RISSOIDA. 57 
7. Amnicola granum. 
Paludina grana, Say, J. Ae. Nat. Sci. II, 1822, Pennsylvania. 
40 Michigan; coll. W. A. Brown, Esq. 
8. Amnicola sayana. 
Amnicola sayana, Anthony ms., Haldeman, J. Ac. Nat. Set. Philad, VIII, 
1842, Cincinnati; = Cyclostoma cincinnatiense, Lea, P, Amer. Philos. 
Soe. 1840. 
30 Ohio; coll. Prof. W. Newcomb and W. A. Brown, Esq. 
The radula is very different from that of the type species, 
comp. Clessin, Mal. Bl. 1880! 
9. Amnicola badia. 
Amunicola badia, Gould, P. Boston Soc. ITI, 1848, BanksPen., New Zealand. 
14 Lake Ellmere, New Zealand; ex c. Dr. F. Stoliczka. 
2 New Zealand ; coll. J. Caldwell, Esq. 
10. Amnicola antipodarum. 
Amnicola antipodarum, Gray, Dieff. Travels, p. 241, 1850, N. Zealand ; 
Smith. Moll, Erebus and Terror, pl. 6 ; ? sp. of Pomatopyrgus. 
4 Lake Letitia, N. Zealand ; ex c. Dr. F, Stoliczka, 
11. Amnicola panamensis. 
Hydrobia Panamensis, Ancey [in litt.]. 
4, Panama ; ex c. C. F, Ancey, Esq. 
Subgenus POMATOPYERGUS, Stimpson. 
Amer, J. Con. I, 1865, and Smithsonian Mise. Coll. VII, 1855, type 
Melania corolla, Gould. 
12. Amnicola (Pomatopyrgus) corolla. 
Melania corolla, Gould, P. Boston, Soc. IT, 1847, N. Zealand ; = A. cumin- 
giana, Fischer, J. de C. 1859, N. Zealand; var. ? = A. salleana, Fischer, 
l.e., N. Zealand, 
2 Locality ?; ex c. G. Nevill, Esq. 
13. Amnicola (Pomatopyrgus) coronata. 
Paludina coronata, Pfeiffer, Wiegm. Arch. I, vol. VI, 1840, No. 76, Cuba ; 
= Paludestrina candeana, Orb., Moll. Cuba, 1841; var. ? = Paludina 
