V U L U M . 



Plate V. 



Species 20. (Fig. a, b, Mus. Taylor.) 



OvuLUM BULLA. Oo. testd occild, rolundato-injiaid, sor- 

 dide albd, ad basin consti'ictd, labro iitcricssato, copiose 

 denticulato, extremitatibm arcuuto-proditctis, coliimdld 

 siiperne calloso-liratd, plica ubhreviato-coidortd. 



The bubble Ovuluji. Shell ovate, rotundately inflated, 

 dull-white, constricted at the base, lip thickened, co- 

 piously denticulated, extremities arcuately produced, 

 columella callously ridged at the upper part, plait 

 shortly twisted. 



Adams and IIeeve, Moll. Voy. Samarang, p. 21. pi. G. 

 f. 5 a, b. 

 Ampliijieras bulla, Adams. 



Hub. China Seas ; Belcher. Satauomosaki, Japan (at the 

 depth of fifty-five fathoms) ; Adams. 

 Chiefly distinguished by its rotundately inflated growth 



and curved aperture. 



Species 21. (Fig. a, b, Mus. Cuming.) 



OvuLUM CONCINNUM. Oo. tesld aur/ulalo-pijriformi, soli- 

 diusculd, dorso conspicue gibbom, ad basin coustricto, 

 labro incrassato, eximii denticulato, columelld superne 

 calloso-liratd, plica feri; obsoletd. 



The neat Ovuluji. Shell angularly pear-shaped, rather 

 solid, back conspicuously gibbous, constricted at the 

 base, lip thickened, faintly denticulated, columella 

 callously ridged at the upper part, plait nearly obso- 

 lete. 



Adams and Eeeve, JIoU. Voy. Samarang, p. 22. pi. 6. 

 f. 8 a, b, c. 

 Calpuruus coccinetis, xVdams. 



Hab. Isle of Capul, Philippines. Mino-Siraa, Japan (at 

 the depth of sixty-three' fathoms) ; Adams. 



A rather solid shell, very prominently angulaidy gibbous 

 on the back. 



Species 33. (Fig. a, b, Mus. Cuming.) 



OvuLUM PUNCTATUM. Ov. tcstd pytiformi, soUdiuscn- 

 Id, albd, auranlio-fusco subdistanter grandimaculatd, 

 dorso copiose inciso-slriato, exlremitaiibus subproduc- 

 tis, coluiuelld superne calloao-Uratd, plied fire obso- 

 letd. 



The DOTTED OvuLUM. Shell pear-shaped, rather solid, 

 white, somewhat distantly large-spotted with orange- 

 brown, back copiously incisely striated, extremities 

 rather produced, columella callously ridged at the 

 upper part, plait nearly obsolete. 



DucLos, Guerin, Mag. de Zool. 1838. 

 Amphiperas punctata, Adams. 



Hab. Philippine Islands ; Cuming. China Seas ; Belcher. 

 Gotto Islands, Japan (at the depth of seventy-one 

 fathoms) ; Adams. 



This species is distinguished from all others by its cha- 

 racteristic orange-brown spots. 



Species 33. (Fig. a, b, Mus. Cuming.) 



OvULUM ALABASTER. Ov. tesld subpijrifirnii-ovatd, pel- 

 lucido-albd, dorso transversini inciso-striato, exlremi- 

 taiibus subproductis, aperiurd curvatd, columelld su- 

 perne calloso-liratd, infirne exeavatd, vix plicatd. 



The ALABASTER OvuLUM. Shell somewhat pyriformly 

 ovate, transparent white, back transversely ineisely 

 striated, extremities rather produced, aperture curved, 

 columella callously ribbed at the upper part, exca- 

 vated at the lower, scarcely plaited. 



Ilab. Senegal. 



A colourless semitransparent species, approaching the 

 preceding in general form. 



Species 24. (Fig. a, b, Mus. Cuming.) 



OvuLUM Adamsii. Ov. testd ovatd, inflatd, albd, dorso 

 medio elevatiusculo, transversini inciso-striato, extremi- 

 tatibus subobtusis, labro modtce incrassato, aperiurd, 

 curvatd latiusculd, columelld vix plicatd. 



Adams's Ovulum. Shell ovate, inflated, white, back 

 rather elevated in the middle, transversely incisely 

 striated, extremities rather obtuse, lip moderately 

 thickened, aperture curved, rather broad, columella 

 scarcely plicated. 



Amphiperas marginata, Adams (not of Sowerby), Pro. Zool. 

 Soc. 1854, p. 130. 



Rab. New Caledonia ; Cuming. 



A delicate rather inflated bubble-shaped shell, elabo- 

 rately sculptured with engraved striae. 



March, 1865. 



