PLEUROTOMA.— Plate XXXVIII. 



The white-knobbed Pleurotoma. Shell ovately tur- 

 reted, gibbous in the middle, whorls angulated at the 

 upper part, tubereulatcd at the angle, transversely 

 granosely ridged ; blackish-brown, tubercles white. 



Reeve, Pro. Zool. Soc, 1846. 



Hab. ? 



The white tubercles stand out in prominent relief upon 

 the dark brown ground. 



Species 353. (Mus. Cuming.) 

 (Magnified to twice its size.) 



Pleurotoma scarabyEUS. Pleur. testa obeso-ovatd, spird 

 brevi, apice elevato ; lavigatd, spird apiceni versus obso- 

 lete hexagonali ; castaneo-fuscd, anf radii ultimo zona 

 subobscurd lutescerite ciugulatd, apice albo. 



The black-beetle Pleurotoma. Shell stoutly ovate, 

 spire short, apex raised, smooth, spire obsoletely 

 hexagonal towards the apex ; dark chesnut brown, 

 last whorl encircled with a narrow yellowish zone ; 

 apex white. 



Reeve, Pro. Zool. Soc, 1846. 



Hab. Honduras; Dyson. 



This interesting little species from Honduras may be 

 recognised without difficulty. 



Species 354. (Mus. Gray.) 

 (Magnified to three times its length.) 



Pleurotoma margaritifera. Pleur. testa subfusiformi, 

 liris subiilibus creberrinte reticulata, canali leviter 

 recurvo, sinu lato ; albidd, aurantio-fusco pallide tes- 

 sellatd. 



The pearly-looking Pleurotoma. Shell somewhat 



fusiform, very closely reticulated with fine ridge 

 canal slightly recurved, sinus broad ; whitish, faintl 

 tessellated with orange brown. 



Gray, MSS. (private cabinet). 



Hab. ? 



Peculiarly closely reticulated. 



Species 355. (Mus. nost.) 

 (Magnified to three times its length.) 



Pleurotoma d/Edala. Pleur. testa subfusiformi, anfrai 

 tibus longitudinaliter tenuicostatis, interstitiis tram 

 versim creberrime elevato-striatis, labro-incrassato ; a 

 hidd, fuscescente pallidissime tincld. 



The neatly-made Pleurotoma. Shell somewhat fus 

 form, whorls longitudinally finely ribbed, interstiei 

 transversely very closely elevately striated, lip thiol 

 ened ; whitish, very faintly tinged with light brown 



Reeve, Pro. Zool. Soc, 1846. 



Hab. ? 



Suture rather deeply impressed. 



Species 356. (Mus. nost.) 



Pleurotoma obtusa. Pleur. testa oblougd, spird brev 

 ■usculd, obtusd, anfractibus rotundis, obtuso-costati 

 transversim tenuiliratis, labro incrassato, sinu lato 

 lutescerite. 



The obtuse Pleurotoma. Shell oblong, spire rathi 

 short, obtuse, whorls round, obtusely ribbed, tran: 

 versely finely ridged, lip thickened, sinus broad ; pal 

 yellow. 



Reeve, Pro. Zool. Soc, 1846. 



Hab. ? 



A peculiarly obtuse depressed spire. 



