175 
16. Monoponta Inconspicva, Phil. 
Trochus (Monodonta) inconspicuus, Phil. Kust. Conch. Cab. t. 43. 
12: 
Hate 
17. MonoponTa RuGuLosA, A. Adams. WM. testd ovato-conoi- 
ded, depressd, atro-fuscd, fasciis latis luteo-albis irregulariter 
pictd, cingulis rotundatis interruptis ornatd ; columelld basi 
bituberculatd, canali parallelo instructd, dente magno acuto ter- 
minatd ; labro duplicato, intus lirato. 
Hab. 2 
18. Monoponta crrcumcincta, A. Adams. WM. testd ovato- 
conoided, imperforatd, levi, nitidd, crassd, cingulis rubris albo 
viridt maculatis alternantibus pictd; anfractibus convezxis ; 
columelld basi tuberculatd, dente magno acuto terminatd ; labro 
duplicato, intus lirato. 
Hab. Island of Ticao, on the stones on reefs at low water (H. C.). 
19. MonopontTa TuBEeRCULATA, A. Adams. WM. testd ovato- 
conoided, imperforatd, crassd, viridescenti, cingulis tuberculo- 
rum oblongorum violaceorum ornatd ; anfractibus convezis; colu- 
melld basi trituberculatd, canali parallelo instructd, dente pro- 
minente acuto terminatd ; labro duplicato, intus lirato. 
Hab. 2 
Subgenus Arapasta, Gray. 
Operculum suborbicular, paucispiral. 
Aradasia, Gray, in Mrs. Gray’s Figures of Molluscous Animals, p. 90. 
—! Otavia, Cantr. 
20. Monoponta suucirerA, A. Adams. M. testd globoso- 
conicd, umbilicatd, fuscd, cingulis granorum distantium monili- 
Sormibus, interstitiis profundé sulcatis, sulcis sublevibus longi- 
tudinaliter striatis ornatd ; columelld ad basin trisulcatd, dente 
parvo acuto instructd ; labro tenui, intus sulcato. 
Hab. Roebuck Bay, North Australia (Dring). 
21. Monovonta cLaTHRaAtTA, A. Adams. WM. testd ovato-conoi- 
ded, alba, imperforatd, cingulis subgranosis distantibus ornatd, 
in anfractu ultimo septem, interstitiis costulis longitudinalibus 
eleganter clathratis; columella tuberculo parvo terminatd ; labro 
intus sulcato. 
Hab. Guidulman, island of Bohol, rocky ground, 60fathoms(H.C.). 
22. Monoponta TricineuLata, A. Adams. WM. testd globoso- 
conoided, umbilicatd, rubente, albo et fusco variegatd, cingulis 
parvulis granorum ornatd; suturd canaliculatd; anfractibus 
convexis, carinis tribus transversis prominentibus cinctis ; um- 
bilico profundo ; columella ad basin tuberculo parvo terminatd ; 
labro expanso, tenui, intus levi. 
Hah. Malacca ; Singapore, fine sand, 6 fathoms (H. C.). 
