CIRCE. 



Plate YI. 



Species 33. (Fig. a, b, c, Mas. Cuming.) 



Circe a;quivoca. Ciix. testa oblique ooalii, compressius- 

 cida, ad latus podlcuni subtruncatd, fideescente-alhd, 

 ciitereo-fiisco uiidatd ant varie thictd, veiSKS mari/hiem 

 plenmque reticiilato-maculatd, coneentrice rude rn- 

 goso-liratd, antice jmsticeque valide divaricatim pli- 

 catd. 



The equivocal Circe. Shell obliquely ovate, rather 

 compressed, slightly truncated on the posterior side, 

 fulvous white, waved or variously stained with ash- 

 brown, generally reticulately spotted towards the 

 margin, concentrically rudely wrinkle-ridged, strongly 

 divaricately plicated on the anterior and posterior 

 sides. ^ ) 



Fentis eequivoca, Chemnitz, Conch. Cab. vol. if. p. 339. jil. 

 203. f. 1980. 

 Circe eequivoca, Deshayes. 

 Circe traiisvermria , Deshayes. 



Uab. Philippine Islands ; Cuming. 



The divaricate plications of this prettily painted species, 

 crossing the concentric ridges nearly throughout, give the 

 shell a crisply granular appearance. 



Species 3.3. (Fig. a, b, c, d, Mus. Cuming.) 



Circe divaricata. Circ. testa oblonffo-ovali, ad latus 

 posticum oblique pruducld vel attcnuatu, convexd, iii- 

 terdum gibbosiusculd, crassd, fulvescente-albd, cinereo 

 et rufo-castaueo vurie anyidato-muculatd, maculis in- 

 lerrupte radiantibus, coneentrice irretjulariter obtuse 

 Uratd, undique valide divaricatim plicatd, ad decnssa- 

 tionein plus minus conspicue grcmulatd. 



The divaricate Circe. Shell oblong-oval, oblicpiely 

 produced or attenuated on the posterior side, convex, 

 sometimes rather gibbous, thick, fulvous white, va- 

 riously angularly blotched with ash and reddish- 

 chestnut, blotches interruptedly radiating, concentri- 

 cally irregidarly obtusely ridged, strongly divaricately 

 plicated throughout, more or less conspicuously gra- 

 mdated at the crossing. 



Venus divaricata, Chemnitz, Couch. Cab. vol. vi. p. 317. 

 pi. 30. f. 316. 



Ci/therea divaricata, Lamarck, 

 Cytherea testudinalis, Lamarck. 

 Venus discors, Schroter. 

 Circe divaricata. Gray. 



Uab. Red Sea; Philippine Islands. 



The four specimens of this well-known species here 

 figiu-ed tolerably represent the range of its numerous va- 

 rieties. It may be regarded as the type of the divaricately 

 plicated forms of the genus. 



Species 34. (Fig. a, b, Mus. Cuming.) 



Circe DISPAR. Circ. testa oblongo-ovaU., compressiusculd, 

 fidvesceute-albd, n/aculis rufo-uurantiis vel purpuras- 

 centibus subprofuse marmoratd, coneentrice irregula- 

 riter rude Uratd, divaricatim plicatd, plicis posticis 

 multo validioribus. 



The unlike Circe. Shell oblong-oval^ rather com- 

 pressed, fulvous white, rather profusely mottled with 

 reddish-orange or purple spots, concentrically irregu- 

 larly rudely ridged, divaricately plicated, posterior 

 plaits much the stronger. 



Venus dispar, Chemnitz, Conch. Cab. vol. ii. p. 330. pi. 

 303. f. 1981, 19S3. 

 Cytherea muscaria, Lamarck. 

 Cytherea pulicaris, Lamarck. 

 Cytherea dispar, Hanley. 

 Circe dispar, Gray. 



Uab. Red Sea. 



One of the most obvious characteristics of this species 



is its mottled painting of reddish-orange or purple dots. 



Species 35. (Mus. Cuming.) 



Circe NUMMULINA. ftVc. testa oblique trigono-orbicn- 

 lari, subcunei/ormi, crassd, fulvescenfe-lacted, lunidd 

 et area ligamenti Uvido-purpurascentibus, coneentrice 

 tenuiUratd, versus umbones subcompressd et indistincte 

 divaricatim plicatd. 



The coin-like Circe. Shell obliquely triangularly orbi- 

 cular, somewhat wedge-shaped, thick, fulvous cream- 

 colour, lunule and ligamentary area livid purple, con- 

 centrically finely ridged, compressed and faintly diva- 

 ricately plicated towards the umboes. 



Cytherea numnmlina, Lamarck, Anini. sans vert. vol. vi. 

 p. 331. 

 Circe numnmlina. Gray. 



Ilab. Central America. 



Of an obtuse wedge-like form, rather obsoletely sculp- 

 tured, and but slightly coloured. 



October, 1863. 



