SUCCINEA. 



259 



obtuse ; suture deep : whirls three, convex, the last rather depressed ; the 



columella scarcely arched, above conspicuously plicate ; 



aperture angularly oval, frequently armed with a small, F'g- 459. 



oblique, white tooth on the parietal wall ; peristome 



simple, regularly arcuate. Length 15, diam. 7 mill. ; 



aperture 11 mill. long. 



Succinea higginsi, Bland, Am. Journ. Conch. II, 373, 



pi. xvii, f. 24 (18G6). — Tkyon, Am. Journ. Conch. Succinea higginsi. 

 II, 237, pL ii, f. 24 (1866). 



Put-in-Bay Island, Lake Erie. 



Succinea haleana, Lea. — Shell obliquely ovate, shining, some- 

 what transparent, thin, golden color ; spire short ; sutures im- 

 pressed ; whirls three, convex ; aperture large, broadly oval ; Fig. 460. 

 outer lip regularly expanded ; columella incurved. Diam. .17, A 



length .23 inch. Alexandria, La. {Lea.) %Wk 



Succinea 

 haleana. 



Succinea haleana. Lea, Proc. Acad. Nat. Sci. Philad. 1864, 

 109.— Tkyon, Am. Journ. Conch. II, 241, pi. ii, f. 34 

 (1866). 



Succinea halei, Lea, Journ. Acad. Nat. Sci. Philad. ; Obs. XI, 136, pi 

 xxiv, f. 110. 



Mr. Lea's original description is given above, 

 drawn from a specimen received from him. 



Fig. 460 i£ 



Succinea niooresiana, Lea. — Shell obliquely oval, minutely 

 striate, opaque, whitish, somewhat thin ; spire exserted ; 

 sutures impressed; whirls three, a little convex; aperture Fi". 461. 

 nearly round ; outer lip expanded ; columella incurved and 

 twisted. Diam. .24, length .39 inch. Court House Rock on J^k 



Platte River. {Lea.) ^pfel 



Succinea mooresiana, Lea, Proc. Acad. Nat, Sci. Philad. 



1864, 109 ; Journ. of same, pi. xxiv, f. 109 ; Obs. XI, . „ 



136, pi. xxiv, f. 109. — Tryox, Am. Journ. Conch. II, 

 235, pi. ii, f. 17 (1866). 



The above is Mr. Lea's original description. Fig. 461 is 

 drawn from a specimen furnished' by him. 



Succinea grosvenorii, Lea. — Shell obliquely ovate, striate, 

 somewhat transparent, straw-yellow, and thin ; spire exserted ; sutures 

 very much impressed ; whirls four, convex ; aperture nearly round, and 

 rather large ; outer lip expanded ; columella bent in and twisted. Diam. 



