



Genus LAMPSILIS Rafinesque 



Lampsilis ventricosa Barnes. PI. I, fig. 4. 



Unio occidsns Lea. Collected by Mr. Simpson in Lodge Pole Creek. Cockerell 

 22, 61. 

 Lampsilis anodontoides Lea. PI. II, fig. 5. 



Unio anodontoides. Lodge Pole Creek, Simpson 48, 430. 

 Lampsilis luteola Lam. PI. H, fig. 6. 



Unio luleolus, eastern Colorado, Simpson 47, 88. 

 Unio tetralasmus camptodon Say. PI. II, fig. 7. 



Four or five specimens were collected by Prof. A. E. Beardsley, in Carrizo Creek, in 

 1 88 1, but had never been recorded. 



Genus SPHiERIUM Scopoli 

 Sphaerium occidentale Prime. 



Pond near Black Lake, Cockerell 22, 65. 

 Sphaerium hendersoni Sterki. PI. II, fig. 8. 



Crow Creek water-holes, Sterki 61 a. 69. 



The type-specimens of this fine, large species were found by the University of Colorado 

 Pawnee Butte expedition. They occur in large numbers in the Crow Creek water-holes 



