PLEUROTOMA. 



Plate XXXYII. 



Species 335. (Mus. Belcher.) 

 (Natural size.) 

 iotoma papillaris. Pleur. testa oblongd, laevigata, 

 mfractibus rotundatis, obsolete tuberculato-eostatis, 

 pira? apice papilloso, aperturd breoi; put tide rosacea, 

 atiri Umbo intus rufeseente. 



papillary Pleurotoma. Shell oblong, smooth, 

 vhorls rounded, obsoletely tubercularly ribbed, apex 

 )f the spire papillary, aperture short ; pale pinkish, 

 idge of the lip tinged within with red. 

 Ma papillaris, Hinds, Moll. Voy. Sulphur, p. 22. pi. 7. 



Straits of Malacca (frorn seventeen fathoms mud) ; 



Hinds. 



:uliar in its colouring, and papillary apex. 



Species 336. (Mus. Belcher.) 

 (Natural size.) 

 rotoma casta. Pleur. testa attenuate fusiformi, 

 hagili, vitred, transversim sulcata, columella contortd ; 

 pallidc rosacea. 



chaste Pleurotoma. Shell alternately fusiform, 

 glassy, transversely grooved, columella twisted; faintly 

 tinged with pink. 



nella casta, Hinds, Moll. Voy. Sulphur, p. 25. pi. 7. 

 JO. 



Gidf of Nicoya, Central America (in twenty-three 

 fathoms, among mud) ; Hinds. 

 delicate and most elegantly formed shell. 



Species 337. (Mus. Gray.) 

 (Magnified to twice its length.) 

 DROToma lineolata. Pleur. testa subfusiformi-ob- 

 longd, longitudinaliter obtuse costatd ; albicante, lineis 

 fubtilissimis fuscescentibus cinq at at a. 

 fine-lined Pleurotoma. Shell somewhat fusi- 

 formly oblong, longitudinally obtusely ribbed; whitish, 

 encircled with very fine brown lines. 

 T, MSS. (private cabinet). 

 . ? 



his little species may be known by the fine hair lines 

 which it is encircled ; the ribs have not that granular 

 sarance represented in the figure. 



Species 33S. (Mus. Metcalfe.) 

 (Magnified to three times its length.) 



Pleurotoma scalpta. Pleur. testa pgramidaU-ovatd, lae- 

 vigata ant minutissime reUeulatd, aperturd brevi, sinu 

 distincto ; alba, lineis fuscis brevibus tessellatim pktd. 



The scratched Pleurotoma. Shell pyramidally ovate, 

 smooth or very minutely reticulated, aperture short, 

 sinus distinct ; white, tesscllately painted with short 

 brown lines. 



Reeve, Pro. Zool. Soc, 1847. 



Hob. ? 



Very significally tessellated with squares, each of four 



short parallel brown lines. 



Species 339. (Mus. Forbes.) 



(Magnified to three times its length.) 



Pleurotoma Forbesii. Pleur. testa turritd, anfraetUmt 

 rotundatis, longitudinaliter obtuse costatis, transversim 

 liratis, aperturd pared ; rufeseente-fuscd, liris satura- 

 tioribus. 

 Forbes' Pleurotoma. Shell tureted, whorls rounded, 

 longitudinally obtusely ribbed, transversely finely 

 ridged, aperture small, reddish brown, ridges of deeper 

 colour. 

 Hob. Paros, Grecian Archipelago ; Forbes. 



I have much pleasure in dedicating this little species to 

 Professor Edward Forbes, whose submarine researches 

 among the islands of the Grecian Archipelago, have af- 

 forded matter of so much interest and novelty. 



Species 340. (Mus. Cuming.) 



(Magnified to two and a half times its length.) 



Pleurotoma symmetrica. Pleur. testa ovoid, spird bre- 

 viusculd, anfractibus superne depressis, longitudinaliter 

 costatis costarum interstitiis subtilissimi elevato-stria- 

 tis ; lutescente, anfraetuum parte sujperiori alba. 



The symmetrical Pleurotoma. Shell ovate, spire 

 rather short, whorls depressed at the upper part, 

 longitudinally ribbed, interstices between the ribs very 

 finely elevately striated ; yellowish, upper part of the 

 whorls white. 



Reeve, Pro. Zool. Soc., 1846. 



Eab. ? 



A neat elegantly formed shell, partaking of the generic 



character of Mangelia. 



January 1.846. 



