155 



20. POLYDONTA TURRIS, Phil. 



Trochus turris, Phil. Zeit. f. Make. 1846, July, p. 102. 

 Hab. ? 



21. PoLYDONTA INCARNATA, Phil. 



Trochus incarnatus, Phil. Zeit. f. Malac. 1846, July, p. 103. 

 Hub. Suez, Red Sea. 



22. PoLYDONTA IGNOBILIS, Phil. 



Trochus ignobilis, Phil. Zeit. f. Malac. 1846, July, p. 102. 

 Hab. ? 



23. PoLYDONTA PUSTULOSA, Phil. 



Trochus pustulosus, Phil. Kust. Couch. Cab. pi. 44. f. 6. 

 Hab. -? 



24. PoLYDONTA GiBBERTJLA, A. Adams. P. tcstd elevato-conicd, 

 in medio gibbosd, anfractu ultimo angustato ; albidd, lineis roseis 



fiammulatis radiatim pictd ; anfractibus subconvexis, cingulis gra- 

 nosis transversis ornatd, ultimo obtuse angulato ; basi convexi- 

 usculd, albd, fasciis roseis radiatim pictd ; centra excavato, umbi- 

 licum mentiente ; columella superne solutd, margins tuber culo-den- 

 ticulato ; labro intus lirato, inferne denticulate. 

 Hab. Philippiues. 



25. PoLYDONTA PALLiDULA, A. Adams. P. testd elevato-conicd, 



albidd, maculis luteolis pictd ; anfractibus planis, cingulis tuber- 

 culorum ornatd, tuberculis inferne in castas excurrentibus, basi 

 convexd, cingulis granosis ornatd, cavitate coiitartd umbilicum 

 simulante ; columelld superne solutd, margine tuberculato-dentato ; 

 labro intus lirato, inferni denticulato. 

 Hab. ? 



26. PoLYDONTA coRRUGATA, A. Adams. p. testd elevato-conicd, 

 albidd, rufa-fusco variegatd; anfractibus planius cutis, sulcis trans- 

 versis, sulcisque obliquis nodosa -reticulatis, inferne obliqui costa- 

 tis, castis nodasis ornatis ; basi planiusculd, in medio concavd, ex- 

 cavaid, umbilicum mentiente; columelld superne solutd, margine 

 tuberculato-dentato ; labro intus lirato, inferne denticulato. 



Hab. ? 



27. PoLYDONTA SQUAMiGERA, A. Adams. P. tcstd elato- 

 conicd, albidd, cinereo-viridi radiatim pictd ; anfractibus planius- 

 culis, cingulis granulorum tribus ornatis, inferne oblique costatis, 

 castis in spinis squamiformibus excurrentibus, basi plana striis 

 granosis, fasciisque rufa-viridibus ornatd, centra excavato umbili- 

 cum simulante, intus alba lineis elevatis cincto ; aperturd lineis 

 acutis elevatis, transversis infaucibus instructd. 



Hab. ? 



