SIGARETUS 



Plate II. 



Species G. (Fig-, ff, h, Mas. Cuming.) 



SlG.\RETUS Z0N.\LIS. S'uj. testd depressii auriformi, taini, 

 siihcorned, spird parvd, arifractibus subventricosis, spi- 

 raliter ohsolete striatis, concentrice detnv teniie cornr- 

 gatk ; lulescente-albd, obsnleti riifescenle-zonald. 



The zoned Sig.\retus. Shell depressly ear-shaped, 

 thin, ratlier hoi'iiy, spii'e small, whorls rather ventri- 

 cose, spirally obsoletely striated, concentrically densely 

 finely wi'inkled ; yellowish - white, ol)solete^y red- 

 zoned. 



Cryptndoma zoiialis, Quoy and Gairaard, Toy. de FAstro- 

 labe, vol. 2. p. 22]. pi. G6 bis, f. ] to 3. 



llab. South Australia and Tasmania. 



A light, transparent, horny shell, in which the zone of 



colour selected to characterize it is but faiutlv indicated. 



Species 7. (Fig- a, b, Mus. Cuming.) 

 SiG.\RETUs PL.\XULATL'S. S'iff. testd plaiw-aiiriformi, 

 spird iminersd, anfractibiis paritm convexis, spiraliter 

 ienuisiiiaiis, concenti-ice dense exilissime corriKjalh ; 

 albd, epidermide tenni Jlavescente iiidutd. 

 The flattened Sigaretus. SheU flatly ear-shaped, 

 spii'e immersed, whorls but little convex, spirally 

 finelv striated, concentrically, densely, vciy delicately 

 wrinkled; white, covered «ith a tliin yellowish epi- 

 dermis. 

 Recluz, Illus. Conch. Sig. p. 21. pi. 3. f. 4. 

 Ilab. Island of Luzon, Phili|)pines (in sandy mud, at a 

 depth of about ten fathoms) ; Cuming. Torres 

 Straits, North Australia. 

 The spire is in this species flatly immersed, the shell 

 being altogether very depressed, white, delicately sculp- 

 tiu'ed, covered with a thin yellowish epidermis. 



Species 8. (Fig. a, b, Mus. Cuming.) 

 Sigaretus Javanicus. Sir/, testd depresae orbicidari, 

 spird vi.v exscrtd, anfraetibiis regnlariier convexis, 

 concentrice plano-liratis, interstitiis incisis, concentrice 

 modice plicatis : rilbd, versus npicem livido-vinlaced. 

 The .Java Sigaretus. Shell depressly orbicular, spire 

 scarcely exserted, whorls reguhirlv convex, concentri- 

 cally flatly ridged, with the interstices incised, con- 

 centrically moderately plicated ; white, ],ivid-violet 

 towards the apex. 



Gray, Griffith's Cuv. Anim. King. pi. -il. f. 1. 



Siyaretas insciilptiis, Adams and Eeeve. 

 Hab. Java. Island of Burias, Philippines (in sandv mud. 



at the depth of four fathoms) ; Cuming. 



A broad, orbicular species, spirally finely flatly ridged 

 and incised, of a particularly pure white, coloured towards 

 the apex with livid-violet. 



Species D. (Fig. (t, b, Mus. Cuming.) 



Sigaretus latifasciatus. Sig. testd oblique ijlobosd. 



tenuictdd, spird parvn, parmn exsertd, anfraclu nltimo 



ventricoso, spiraliter lirato-striato, strih irregularilms. 



confertis, interstitiis incisis ; candidd. 

 The broad-banded Sigaretus. Shell obliquely globose. 



rather thin, spire small, but little exserted, last whorl 



ventricose, spirally ridge-striated, strise irregular. 



close-set, interstices incised ; white. 

 Adams and Reeve, Moll. Voy. Samarang, p. 2.t. pi. 13. 



f 11. 

 Hab. Eastern Seas. 



This species, of which JMr. Cuming possesses two or 

 three specimens, approaches nearest to the ^'\ est Afriran 

 S. Neritoide/is, but it is of a lighter whiter substance, and 

 more ventricose in form. 



Species 10. (Fig. a, b, ^Mus. Cuming.) 



Sigaretus Delessektii. Sig. testa depresse anrifur^ni, 

 spird parvd, snbiminersd, anfradibns plano-coiivexis, 

 spiraliter plaiio-Iiratis, liris plus minusve obsoletis, 

 concentrice rude plicalo-corriigatis ; einereo-albd, li- 

 vido-fusrescente obscure inter ruptefasciatd.aptce lin'Jv- 

 violaceo. 



Dr.LEssERT's Sigaretus. Shell depressly ear-shaped, 

 spire small, nearly immersed, whorls flatly convex, 

 spirally flatly ridged, ridges more or less obsolete, 

 concentrically rudely plicafely wrinkled ; ash-white, 

 obscurely interruptedly banded with livid brown, 

 apex livi(l-\iolet. 



PiECLUz, Illus. Conch, p. 21. pi. 3. f. 8. 



Hab. Island of Luzon, Philippines (in sandy mud, at the 

 depth of seven fathoms) ; Cuming. 

 The colouring of this species is characterislic, tliough 



only faiutlv indicated. 



August, 1864. 



