PLEUROTOMA. 



Plate XXVI. 



(Figures magnified. 



Species 226. (Mus. Belclier.) 



'leurotoma rubiginosa. Pleur. testa oblongd, anfracti- 

 bus senis svhrotundatis, transversim striatis ; suturdsim- 

 plici; aperturd brevi, ovatd ; labro intus lam, ; canali 

 brevissimo ; corneo-fuscd 



[he rusty Pleurotoma. Shell oblong, whorls six in 

 number, somewhat rounded, transversely striated ; 

 suture simple; aperture short, ovate; lip smooth 

 within ; canal very short ; homy, brown. 

 Clavatula rubiginosa, Hinds, Moll. Yoy.. Sulphur, p. 22. 

 pi. 7. f. 5. 



Hal. Straits of Malacca (from mud at the depth of seven- 

 teen fathoms) ; Hinds. 



A brown horny shell with a small aperture and rather 

 large sinus. 



Species 227. (Mus Belcher.) 



Pleurotoma micans. Pleur. testa ovatd, elongatd, corned, 

 nitidd, anfractibus octonis, co&tulatis, costulis subacutis, 

 albidk, obUquis, superne prqpe suturam evanidis ; an- 

 fractus ultimi dorso ecostulato ; aperturd parod, ovali ; 

 labro temui, acuta, intus Icevi ; canali brevi. 



The glittering Pleurotoma. Shell ovate, elongated, 

 horny, whorls eight in number, ribbed, ribs small, 

 rather sharp, whitish, oblique, fading towards the 

 suture ; back of the last whorl smooth ; aperture 

 small, oval; lip thin, acute, smooth within; and 

 short. 



Clavatula micans, Hinds, Moll. Voy. Sulphur, p. 23. 

 pi. 7. f. 11. 



Hab. Gulf of Papagayo (from mud at the depth of four- 

 teen fathoms); Hinds. 



A pale shining shell with oblique ribs. 



Species 228. (Mus. Belcher.) 



Pleurotoma donata. Pleur. testa ovatd, subelongatd, 

 rosed, anfractibus octonis, costulatis ; costulis subacutis, 

 dbliquis, allidis, superne prope suturam evanidis ; an- 

 fractus ultimi dorso ecostulato ; aperturd parod, ovali; 

 labro tenui, acuta, intus laid; canali brevi. 



The bestowed Pleurotoma. Shell ovate, elongated 



rose colour, whorls eight in number, ribbed, ribs 

 small, rather sharp, oblique, whitish, fading towards 

 the suture ; back of the last whorl smooth ; canal 

 short. 



Clavatula donata, Hinds, Moll. Voy. Sulphur, p. 22. 

 pi. 7.f. 7. 

 Hab. North coast of New Guinea (from mud at the depth 

 of twenty-two fathoms) ; Hinds. 



The ground colour of this shell is 

 the ribs are whitish. 



ruddy pink whilst 



Species 229. (Mus. Metcalfe). 



Pleurotoma Metcalfiana. Pleur. testa ovatd, crassius- 

 culd, transversim creberrime elevato-striatd, longitudi- 

 naliter apicem versus sulobsolete sulcata ,• alia, maculis 

 rnfo-fnscis subquadratis fasciatim pictd ; canali brevi. 



Metcalfe's Pleurotoma. Shell ovate, rather thick, 

 transversely very closely elevately striated, longitudi- 

 nally somewhat obsoletely grooved towards the apex; 

 white, painted with bands of reddish-brown spots ; 

 canal short. 



Reeve, Pro. Zool. Soc., 1845. 



Hob. ? 



I dedicate this unique and valuable shell to William 

 Metcalfe, Esq., in acknowledgment of the obbgation I feel 

 under to that gentleman for his unwearied and successful 

 exertions in search of the minute species of the genus. 



Species 230. (Mus. Belcher). 



Pleurotoma quisqualis. Pleur. testa fusiformi, acumi- 

 nata, nitidissimd; anfractibus octonis, superne l<tviga- 

 tis, inferne' costulatis ; costulis brevibus obliquis, acutis, 

 lineis albis smuosis longitudinalibus instructs ; aperturd 



ovatd ; canali brevi, effuSO, ri-cnrvo. 



The like Pleurotoma. Shell fusiform, acuminated, 

 very shining, whorls eight in number, smooth at the 

 upper part, ribbed at the lower, rib9 small, short, 

 oblique, sharp ; furnished with white sinuous longitu- 

 dinal lines; aperture ovate; canal short, effused, 

 recurved. 



November IS 15. 



