30 



M A C T R A, 



Linn, names. Gm. Engl. names. Synonyms. Habitat. 



20 achatina variegated C.ll,*.200,/.1957-8. 



21 solida 



3259 strong 



22 solidissima 3259 thick 



[solida, var. /3.] 



23 subtruncata abrupt 



24 australis 



25 Listeri 



26 tenuis 



27 Boysii 



\_Mya.-] 



3261 Lister's 



thin 

 Boys's 



Tranquebar. 



L.t.253,f.87-8. C.6,*.23, 

 /. 229-30. P.B.Z. 4, 

 *.54,/.l.&*.55,/.2. D. 

 t.Ql. M.p.92. Britain, &c. 



C.10,U70,/.1656. N. America. 



L.t.253,f.86. P.B.ZA, 

 t.55,f.l.M.p.93. Suppl. 

 t.27,f.l. L.T.8,t.l, 

 f.ll. Britain. 



3221 southern C.6,*.3,/. 19,20. New Zealand. 



L. t. 253,/. 88. C.6,t.3, 

 f.2l. E.M.t.ZtfJ.l. 

 D.t.Q^f.l. M.p.96. 



Mouths of rivers, Britain, &c. 



M.p.572,t.l7,f.7. Britain. 



M.p.98,t.3j.7. L.T.6, 



28 triangularis triangular M.p.99,t.3,f.5. 



29 minutissima minute M.Suppl.p.37. 



30 glauca 3260 red-rayed C.6,t.23,f. 232-3. EM. 



J.256,/1. D.t.125. M. 

 p.57l. Spain. Britain ? 



31 pellucida 3260 transparent C.6,.24,/.234. Guinea. 



32 fragilis 3261 brittle C.6,.24,/.235. M.p.95, 



t.5,f.l. \M.dealbata.~\ 



Britain, &c. 



33 rugosa 3261 rugged C.6,*.24,/.236. Mediterranean. 



