THE NAUTILUS. 143 



356. SUCCINEA SILLIMANI Bid. Nevada, California. 



357. SUCCINEA HIGGINSI Bid. Put-in Bay, Lake Erie. 



358. SUCCINEA RETUSA Lea. Canada to Montana, southward to 

 Georgia. Includes S. ovalis GId. not Say, S.forsheyi Lea, S.wilsoni 

 Lea, S. calumttensis Calkins, S. peoriensis Wolf. 



358a. SUCCINEA RETUSA MAGISTER Pils. Mississippi valley from 

 Tennessee to Minnesota : Michigan. 



358b. SUCCINEA RETUSA DECAMPI Tryon. Michigan. 



359. SUCCINEA NUTTALLIANA Lea. Washington to California. 



360. SUCCINEA HAYDENI W. G. Binn. Nebraska to Utah. A 

 form minor W. G. B. is recorded from Great Slave Lake. 



361. SUCCINEA HAWKINSI Baird. Lake Osovoos, B. C. 



V 



(Neritostomce.~) 



362. SUCCINEA OBLIQUA Say. Canada to Montana, south to 

 Nebraska, Arkansas and Georgia. 



362a. SUCCINEA OBLIQUA TOTTENIANA Lea. Canada to Middle 

 States. 



(Campestres.) 



363. SUCCINEA CAMPESTRIS Say. Georgia and Florida. S. in- 

 flata Lea is a synonym. 



363a. SUCCINEA CAMPESTRIS UNICOLOR Tryon. New Orleans, 

 La. 



364. SUCCINEA LUTEOLA Gld. Texas; western Florida to the 

 Keys. 



365. SUCCINEA CONCORDIALIS Gld. Lake Concordia, Texas. 



366. SUCCINEA GROSVENORII Lea. Louisiana, Mississippi and 

 Texas north through Kansas and Nebraska to Great Slave Lake ; 

 Colorado, Montana and Utah. Synonyms are S. lineata Binn. not 

 DeKay, mooresiana Lea, greeri Tryon. Forms elongata (Kremml- 

 iug, Colo.) and rufescens Ckll. (Lee Co., Texas) are described. 



(-Licence.) 



367. SUCCINEA AVAR A Say. Canada to Georgia, west to Minn., 

 Mont., Utah, Texas, California. Forms alba Ckll., Custer Co., Col. 

 wardiana Lea, vermetu Say, cnmpncta Ckll., major Binn. are de- 

 scribed. 



368. SuccrxEA AIJREA Lea. New York, Ohio. S. haleana'Lea, 

 Alexandria, La., is probably synonymous. 



369. SUCCINEA VERRILLI Bland. Anticosti Island. 



