58 IllSSOIDJE. 



crystallina, Pfr., I. c. No. 77, and Melania spinifera, Adams, P. 

 Bost. S. Illy 1851, Jamaica ; fide Shut. Sfc., var. s. = A. anthracina, 

 Mighels, P. B. S. 1845, = P. Jamaicensis, Adams, = P. cisternicola, 

 Morelet; fide v. Martens, 1873 = crystallina = candeana = cisterni- 

 cola = ornata. 



10 Guadaloupe ; ex c. Prof. W- Newcomb (sent as " A. candeana "). 

 2 Jamaica ; ex "Linnsea" (as "A. candeana, Orb."). 

 1 Portorico ; ex Mr. G. Schneider. 



14. Amnicola (Pomatopyrgus) ornata. 



Amnicola ornata, Morelet, Test. nov. II, 1851, Republic San Salvador ; fide 

 Fischer, 1860, = A. coronata, var. 



6 Guatemala [typical] ; coll. A. Morelet, Esq, 



15. Amnicola (Pomatopyrgus) crystallina. 



Paludina crystallina, Pfeiffer, Wiegm. Arch. 1, 1840, No. 77, Cuba-, Conch.- 

 Cab. II, pi. X,fig. 7, 8 ; fide Fischer, 1860, A. coronata Pfr., var. inermis. 



2 Guadaloupe j ex c. Prof. W. Newcomb (mixed with A. coronata). 

 1 Portories; ex Mr. G. Schneider. 



I cannot help thinking that Shuttleworth and others have con- 

 founded two distinct, though variable, forms, living together on 

 most of the West Indian Islands. 



16. Amnicola (Pomatopyrgus) Jamaicensis. 



Paludina jamaicensis, C. JB. Adams, P. Boston Soc. Ill, 1851, Jamaica ; 

 A. coronata, var. fide Shut., fyc. 



10 Jamaica; ex c. Dr. H. Dohrn. 

 7 Jamaica; ex c. Prof. W. Newcomb. 



I cannot bring myself to believe this a mere variety of A. 

 coronata. 



Genus COCHLIOPA, Stimpson. 



Am. J. Conch. 1, 1865, and Smithsonian Misc. Coll. VII, 1865, type Amni- 

 cola rowelli, Tryon ; genus of subfam. Fluminicolina, fide Clessin 1880. 



Not in the Museum collection. 



Genus FLUMINICOLA, Stimpson. 



Smithsonian Misc. Coll. VII, 1865, type Pal. nuttalliana, Lea ; genus 

 ofsubfam. Fluminicolince,fide Clessin, 1880. 



