C A N C E L L A R I A. 



Plate XI. 



Species 49. (Fig. a, b, c, Mus. Cuming.) 



Cancellaria Mitbiformis. Can. tedd fmiformi-elon- 

 (jaid, imperforatd, ad basin attenuaio-recurvd, sjiird 

 lurritd, anfractibiis supenie decUvi-anffidalis et cou- 

 cavis, liris nodulatis imdique dense decuuaiis, liris 

 spiraUhus ad labrum elevaiis et serratk ; rufo-fvml 

 aut nigricante; aperturd swbangmtd, colmnelld uni- 

 pUcald. 



The Mitre-shaped Cancellaria. Shell fusiforraly 

 elongated, in:iperforate(l, attenuately recurved at the 

 base, spire turreted, whorls slantingly aiigulated and 

 concave at the upper part, closely decussated through- 

 out with noduled ridges, the spiral ridges raised and 

 .serrated at the lip ; red-brown or blackish ; apertuve 

 rather narrow, columella one-plaited. 



SovvERBY, Pro. Zool. Soc. 18.32, p. 51. 

 Cancellaria tmipUcata, Sowerby. 



Hah. Panama (dredged in sandy mud) ; Cuming. 



Distinguished from all other species of the genus by its 



elongated Mitra-WVe. form and serrated lip. 



Species 50. (Fig. a, b, Mus. Cuming.) 

 Cancellaria macrospira. Can. testa acumiiiaio-lur- 

 ritd, semipellucidd, minute umbilicatd, spird elongald, 

 hie illic varicosd, anfractibus ad suturam angmte 

 pldno-excavatis, deinde convexis, liris subtilibus cre- 

 Hulatis decimaiis; pellucido-albd ; aperturd minutd, 

 labro varicose incrassato, labro coltmellari expanse, 

 plicis tribiis, (enuibus. 

 The large spire Cancellaria. Shell acuminately 

 turreted, semipellncid, minutely umbilicated, spire 

 elongated, here and there varicose, whorls narrowly 

 flatly excavated at the suture, then convex, decus- 

 sated with fine crenulated ridges ; transparent white ; 

 aperture very small, lip varicosely thickened, colu- 

 mellar lip expanded, plaits three, thin. 

 Ada,\is and Reeve, Moll. Voy. Samarang, p. 41. pi. 10, 



f. 2. 

 I/ab. Coast of Borneo, China Sea ; Belcher. 



An extremely delicate transparent white shell, remark 

 al)le for its narrow elongated form of convolution. 



Species 51. (Pig. a, b, Mus. Cuming.) 

 Cancellaria trigonostoma. Can. testa eleganter py- 

 ramidali-turbinatd, Scalariformi, perampliter perspec- 

 tive umbilicatd, spird perattenuatd, anfractibus acute 

 trigonis, spiraliter obsolete liratis, ad angulum exte- 

 riorem spinosis ; roseo-albd; aperturd pnrvd, trigmid, 

 columelld biplicatd, plicis tenidbas. 

 The triangular-mouth Cancellaria. Shell elegantly 

 pyramidally turbinated, Scalaria-shapcd, very largely 

 perspectively umbilicated, spire much attenuated, 

 whorls sharply triangular, spirally obsoletely ridged, 

 spined along the outer angle; pink-white; aperture 

 small, triangular, columella two-plaited, plaits three. 

 BelpUnula trigonostoma, Lamarck, Anim. sans vert. vol. ix. 

 p. 88. 



Cancellaria trigonostoma, Deshayes. 

 Le Bordstrappe, Favanne. 

 Hai. Ceylon; Kiener. 



This very remarkable species is convoluted with one 

 side of each triangular whorl so attached to that of the 

 preceding as to form a cone enclosing a large deep per- 

 spective umbilicus. 



Species 52. (Fig. a, b, c, Mus. Cuming.) 

 I Cancellaria clavatula. Can. testa elongato-turritd, 

 \ ad basin recurvd, imperforatd, spird acuta, hie illic 



valide irregulariter varicosd, anfractibus plano-con- 

 j vexis, obtiise longitudinaliter costatis, spiraliter stri- 



atis; rufo-fiiscd, alio maculatd et fasciatd ; aperturd 

 parvd, columelld biplicatd. 

 The club Cancellaria. Shell elongately turreted, re- 

 curved at the base, imperforated, spire sharp, here 

 and there strongly irregularly varicose, whorls flatly 

 convex, obtusely longitudinally ribbed, spirally stri- 

 ated ; red-brown, blotched and banded with white ; 

 1 aperture small, columella two-plaited. 



I Sowerby, Pro. Zool. Soc. 1833, p. 52. 

 1 Hab. Panama (dredged from a sandy muddy bottom, at 

 I seven fathoms) ; Cuming. 



I Cliiefly distinguished, amongst other peculiarities, by 

 its strong irregular deposit of varices. 



November, 1856. 



