PlIYSA.— Plate VI. 



flattened, last whorl very large, posteriorly obtusely 

 subangular, tumid, a little attenuated in front; 

 aperture elongated, outer lip sinuated, inner lip 

 thick, broad ; cohuiiellar Ibid tortuous, strong. 



H. Adams. Proc. Zool. Soc. 



Ilnh. Port Essington. 



secies 40. (Mus. Brit.) 



Species 45. (Mus. Brit.) 



Phvsa iietekostropiia. Phy. testd ovato-subfusiformi, 

 fuk-a, opacd, spird breviusculi'i, aamiinata, anfruc- 

 tibus paucis, parvis, rotundis ; ultimo unfractu 

 inflato, brevipost columdlamsubexeavato; aperlura 

 marjnd, semiovatd, intus aured, propc marQinem 

 castaneo fasciatd ; columella elomjatd, fire recta. 

 The heterostkophe Physa. Shell ovate-subfusiform, 

 fulvous, opaque, spire rather short, acuminated, 

 whorls few, small, rounded ; last whorl inflated, 

 short, a little hollow behind the columella ; aper- 

 ture large, semi-ovate, inside aureous, banded 

 with chestnut near the margin, columella elongated, 

 nearly straight. 

 Say. Haldenian's .Monograph. 

 Hab. Pittsburgh, Pennsylvania. 



Physa spicul.\ta. Phy. tcstd rlongatd, ant/xstd, /».~rr-- 

 cinerascenti, roseo-falvo nebulatd, nitciili : ■■'piid 

 productd, attenuatd, acuminaid ; apcrtuni (iii:/iisfd, 

 semioratd, plied columellari tenui. 



TuE SPIKED Physa. Shell elongated, narrow, ashy- 

 brown, clouded with fulvous pink ; shining ; spire 

 produced, attenuated, acuminated; aperture narrow, 

 semiovate; columellar fold thin. 



MoriELET. .' 



Hab. .' 



Species 47. (Mus. Brit.) 



PuYSA SoWEliBYANA. Phy. tcdd ohlomjo-ovatd, politd, 

 obscure succined ; spird elecatd, acimdnald ; ultiina 

 anfractu subovato ; columelld tenui, leviter torluosd. 



Soweeby's Phtsa. Shell oblong-ovate, polished, dull 

 amber, spire elevated, acuminated; last whorl 

 nearly oval ; columella thin, slightly tortuous. 



D'Oruigny. 



Hab. Jamaica. 



Much more inflated than Physa yncttlala, but not 



so much so as others of similar form. 



