P li Y S A. 



Plate III. 



Species 17. (Fig. a, b, Mus. Brit.) 



Pjiys.\ tabul.\t.\. Phy. (cstd injlatd, solidd, hrevi, 

 fusco-subviridi ; spird obtusd, breviitsculd, anfrac- 

 tibits subquadratis, prope suturam planulatis ; an- 

 fraclii ultimo mat/no, rotundathii ani/iilo ; apcrlurn 

 latd, iiitits pallidd, antire siibaciimiiiatd, labia in- 

 teriio nilido, plied columellari crassd, tortuosd. 



The TAiiULATKD Phtsa. Shell inllated, solid, short, 

 greenish brown; spire obtuse, rather short, 

 whorls rather square, flattened near the suture; 

 last whorl large, roundly angular ; aperture wide, 

 pale within, slightly acuminated within, inner lip 

 strong, columeHar Ibid thick, tortuous. 



GniLi. ? 



Uab. New Zealand. 



Kemarkable for the flatness of the wliorls above the 



Species 18. (Fig. a, i, Mus. Brit.) 



PllYSA Carinata. Phi/, testa subci/lindricd, ienui, 

 pallide stramined, postice latiiisculd ; spird bi-evis- 

 simd, truncatd, anfractibus superne carinatis, supra 

 carinam planulatis; ultimo anfractu antice sub- 

 angustato ; aperturd oblongd, autice acuminatd, 

 plied columellari tenui, leviter tortud. 



The keeled Physa. Shell subcylindrical, thin, pale 

 straw, posteriorly rather wide ; spire very short, 

 truncated, whorls keeled above, flattened above 

 the keel; last whorl anteriorly rather narrow, 

 aperture oblong, anteriorly acuminated, colu- 

 meUar fold slightly tortuous. 



H. Adams. Proc. Zool. Soc. 



Uab. Boyne River. 



Not so flat at the top as Physa Eeevii, Ad. and Ang., 

 having one or more whorls inserted. 



Species 19. (Mus. Brit.) 



Pin'SA i\tegra. Phi/, suliovatd, niigusti'dsculd, politd, 

 fidco-corned, pellucidd ; spird exsei-td, anfractibus 

 cunvexis, distiiictis ; ultimo anfractu cylindraceo ; 

 aperturd subelongatd, intus prope marginem parvum 

 iiicrasmtd ; jilicd columellari breviuscidd, tortud. 



TuE INTEGRAL PuvsA. Shell subovate, rather narrow, 

 polished, fulvous, horn-coloured, pellucid ; spire 

 produced, whorls convex, distinct ; last whorl 

 cylindrical, aperture rather lengthened, a little 

 thickened within near the margin, columellar i'uld 

 rather short, tortuous. 



IIaldk.man. Monograph. 



Ilab. Mohawk Bay. 



Species 20. (Mus. Brit.) 



Physa trunxata. Ph;i- tiMd tcmii, turbinatd, subriride 

 fused : spird pinna, laid, truncatd, anfractibiis 

 carinutis ; aperturd niignsid, iiitiis pallidHpurpureo- 

 7-osed, antice mbdttiituatd, plied columellari teiivi, 

 valdi; tortuosd. 



The truncated Physa. Shell thin, turbinated, 

 greenish-l)r(jwn ; spire Hat, broad, truncated, 

 whorls keeled, aperture narrow, pale purple rose- 

 coloured within, a little attenuated anteriorly, 

 columellar fold thin, very tortuous. 



H. Adams. Proc. Zool. Soc. (not Ph. truncata, Ferr.) 



Ilah. Birdekin lliver. 



This, like Physa Reevii, Ad. and Aug., has the spire 

 quite flat, but the aperture tends to narrow towards 

 the anterior termination. 



Species 21. (Mus. Brit.) 



Phtsa Newcombl Phy. testa ovato-subglobnsd, aureo- 

 straminen ; spird e.esertd, aeuniinatd, anfractihui 

 rotundis, distiiictis; uitiino anfractu iiiagno, brtciics- 



Febru.ary, 1873. 



