POBTLO KI \ 



ve\. \\iili linr -piral ribi, 



month oval, li| and c< "III lnel l:i lliin. 



in specie* Devon. to < fcrb.j / P ''i,il. 



? Genoa i;il LBDOPLE1 i; I 



Conical. height Mini diamet.-r :ili.,ut 

 convex. rapidly enlanriiiLi, tin- laM IM..IV than hai' 

 spirally riMu-d ; aperlmv Iran- 



what rallnus. curvc.l. and tlii.-kun-.l In-low. I,'. BOUDiA, dl I. 

 ( 'a 



Qentu CREMNOCONCHUB, Blanford, ;- 



Shell jM-rtl.rat.-. turl>inat( !;. -.irally riltlw-.i. 



suhovatf. niarj-in .-iniplc. roliiini-lla *i-an-rly callous. OpefCQlmn 

 partly calraiv.>n>. 



Animal small, with short, thick pn. !>.-<!-. and l"n_ 

 with eyes mi swrllinir-- at tlu-ir -h'Tt and ninnl.-.| R| 



extremities mantle inaririn finely ereiudat. d. I h-ntitinii -imil. 

 Littni'iiin. FUIUH! in ///<//'/. iijH.n r.ek- wetted hy fresh \\. 

 EhrHADBENSIS, r.lant'. 



FirM d(-<Til)ed Bl , Ulanti.nl: pivocmpi, .1 in ich- 



thyology. 



m TECTAMU8, STalen 



Usually inijM-rtnratr. tnrliinated 01 -iil>c..niral. till- ' mii- 



i-icate, iieriphery tVe<|U.-ntly aiiirular or hian^ular: ajM-rtur. t- 

 within, columella eall-.n^. -ul.drntate at the las'. 

 cispiral. with a ln-oad ini'inliraiiMU-. Imnlrr. The ft] 



lie length of the sln-11. according to 

 Quoy. 



T i- KGOD1 B, Linn. 



It M I aU. 



compelled to niiitr \\ith this L r riij). as synonym-. 



and / 3 rainaon, 1 s I": their el ln-im: ^' 



alile. and -hadin- int" : 



FBobgenoi BRAOHTTRKMA, M 



I ha\ d thi- t'-mi in < i HT p. 1 !:',), IMII 



M-ml)lance to the piv-.-n: -loiij) i- al-. very mark' 



