V U L U M 



Plate VI. 



Species 25. (Fig. a, b, Mus. Cuming.) 



OvuLUM FRUMENTUM, Ov. testa angusle pyriformi, ro- 

 sacm-albd, extremitatihiis alkuiiali prodiidis, Jorso 

 nndique Iransversim inciso-driato, aperlurd angiisln, 

 columella liatid plicatd. 

 The rye Ovuluji. Shell narrowly pear-shaped, piiikish- 

 white, extremities attenuntely produced, back trans- 

 versely incisely striated throughout, aperture narrow, 

 columella not plaited. 

 SowERBY, Spes. Conch, pt. i. p. 7. f. 37. 



IM. ? 



A very characteristic species, neatly sculptured through- 

 out, with the extremities rather more than usual protluced. 



Species 2G. (Fig. a, b, Mus. Taylor.) 



OvuLUM BULL.\TUM. Oo. testd obloiigo-pi/riformi, albidd, 

 auraii tio-fitscescmte p'lllid? tiiictd, dorso iindiqite Irans- 

 versim iiiciso-slrinlo, si/perm'' gibboso, biferne atteiiiiato, 

 labro vnricuso-rejlexo, ad extremilales pecidiariter sub- 

 qtiadralo-producto, columelld siipenie callosd, in/erne 

 e.vcavald, vix plicatd. 



The bubble-shaped Ovulum. Shell oblong-pyril'orm, 

 whitish, faintly tinged with reddish-brown, back trans- 

 versely incisely striated throughout, gibbous at the 

 upper part, attenuated at the lower, lip varicosely re- 

 flected, peculiarly somewhat squarely produced at the 

 extremities, columella callous al the upper part, exca- 

 vated at the lower, scarcely plaited. 



Adams and Eeeve, Moll. Voy. Samarang, p. 23. pi. G. 

 f. n a,b. 

 Calpuriiii-1 biiUalns, Adams. 



Hub. Caramata Passage, near Singapore; Belcher. Gotto 

 Islands, Japan (at the depth of seventy-one fathoms) ; 

 Adams. 



A very striking and wcll-dcfiucd species, in which the 

 lip is peculiarly squared and produced at the extremities. 



Species 27. (Fig. a, h, Mus. Cuming.) 



Ovulum dorsuosum. Ov. testd angiisli pyriformi,albidd, 

 durso superne gibboso, iyiferiie ailenuato, exlremitatibus 

 modice canaUcidatu-prodiictis, columella haud plicatd. 



The backed Ovulum. Shell narrowly pear-shaped, 

 white, back gibbous at the upper part, attenuated at 

 the lower, extremities moderately canaliculately pro- 

 duced, columella not plaited. 



Hinds, Moll. Voy. Sulphur, p. 47. pi. 10. f. 3, 4. 

 Calpurnus dorsnosits, Adams. 



Hab. Straits of Malacca (in mud, at the depth of nine 

 fathoms); Belcher. Gotto Islands, Japan (at the 

 depth of forty-eight fathoms) ; Adams. 



Of a somewhat slenderly angled form, with the extre- 

 mities produced into a short eliannel. 



Species 28. (Fig. «, b, Mus. Taylor.) 



OvULUjr STRIATULUM. Ov. tesld ai/giiste pyriformi, ro- 

 saceo-albd, dorso nndique Iransversim inclso-strialo, 

 ivferne constricto-altenuato, labro varicuso, planalo, ex- 

 tremitatibus subcaualicuhilo-produclis, culumelld exca- 

 vald, vix plicatd. 



The i-'inely-striated Ovulum. Shell narrowly pear- 

 shapeil, pinkish-while, back transversely incisely stri- 

 ated throughout, constrictedly attenuated at the 

 lower, lip varicose, flattened, extremities somewhat 

 canaliculately produced, columella excavated, scarcely 

 plaited. 



SowERBY, Spes. Couch, pt. i. p. 7. p- 38. 

 Calpuru'is striotulus, Adams. 



Hab. Philip[)iue Islands ; Cuming. Loochoo Islands ; 

 Belcher. Tsusaki, Japan (at the depth of fifty-tive 

 fathoms) ; Adams. 



Greatly resembling the preceding species in general form, 

 but the back, instead of being smooth, is incisely striated 

 throughout, while the extremities are not so obviously 

 channelled. 



Species 29. (Fig. a, b, Mus. Cuming.) 



Ovulum scitulum. Ov. testd subpyrifonni-oblongd, pel- 

 lucido-albd, dorso lavigato, labro varicoso, planalo, ad 

 extremitates quadralo, columelld superne callosd, haud 

 plicatd. 



The pretty Ovulum. Shell somewhat pyriformly-ob- 

 long, transparent white, back smooth, lip varicose, 

 flattened, squared at the extremities, columella callous 

 at the upper part, not plaited. 



AmpJdperas scitula, Adams, Pro. Zool. Soc. 1854, p. 131. 

 Radius scitulus, Adams (Pro, Liun. Soc. 1863). 



Hab. New Caledonia. Tsu-Sima, Japan (at the depth of 

 twenty-five fathoms) ; Adams. 



The squaring of the lip towards the extremities imparts 

 a more than usually excavated character to tlie aperture. 



March, IS Go. 



