CYCLOTUS 



Plate IV. 



Species 16. (Mus. Cumiug.) 



Cyclotus SEMISTRIATUS. L'ycl. ttstd profundi subaii- 

 guste umbilicatd, depresso-conicd, albidd, rufesceiile 

 tinctd, auraHtio-fiisco intKrditm vittatd, anfractibus 

 subaiigiistis, supenie spiraliter Unit'ts. 



'L'he half-striated Cyclotus. Shell deeply rather 

 narrowly umbilicated, depressly conical, white, tinged 

 with red, sometimes filleted with orange-brown, 

 whorls rather narrow, spirally ridged round the npper 

 part. 



Cyclostoma semistriatiim, Sowerbv, Pro. Zool. See. 1843, 



p. 29. 



Cyclotus neiimtriatus. Gray. 

 Hab. India. 



Of quite a different type from the Western species of 

 the genus. The whorls have neither concentric stria; nor 

 wrinkles, but are sculptured rouud the upper part with 

 spiral ridges, while the lower part is smooth. 



Species 17. (Fig. a, b, Mus. Cuming.) 



Cyclotus Fortunei. Cycl. testd subampliter profundi 

 umbilicatd, fulvescente-fiixcd, sericed, interdnm ohscnri 

 fasciatd, anfractibm angnstis, rotuiidatis, conceiitrici 

 temmtriatis. 



Fortune's Cyclotus. Shell rather largely deeply um- 

 bilicateil, fulvous-brown, silky, sometimes obscurely 

 banded, whorls narrow, rounded, concentrically finely 

 striated. 



Cyclodoma Fortunei, Pfeiffer, Pro. Zool. Soc. 1852, p. 146. 



Cyclotus Fortunei, Pfeiffer. 

 Hab. Shanghai, China ; Fortune. 



A small silky shell of narrow rounded whorls, with 

 much of the aspect of a Helix. 



Species 18. (Fig. a, b, Mus. Cuming.) 



Cyclotus irregularis. Cyd. testa modici profundi 

 umbilicatd, subdepressd, crassd, pallide fulvescente- 

 castaned, infra perip/ieriam saturate fasciatd, anfrac- 

 tibus ad suturas concavo-impressis, striis elevatis con- 

 centricis uiidique dense funiculatis. 



The irregular Cyclotus. Shell moderately deeply 



umbilicated, rather depressed, thick, pale fulvous- 

 chestnut, dark-banded below the periphery, whoiis 

 concavely impressed at the sutures, densely corded 

 throughout with raised concentric strife. 



Cyclostoma (Cyclotus) irregularis, Pfeiffer, Pro. Zool. Soc. 

 1855, p. 117. 



Hab. Costa Rica, Central America. 



Pale in colour, of rather solid growth, beautifidly corded 

 throughout with raised concentric strife. 



Species 19. (Fig. a, b, Mus. Cuming.) 



Cyclotus volvuloides. Cycl. testd modici profundi 

 umbilicatd, subdepressd, albidd, purpureo-violaceo oh- 

 scure fasciatd, anfractibus subaugustis, rotundatis, spi- 

 raliter liratis, ad peripheriam lavigatis, labro culloso- 

 reflexo. 



The whorl-like Cyclotus. Shell moderately deeply 

 umbilicated, slightly depressed, wliitish, obscurely 

 banded with purple-violet, whorls rather narrow, 

 rounded, spii-ally ridged, smooth at the periphery, 

 lip callously reflected. 



Cyclostoma volvuloides, Sowerbv, Thcs. Couch, p. 162. 

 pi. 31b. f. 313, 314. 

 Cyclotus volvuloides, Pfeiffer. 

 Hab. ? 



This is a very characteristic species of the Eastern type 

 represented by the smaller Indian C. semistriatus. It has 

 no concentric sculpture, the ridges being of spii-al growth. 



Species 20. (Fig. a, b, Mus. Cumiug.) 



Cyclotus Bogotensis. Cycl. testd modici profundi um- 

 bilicatd, conico-depressd, vividi vireule varii fasciatd, 

 anfractibus ad suturam coucavo-impressis, deinde ro- 

 tundatis, striis concentricis imdiqiie dense funiculatis. 



The Bogota Cyclotus. Shell moderately deeply um- 

 bilicated, conically depressed, bright green, variously 

 banded, whorls concavely impressed at the suture, 

 then rounded, densely corded throughout with con- 

 centric stria;. 



Cyclostoma Bogotense, Pfeiffer, Pro. Zool. Soc. 1855, p. 

 117. 



Hab. New Granada. 



August, 1863. 



