Zoological Society. 205 



conicd, umbilicatd, fused, cinyulis granorum distantium monili- 

 formibus, interstitiis profiindti sulcatis, sulcis subl(svibus longi- 

 tudinaliter striatis ornatd; columella ad basin trisulcatd, dente 

 parvo acuto instruetd ; labro tetiui, intus sidcato. 

 Hab. Roebuck Bay, North Australia {Bring). 



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

 ded, albd, imperforatd, cinguUs subgranosis distantibus ornatd, 

 in anfractu idtimo septem, interstitiis costidis longitudinalibus 

 eleganter clathratis; cohmelld tubercido parvo terminatd ; labro 



Hab. Guidulman, island of Bohol, rocky ground, GOfathoms {H. C). 



3. MoNonoNTA TRiciNGTJLATA, A. Adams. M. testd globoso- 

 conoided, umbilicatd, rubente, albo et fusco variegatd, cingulis 

 parvulis granorum ornatd; suturd canalicidatd ; anfractibus 

 convexis, carinis tribus transversis prominentibus cinctis ; um- 

 bilico profundo ; cohmelld ad basin tuberculo parvo terminatd; 

 labro expanso, tenui, intus leevi. 



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



4. MoNODONTA PHiLiPPiNA, A. Adams. M. testd globoso- 

 conicd, perforatd, fused nigro punctatd; cingidis granulatis i7i- 

 cequalihis ornatd, interstitiis clathratulis ; umbilico parvo; 

 columelld tubercido parvo terminatd; labro intus sidcato. 



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

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

 thoms {H. C). 



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

 ded, umbilicatd, fused, costellis transversis imbricatis, interstitiis 

 clathratis sculptd ; anfractibus valde rotundatis ; umbilico in- 

 fundibuliformi ; columelld subrectd, basi tuberculo terminatd; 



labro margine crenulato. /tt n\ 



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

 Mus. Cuming. 



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

 conoided, subperforatd, crassd, albd, cingidis transversis nodulo- 

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

 tellis longitudinalibus foveolatis 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 EXiGtTA, A. Adams. M. testd parvd, conoided, 

 ' umbilicatd, albidd fusco variegatd, cingulis transversis granulosis 



interstitiis longitudinaliter liratis ornatd; anfractibus parum 

 convexis, idtimo subangulato ; umbilico recto, dente valido acuto 

 terminatd; labro intus sulcato. 

 Hab. Japan {Siebold). 



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

 umbilicatd, rubrd, cingulis transversis granorum moniliformibus 



