30 CATALOGUE FAMILY UNIOX1IXK. 



\ Unio habetatus, Conrad. 



(Figured?) 



"Missouri." No further information is at present accessible. 



* Unio haleianns, Lea. 



(Trans. Am. Phil. Soc. 2nd Scries, Vol. VIII, Pi. XXVII, Fig. (53.) 



Described from the Mississippi river, at New Orleans. Specimens have been 

 received from Mr. Lea credited to the Indian Territory. 



t Unio hnysiamiN, Lea. 



(Trans. Am. Phil. Soc., Vol. V, PL III, Fig'. 7.) 



Described from the Cumberland river, Tennessee. It occurs also, in the Ten- 

 nesse, Powell, Clinch, and Holston rivers. U. noiverbyawus, Lea, is probably 

 synonymous. 



\ Unio higginsii, Lea. 



(Jour. Acad. Nat. Sci. Phila., 2d Series, Vol. V, PI. XXIV, Fig. 258. 

 Described from the Mississippi river, at Muscatine, Iowa, ranging thence to 

 the Little Blue river in Kansas. If U. orbiculatus, Hildreth, and this form be 

 identical, which is believed to be the case, then Mgginsii is a synonym, and the 

 range of orbiculatus considerably increased. Say also described this form under 

 the name of U. ahruptns. See "Descriptions of the Shells of North America," 

 PI. XVII." 



f Unio holstonensis, Lea. 



(Trans. Am. Phil. Soc.. 2d Series. Vol. VIII, PI. XV, Fig. 27.) 



This form which groups with U. cuneolus, was described from the Holston 

 river, in east Tennessee, and has been reported from no other locality. 



\ Unio hydianns, Lea. 



(Trans. Am. Phil, foe., Vol. VI, PI. VI, Fi;>. 14.) 



This form, originally described from the Bayou Teche, Louisiana, ranges west 

 to the Indian Territory and south to Trinity river, Texas. It is synonymous 

 with U. luteolus, Lamarck, which see. 



t Unio iiiterincdiiis, Conrad. 



(Monograph of Unio, PI. XXXV. Fig. 2.) 

 Described from the Nolachucky river, Tennessee. It occurs also in the Clinch 



CATALOGUE 24 



