MANGELIA. 



Plate VI. 

 (Specimens, except Figs. 37 and 39, magnified to two and a half times tlieir natural length.) 



Sjiecies 37. (Mus. Belcher.) 



Mangelia oryza. Mang. testa, attemiatd, acuminata,, 

 IcBvigatd, nituld, hexagone plico-codulatd ; anfractibus 

 septenk ; alhidd. 



The eice-grain Mangelia. Shell attenuated, acumi- 

 nated, smooth, shining, hexagonally phcately ribbed ; 

 whorls seven in number ; whitish. 



Hinds, MoU. Voy. Sulphur, p. 20. pi. 9. f. 4. 



Hab. North coast of New Guinea (from twenty-two 

 fathoms, mud) ; Hinds. 



The figure of tliis species is of the natm-al size. 



Species 38. (Mus. Cuming.) 



IMangelia pessulata. Mang. testa cylindraceo-oblongd, 

 spird breviusculd, longitiidinaliter eximie suboblique 

 costatd, coslarum interstitiis suMilissime striatis ; nined. 



The barred Mangelia. Shell rather cylindrically 

 oblong, spire rather short ; longitudinally delicately 

 rather obliquely ribbed, interstices between the ribs 

 very finely striated ; snowy white. 



Eeeve, Pro. Zool. Soc, 1846. 



Hab. Phdippine Islands ; Cuming. 



Thfe seulptm-e of this shell is of a most delicate character. 



Species 39. (Mus. Belcher.) 



Mangelia cinnamomea. Mang. testd attewuatd, nitidd, 

 cinnamomed, albifasdatd ; anfractibus senis, plico-cos- 

 tnlatis, transversim leevissime striatis. 



The cinnamon Mangelia. Shell attenuated, smooth, 

 cinnamon-coloured, wliite-banded ; whorls six in num- 

 ber, phcately ribbed, transversely obsoletely striated. 



Hinds, MoU. Voy. Sulphur, p. 25. pi. 9. f. 1. 



Hab. North coast of New Guinea, Straits of Macassar, 

 and Malacca (from five to twenty-two fathoms, mud); 

 Hinds. 



Of the natural size, from Mr. Hinds' figure. 



(Species 40. Mus. Forbes.) 



Mangelia rigida. Mang. testd ovatd, longitudinaliter 



fortiter tuberculato-costatd, transversim subtilissime 



striatd; fuscescente. 

 The rigid Mangelia. Shell ovate, longitudinally 



strongly tubercularly ribbed, transversely very finely 



striated ; light brown. 



Eeeve, Pro. Zool. Soc, 1846. 

 Hab. Jigean Sea ; Porbes. 



I cannot identify this with any of the Mediterranean 

 species of Pleurotoma hitherto described. 



Species 41. (Mus. Cuming.) 



Mangelia elegans. Mang. testd oblongd, spird brevius- 

 culd, acuminatd, anfractibus superne angulatis, longi- 

 tudinaliter costatis, costis angustis, ad angulum mucro- 

 natis, costaruni interstitiis pulclm'rime elevato-striatis ; 

 lutescente-albd, exilissime fusco-zonatd. 



The elegant Mangelia. Shell oblong, spire rather 

 short, acimiinated, whorls angulated at the upper 

 part, longitudinally ribbed, ribs narrow, pointed at 

 the angle, interstices between the ribs very beautifidly 

 elevately striated ; yellowish white, very faintly zoned 

 with brown. 



Reeve, Pro. Zool. Soc, 1846. 



Hab. Island of Miudoro, Philippines ; Cuming. 



An interesting species most delicately sculptiu'ed. 



Species 43. (Mus. Cuming.) 



Mangelia lineata. Mang. testd ovatd, spird acuminatd ; 

 concentric^ obtuso-costatd, Icevigatd ; carneo-fuscescente, 

 lineis saturatloribus tmdique cingulatd. 



The lineated Mangelia. Shell ovate, spire acumi- 

 nated ; concentrically obtusely ribbed, smooth ; fleshy 

 brown, encircled throughout with hues of a darker 

 tint. 



Eeeve, Pro. Zool. Soc, 1846. 



Hab. ? 



The transverse lines which characterize this species are 

 somewhat faintly indicated. 



Species 43. (Mus. Cuming.) 



Mangelia planilabrum. Mang. testd fusiformi, utrin- 

 que acuminatd, lavissimd, anfractibus superne depressis, 

 longitudinaliter costatis ; labro planulato, supra snban- 

 gulato ; cinereo-pmpurascente, albi-zonatd. 



The flat-lipped Mangelia. Shell fiisiform, acuminated 

 at both ends, very smooth, whorls depressed round 

 the upper part, longitudinally ribbed ; hp flattened, 

 slightly angidated above ; ashy purple, zoned with 

 white. 



June, 1846. 



