58 RISSOIDA. 
erystallina, Pfr. l. vu. No. 77, and Melania spinifera,, Adams, P. 
Bost, S. III, 1851, Jamaica; fide Shut. §c., var. 1. = A, anthracina, 
Mighels, P. B. 8. 1845, = P. Jamaicensis, Adams, = P. cisternicola, 
Morelet; fide v. Martens, 1873 = erystallina = candeana — cisternt- 
cola = ornata. 
10 Guadaloupe ; ex e. Prof. W. Newcomb (sent as “ A. candeana”). 
2 Jamaica ; ex “ Linnea” (as “A. candeana, Orb.”). 
1 Portorico ; ex Mr. G. Schneider. 
14, Amnicola (Pomatopyrgus) ornata. 
Amnicola ornata, Morelet, Test. nov. IT, 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. I, 1840, No. 77, Cuba; Conch.« 
Cab. IT, pl. X, fig.7, 8 ; fide Fischer, 1860, A. coronata Pfr., var, inermis. 
2 Guadaloupe; 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. B. Adams, P. Boston Soc. III, 1851, Jamaica ; 
A, coronata, var. fide Shut., &e. 
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. I, 1865, and Smithsonian Mise. Coll. TIL, 1865, type Amni- 
cola rowelli, Tryon ; genus of subfam. Fluminicolina, fide Clessin 1880. 
Not in the Museum collection. 
Genus FLUMINICOLA, Stimpson. 
Smithsonian Mise. Coll. VII, 1865, type Pal. nuttalliana, Lea: 
of subfam. Fluminicolina, fide Clessin, 1880. engane 
