CIRCE. 



Plate X. 



Species 44. (Fig. a, b, c, Mus. Cuming.) 



Circe Arabica. Circ. testa ovata vel oblique orbiculari, 

 postice subquadratd, crassd, fidvd ant ccendencente- 

 albd, rufo-fusco obscure biradiatd et pmwtato-aspersd, 

 concentrice irregulariter eallose lirato-striatd. 



The Arabic Circe. Shell ovate or obliquely orbicular, 

 posteriorly somewhat square, thick, fulvous or bluish- 

 white, obscurely two-rayed and dot-sprinkled with 

 red-brown, concentrically irregularly callously ridge- 

 striated. 



Venus Arabica, Chemnitz, Conch. Cab. vol. ii. p. 224. pi. 

 301. f. 1968-70. 

 Oytherea Arabica, Lamarck. 

 Circe Arabica, Gi'ay. 



Ilab. Eed Sea; Madagascar. 



Variable in form, but mostly distinguished by a dot- 

 sprinkled colouring. 



Species 45. (Fig. a, b, c, Mus. Cuming.) 



Circe lextiginosa. Circ. testa ovald vel oblongo-omtd, 

 crassd, albidd, griseo et ferriiyiiieo-fusco varie lentif/i- 

 nosd, concentrice rude corruyalo-liratd, liris in medio 

 interdum obsoletis. 



The freckled Circe. Shell ovate or oblong-ovate, 

 thick, whitish, variously freckled with grey and rust- 

 brown, concentrically rudely wrinkle-ridged, riilges 

 sometimes obsolete in the middle. 



Venus lentiijinosa, Chemnitz, Conch. Cab. vol. ii. p. 233. 

 pi. 202. f. 1963, 1964. 

 Oytherea Pfeifferi, Philippi. 

 Circe liturata, Gi'ay. 

 Circe leutiginosa, Deshayes. 



Hab. Ked Sea ; Indian Ocean. 



This species varies greatly in form, colour, and sculp- 

 ture. The three specimens selected for illustration repre- 

 sent its extremest variations. 



Species 46. (Mus. Cuming.) 



Circe pdlchra. Circ. testa oblongo-ovatd, crassd, con- 

 vexd, postice subangustd, violaceo-yrised, ustulato-cas- 

 taneo late biradiatd, medio Iceviijatd, ad lutera corru- 

 gato-striatd. 



The beautiful Circe. Shell oblong-ovate, thick, cou- 

 vex, posteriorly rather narrow, violet-grey, broadly 

 two-rayed with burnt-chestnut, smooth in the middle, 

 wrinkle-striated at the sides. 



Deshayes, Pro. Zool. Soc. 1853, p. 6. 



CgtUerea elegans, Sowerby (not of Kocli). 



Ilab. Ked Sea. 



Tiie colouring of this species is strongly marked ; if per- 

 manent, it is highly characteristic. 



Species 47. (Mus. Cuming.) 



Circe abbreviata. Circ. testa rotundato-ovatd, antice 

 abbreviatd, fnhescenle-lacted, ferrugineo-riifo sparsim 

 Hiidatd, concentrice undique regulariter liratd et striata. 



The shortened Circe. Shell rotundately ovate, short- 

 ened on the anterior side, fulvous creain-colour, spa- 

 ringly waved with rust-red, concentrically regularly 

 ridged and striated throughout. 



Cijtherea abbreviata, Lamarck, Anim. sans vert. vol. vi. 

 p. 333. 

 Circe abbreviata, Deshayes. 



Hab. ? 



This passes very close to the variety of C. lentiginosa, 

 represented above it at Pig. 45 i5. 



Species 48. (!Mus. Cuming.) 



Circe elliptica. Circ. testa elliptico-ovatd, postice sub- 

 quad rata, falvescente-spadiced, livido-griseo linctd,pur- 

 pjureo-castaneo sparsim maculatd, iwibonibus carneo- 

 tinctis, ad latera lirato-corrugatd. 



The elliptic Circe. Shell elliptically ovate, poste- 

 riorly somewhat square, fulvous bay, tinged with livid 

 grey, spai-ingly blotched with purple chestnut, umboes 

 flesh-tinged, wrinkle-ridged at the sides. 



Cgtherea elliptica, Sowerby, Thes. Conch, vol. i. p. 645. 

 pi. 135. f 174, 175. 

 Circe Callipijga, var., Deshayes. 



Hab. ? 



This shell and the shell represented at Plate VIIL Fig. 

 31, appear to me to confirm Mr. Sowcrby's vicw,_that it is 

 a species distinct from C. Calliptjga. 



October, 1SG3. 



