MITRA.— Plate II. 



It should perhaps be noticed, that the specimen of 

 Ultra tessellata here represented is of unusually dark 

 colour, on account of its epidermis not having been re- 

 moved. 



Species 11. (Mus. Norris.) 

 Mitra terebralis. Mitr. testa pralongo-turritd, an- 

 fractibus lavibus, sulcis exilibus angustis, irregula- 

 riterforaminatis, cinctis ; aurantio-lutescente, flam- 

 mulis castanets plus minusve vividi pictd ; columel/d 

 quinque-plicatd ; labro vix crenulato. 

 The auger-like Mitre. Shell very elongately turreted, 

 whorls smooth, encircled with faint narrow grooves 

 irregularly pricked with holes ; orange-yellow, more 

 or less vividly painted with chestnut-brown flames ; 

 columella five-plaited ; lip but slightly crenulated. 

 Lamarck, Anim. sans vert., vol. vii. p. 003. 

 Hub. Zanzebar, east coast of Africa ; Thorn. 



This and the preceding species appear to have been 

 hitherto confounded together, although presenting not 

 only a very different style of sculpture, but a variation of 

 form of no mean specific importance. They are more- 

 over from two localities, which rarely, or never, produce 

 examples of the same species. 



The Tiara terebralis of Swainson, Pro. Zool. Soc, 1835, 

 is the Mitra subulata of Lamarck (see Plate XL), a shell 

 differing so essentially from the Mitra terebralis, that I 

 scarcely know how to account for Mr. Swainson's ex- 

 traordinary remark, that the first-mentioned shell so 

 closely resembles the last, " that but for its possessing 

 the generic characters of Tiara it might pass for the 

 same species." 



Species 12. (Mus. Cuming.) 



Mitra chrysostoma. Mitr. testd elongato-ovatd, basi 

 attenuatd, recurvd, spird acuminata ; anfractibus 

 transversim obtuse liratis, longitudinatiter subobliqu'e 

 sulcatis, anfractds ultimi sulcis lirisgue medianis ob- 

 soletis ; albidd out favescente, maculis castanets gran- 

 dibus subquadratis indistincfe tessellatd ; columelld 

 quinque-plicatd ; aperturd subcontracts, fauce pa/lidr 

 rubro-aured ; labro exilissime crenulato. 



The golden-mouth Mitre. Shell elongately ovate, 

 base attenuated, recurved, spire acuminated; whorls 

 transversely obtusely ribbed, longitudinally rather 

 obliquely grooved, grooves and middle ridges of the 

 last whorl obsolete; whitish or yellowish, indistinctly 

 tessellated with large, somewhat square, chestnut 

 spots or blotches ; columella five-plaited ; aperture 

 somewhat contracted, interior tinged with a warm 

 reddish-golden colour ; lip very faintly crenulated. 



Swainson, Pro. Zool. Soc, 1836. 



Hub. Island of Annaa, Pacific Ocean, and island of Ticao, 

 Philippines (found on the reefs at low water) ; Cu- 



M. Kiencr has given a very good representation of the 

 Mitra chrysostoma for the Mitra contractu, which, to ac- 

 count for their non-accordance, he says must have been 

 described and figured by Mr. Swainson from a worn spe- 

 cimen. I can assure M. Kiener, however, that the Mitra 

 contractu, (properly Mitra abbatis) for which see Plate 

 XIII., is quite another thing, and is represented in the 

 ' Zoological Illustrations' with particular accuracy. 



