MITKA.— Plate XVII. 



liriihi-otiran;i.fa,ii„ii'lis jierpnurh altiiitis lii/itjil inliiia- 



liter ornatd; columella, triplkatd; apertures fauce 

 livido-castaned. 



The Senegal Mitre. Shell fusiform, spin' sharply 

 acuminated ; whorls smooth, rathen swollen round the 

 upper part ; livid olive, longitudinally ornamented 

 with a very few white flame- ; columella three-plaited ; 

 interior of the aperture livid chesnut. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. Senegal; Petit. 



A very characteristic species, quite distinct from any 

 hitherto described. 



Species 130. (Mus. Norris.) 



Mitra impressa. Milr. testa elongate!, sub-Terebreeformi, 

 longitudinaliter subtUiter costelUctd, eostellis lesirigatis, 

 interstitiis transversim peculiariter impresso-sulcatis ,■ 

 fusceseente-rubidd, macularum st rie unicd subindistinctd 

 cingulatd, eostellis albidis ; columella quinqueplieatd, 

 ban) leviter recurvd. 



The impressed Mitre. Sln-11 elongated, somewhat Te- 

 rebra-shaped, longitudinally very finely ribbed, ribs 

 smooth, transversely peculiarly impressly grooved ; 

 brownish red, encircled with a rather indistinct row 

 of spots, ribs whitish ; columella five-plaited, base 

 slightly recurved. 



Peeve, Pro. Zool. Soc, 1844. 



Hob. ? 



A truly interesting species, of which this is the only 



specimen I have seen. It is of a deep brick-red colour 



covered with close whitish longitudinal ribs, each whorl 



being encircled round the middle with an indistinct row 



of spots of a darker red. 



Species 131. (Fig. a, Mus. Norris ; Fig. h, Mus. Cuming.) 



Mitra semifasciata. Mitr. testa ovato-oblongd, spird 



subturritd, leevigatd; longitudinaliter tubconcentrice 



costeUatd, eostellis confertis, superne, crassulatis , an. 

 fractibus superne' attido - cinereis, infra fulvo - rubris 

 /in/ cinereo-cesrulescentihis, lineis fuscis duabus vel tri- 

 bus angulatis : columella quadriplicatd. 



The half-banded Mitre. Shell ovately oblong, spire 

 somewhat turreted, smooth ; longitudinally rather con- 

 cciitrically ribbed, ribs close set, thickened at the 

 upper part ; whorls pale ash colour above, yellowish- 

 red or ashy-blue beneath, encircled with two or three 

 brown lines; columella four-plaited. 



Lamarck, Anim. sans vert., vol. vii. p. 319. 



Hab. Island of Ticao, Philippines (found under stones at 

 low water); Cuming. 



M. Kiener has confounded Swainsou's Mitra rigida with 

 this; a very distinct species for which see Plate XXII. 



Species 132. (Fig. a, Mns. Norris; Pig. b, Mus. Cuming.) 



Mitra fusiformis. Mitr. texta ovato-fusiformi, spird 

 aeuminato-turritd ; anfractibus superne angulatis, infra 

 unguium longitudinaliter costatis, costis noduloso-gra- 

 nosis, granulis supremis vedde prominentiitis, transver- 

 sim impresso-striatk ; aliidd, aurantio-fuscescente tes- 

 sellato-tinctd ; columella quadriplicatd, apertures fauce 

 striata. 



The fusiform Mitra. Shell ovately fusiform, spire acu- 

 minately turreted; whorls angulated at the upper 

 part, longitudinally ribbed beneath the angle, ribs 

 nodulously granulated, highesl granules very promi- 

 nent, transversely impressly striated ; whitish, tessel- 

 lately stained with orange brown; columella four- 

 plaited, interior of the aperture striated. 



Kiener, [conographie Coq. viv. p. 99. pi. 29. f. 97. 



Hab. Island of Ticao, Philippines (found on the sands); 

 Cuming. Zanzibar (found on the reef- at low water); 

 Thorn. 



Closely allied, but for its fusiform shape, to the Mitra 

 mucronata. 



