CIRCE. 



Plate IX. 



Species 30. (Mus. Cuming;.) 



Circe fluctuata. Circ. testa globo.w-cordntd, tcmdcidil, 

 turr/idd, albidd, rvfo-fiisco pi-ope uml/ones pallidi reti- 

 cula.td, undique coiiceniri.ee dense filo-slriatd. 



The waved Circe. Shell globosely heart-shaped, rather 

 thin, swollen, whitish, faintly reticulated near the 

 uuiboes with red-brown, concentrically densely thread- 

 striated thoughout. 



C/jtlicreaJliictiiata, Sowerby, Thes. Conch, vol. i. p. 03-i. 

 pi. 136. f. 185, 186, 

 Dionejlttctiiata, Deshayes. 



Ilab. St. Helena. 



A small thread-striated swollen globose shell, partaking 

 of the generic characters both of Bione and Circe. 



Species 37. (.Mus. Cuming.) 



Circe Manill.E. Circ. testa oIAiqiui cordatd, tiirgidd, 

 postice Jiexiioso-attennatd, albidd, coiweittrice dense 

 filo-striatd, liinuld ampla. 



Tue Manilla Circe. Shell obliquely heart-shaped, 

 swollen, posteriorly flexuously atteniuxted, white, 

 concentrically densely thread-striated, lunule large. 



Cijtlierea Maniltfe, Sowerby, Thes. Conch, vol. i. p. 63-i. 

 pi. 136. f. ISO, 181. 

 Bione Manilta, Deshayes. 



Hab. JIanilki, Island of Luzon, Philippines ; Cuming. 



Allied to the preceding species, but with the posterior 

 side flexuously attenuated. 



Species 38. (Mus. Cuming.) 



CiRCE RUDIS. Circ. testd oblique cordatd, turgidd, ful- 

 vescenle-idbd, ferrngineo-rnfo tinctd et radiatd, con- 

 centrice teuue Jilo-striatd, striis in medio plus minus 

 obsoletis. 



Tue rude Circe. Shell obliquely heart-shaped, swollen, 

 fulvous wiiite, stained and rayed with rust-red, con- 

 centrically finely thread-striated, striae more or less 

 obsolete in the middle. 



Venus rudis, Poll, Test. utr. Sieil, vol. ii. p. 40. pi. 20. 

 f. 15, 16. 

 Cytherea Venetiana, Lamarck. 



Dione rudis, Deshayes. 

 Ilab. ilediterranean. 



The thread-like striae of this species are comparatively 

 obsolete in the middle of the shell towards the umboes. 



Species 39. (Mus. Cuming.) 



Circe varians. Circ. tesld subohlongo-ovatd, antice cor- 

 datd, postice snbproductd, tenui, venlricosd, ftdves- 

 cente-lacted, maculis ferrugineo-rufis radiatd, lunuld 

 et area ligamenti vtaculatis, concentrice dense filo- 

 striatd. 



The varying Circe. Shell rather oblong-ovate, an- 

 teriorly heart-shaped, posteriorly rather prodvieed, 

 thin, ventricose, fulvous cream-colour, rayed with 

 rust-red spots, lunule and ligamentary area spotted, 

 concentrieally densely thread-striated. 



Cytherea varians. Wood, Ind. Test. Supp. pi. 15. f. 33. 

 Cytherea rubiginosa, Phiiippi. 

 Dione varians, Deshayes, 



Ilab. ? 



This and the three preceding species repi'csent by their 

 alHnity to Bione lata on the one side and Circe sulcatina 

 on the other, the connection between the two genera. 



Species 40. (Fig. a, b, JIus. Cuming.) 



Circe sulcatina. Circ. testa trigono-cordatd, plus mi- 

 nus turgidd, solidiusculd, fulvescente-lacted, castaneo- 

 rnjo varie pictd, medio lavigatd, ad latera corrugato- 

 striatd. 



The finely-gkooveu Circe. Shell triangularly heart- 

 shaped, more or less swollen, rather solid, fulvous 

 crcam-eolour, variously painted with chestnut-red, 

 smooth in the middle, wrinkle-striated at the sides. 



Cytherea sidcutina, Lamarck, Anim. sans vert. vol. vi. 

 f. 308. 

 Circe sulcatina, Deshayes. 



Ilab. Philii)pine IsUuuls ; Cuming. 



Extremely variable in painting, which is sometimes dis- 

 posed in rays sometimes in concentrically wMved lines. 



October, 1863. 



