CANCELLARIA. 



Plate XYI. 



Species 73. (Fig. a, b, c, d, Mus. Cuming.) 



Cancellaeia semipelhicida. Can. testa, ovato-ventri- 

 cosd, ienuicida, mimitmmie vmbilicatd, spird h-evitm- 

 culd, acuta, suturd profundi impressd, anfractibus su- 

 periie rotundatis, longitvdinaliter oblique plicato-cos- 

 tatis, traimversim tenuiliratis ; fulvescente, subpellu- 

 cidd ; aperturd ovaid, ad basin ailenuatd, columella 

 triplicatd. 



The semitransparent Cancellaeia. Shell ovately 

 veutricose, rather thin, very minutely umbilicated, 

 spire rather short, sharp, suture deeply impressed, 

 whorls rounded at the upper part, longitudinally ob- 

 liquely plieately ribbed, transversely finely ridged; 

 fulvous, subpellucid ; aperture ovate, attenuated at 

 the base, columella three-plaited. 



Adams and Reeve, Moll. Voy. Samarang, p. 43. pi. 10. 

 f. 3 and 3 a. 



Hab. Sooloo Sea. 



A light inflated shell, with the suture deeply impressed, 



peculiarly attenuated at the base. 



to the remarkable C. triffonostoma, the whorls being con- 

 voluted in the same peculiar maaaer. 



Species 74. (Fig. a, b, Mus. Cuming.) 



Cancellaeia antiquata. Can. tedd ovatd, perampliter 

 et profunde umbilicatd, spird turritd, anfractibus ad 

 suturam late declivi-excavatis, ad awjtdum carinatis 

 et muricatis, deinde acute plicato-costatis, lavigatis ; 

 albd ; aperturd parvd, irlcjond, colmiwlld subobsolcie 

 bipUcald. 



The axtiucated Cancellaeia. Shell ovate, very 

 largely and deeply umbilicated, spire turreted, whorls 

 broadly slantingly excavated at the suture, keeled 

 and prickled at the angle, then sharply plieately 

 ribbed, smooth ; white ; aperture small, triangular, 

 columella rather obsoletely two-plaited. 



Hinds, Moll. Voy. Sulphur, p. 43. pi. 12. f. 17, IS. 



Hab. New Guinea (di'edged from coarse sand, at the depth 

 of twenty-two fathoms) ; Hinds. 



This elegant little species has the largest umbilicus next 



Species 75. (Fig. a, b, Mus. Cuming.) 

 Cancellaeia tenuis. Can. testa ovatd, tenuiculd, an- 

 ffuste profundi umbilicatd, spird subpyramidali, an- 

 fractibus ad suturam anguste declivi-excavatis, longi- 

 tudinaliter laminato-costatis, transversim tenuiliratis ; 

 fulvescente; aperturd ovatd, ad basin atlennatd, colu- 

 melld triplicatd. 

 The thin Cancellaeia. Shell ovate, rather tliin, nar- 

 rowly deeply umbilicated, spire subpyramidal, whorls 

 narrowly slantingly excavated at the suture, longitu- 

 dinally laminately ribbed, transversely finely ridged ; 

 fulvous ; aperture ovate, attenuated at the base, co- 

 lumella three-plaited. ,^ 

 (Vdams, MS., Mus. Cuming. ' ' 



Hab. ■ ? 



A light semitransparent fulvous sheU, chiefly distin- 

 guished by the thin laminar structure of the ribs. 



Species 76. (Fig. a, b, Mus. Cuming.) 



Cancellaeia Puepueifoemis. Can. testd oblongo- 

 ovatd, imperforatd, spird exsertd, subobtusd, anfracti- 

 bus plano-convexis, longitudinaliter obsolete plicalis, 

 transversim liueari-sulcatis ; fuscescente-albu ; aper- 

 turd ovatd, columella arcuatd, triplicatd. 



The Purpura-shaped Cancellaeia. Shell oblong- 

 ovate, impei-forated, spire exserted, rather obtuse, 

 whorls slightly convex, longitudinately obsoletely pli- 

 cated, transversely linearly grooved ; brownish-white ; 

 aperture ovate, columella arched, three-plaited. 



Valenciennes, Kiener, Coquilles vivantes, Cancellaria, 

 No. 27. 



Hab.- ? 



A simple oblong-ovate shell, without umbilicus or any 

 depression at the suture. 



December, 1856. 



