AMPULLARIIDA, 11 
30. Ampullaria (Pomus) crassa. 
Ampullaria crassa, Swainson, Zool. Ill. I, Vol. IIT, 1822, Loc. ? ; Reeve, 
Jig. 5, Brazil. 
1 Ecuador; ex c. Dr. H. Dohrn. 
Agrees with Reeve’s fig, 5, only a little smaller and colu- 
mella less straight. 
var. oblonga. 
Near Reeve’s fig. 106, as “ A, crassa, oblong convoluted var.” 
1 Brazil; ex c. Prof. W. Newcomb (sent as “ 4. spixt”’). 
4 Amazon Rv. ; ex c. Prof. W. Newcomb (as “4. nubila’’). 
Alt. 224, diam. 19 mil—lImperforate, intermediate between 
Reeve’s figs. 5 and 106 as regards convexity of the whorls and 
height of the spire. I cannot detect the slightest difference 
between Dr. Newcomb’s specimens, and I believe they must 
have come from one locality; they do not in the least resemble 
A. nubila or A. spiai! 
31. Ampullaria (Pomus) plate. 
Awpullaria Plate, Maton, Trans. Lin, Soc., 1809, R. Plata ;=A. naticoides, 
Orb. 1835 ; sect. Asolene. 
1 Rio Plata; exc. A. Morelet, Esq. 
32. Ampullaria (Pomus) pulchella. 
Ampullaria pulchella, Anton, Verz. Conch. 1839, [sine Hab.] ;=A. 
roissyt, Orb. 1839, 
8 Rio Plata; exc, A. Morelet, Esq. 
2 Rio Plata; ex c. Dr. H. Dohrn (as “ 4. plate”), 
33. Ampullaria (Pomus) elegans. 
Ampullaria elegans, d’Orbigny, Voy. Amér, Mérid., 1839, Bolivia, §c.;= 
A, peristomata, Orb. 1835. 
4 Bolivia; ex c. G. Nevill, Esq. 
The above are all decollated. 
1 Brazil; ex c. Prof. W. Newcomb (as 4. spixti’’), 
