Zoological Society. 205 



canted, umbilicatd, fused, dngulis granorum distantium monili- 

 fonnibus, interstitiis profunde sulcatis, sulcis sublcetibus longi- 



tudinaliter striatis ornatd ; columella ad basin frisidcafd, dente 

 parvo acuta instructu ; labra tenui, intus sulcata. 

 Hab. Roebuck Bay, North Australia (Dring). 



2. MoNODONTA CLATHRATA, A. Adams. 31. testa ovato-conoi- 



ded, alba, imperforatd, cingulis subgranosis distantibus ornatd, 

 in anfractu ultimo septem, interstitiis costulis longitudinalibus 

 eleganter clathratis; columella tubercula parvo terminatd; labro 

 intus sulcata. 

 Hab. Guidulman, island of Bohol, rocky ground, 60 fathoms (5". C). 



3. MoxoDONTA TRiciNGTJLATA, A. Adams. M. testa globaso- 

 canaided, umbilicatd, rubente, alba et fusca variegatd, cingulis 

 parvulis granorum ornatd; sufurd canaliculatu ; anfractibus 

 convexis, carinis tribus transversis prominentibus cinctis ; um- 

 bilica profunda ; columelld ad basin tubercula pareo terininatd ; 

 labra expansa, tenui, intus Iceci. 



Hab. Malacca; Singapore, fine sand, 6 fathoms {H. C). 



A. MoNODONTA PHiLippiXA, A. Adams. J/, testa globoso- 

 canicd, perforata, fused nigra punctata ; cingulis granulatis in- 

 ^qualibus ornatd, interstitiis clathra talis ; umbilico parvo; 

 columelld tubercula parvo terminatd ; labro intus sulcata. 

 Hab. Puerto Galero, island of Mindoro, in coarse sand, 9 fathoms ; 

 Bolinao, province of Zambales, island of Luzon, sandy mud, 10 fa- 

 thoms (H. C). 



5. MoNODONTA EDENTXJLA, A. Adams. M. testd ovato-conoi- 



ded, umbilicatd, fiscd, costellis transversis imbricatis, interstitiis 

 clathratis sculptd ; anfractibus valde rotundatis ; tonbilico in- 

 fundibuliformi ; columelld subrectd, bast tuberculo terminatd; 

 labra margine cremdato. 

 Hab. Catbalonga, island of Samar, sandy mud, 6 fathoms {H. C). 

 Mus. Cuming. 



6. MoNODONTA FOVEOLATA, A. Adams. M. testa globoso- 

 conoided, subperfaratd, crassd, alba, cingidis transversis nodulo- 

 sis subdistantibus (in anfractu ultimo septem), interstitiis cos- 

 tellis longitudinalibus faveolatis ornatd ; columelld dente minuto 

 terminatd ; labro intus crasso et lirato. 



Hab. Lord Hood's Island, on pearl oysters, 8 to 10 fathoms {H. C). 

 Mus. Cuming. 



7. MoNODONTA EXiGUA, A. Adauis. M. testa parvu, conaided, 

 umbilicatd, albiddftsco variegatd, cingulis transversis granulosis 

 interstitiis longitudinaliter liratis ornatd ; anfractibus parum 

 convexis, ultima subangulato ; umbilico recto, dente valido acuto 

 terminatd ; labro intus sulcata. 



Hab. Japan (Siebald). 



8. MoNODONTA RUBRA, A. Adams. M. testa globoso-conoided, 

 umbilicatd, rubrd, cingulis transversis granorum moniliformibtis 



