Zoological Society. 483^ 



logical matters cannot be lightly esteemed, I have described the Mi- 

 trcK polita and crehrilirata as new and distinct species ; it must be 

 admitted, however, that I have felt strongly inclined to regard the 

 former as the Eastern analogue of the Mitra ebenus, smooth variety, 

 of the Mediterranean, and the latter as the analogue of the Mitra 

 ebenus, ribbed variety, of the same region. 



Mitra variabilis. Mitr. testd oblong o -ov at d, medio subobesd, 

 Icevigatd, transversim subtilissime punctato-striatd ; lutescente- 

 olivaced, lineis fuscis capillaribus remotiusculis cinctd, anfractu 

 ultimo zond unicd ccerulescente-albd medio ornato ; columelld qua- 

 driplicatd; apertures fauce olivaceo -fused. 



Conch. Icon., Mitra, pi. 13. f. 95. 



Hab. Torres Strait (found under stones at low water) ; Dring. 



The variable character of this species consists in its being some- 

 times flaked or indistinctly "streaked with bluish white. 



Mitra cylindracea. Mitr. testd cylindraceo-ovatd, utrinque at' 

 tenuatd, sulcis capillaribus puncturatis, superne remotiusculis, cin- 

 gulatd ; lutescente-olivaced, maculis albis irregularibus infra sutu- 

 7^as ornatd, anfractu ultimo in medio maculato-fasciato ; columelld 

 quadriplicatd ; aperturce fauce fuscescente. 



Conch. Icon., Mitra, pi. 13. f. 97. 



Hab. ? 



The painting of this shell is not much unlike that of the Mitra 

 variabilis. 



Mitra pullata. Mitr. testd fusiformi, spird acuminato-turritd ; 

 anfractibus superne subangulatis, transversim impresso-striatis, 

 longitudinaliter plicato-costatis, costis supern^ obtuso-mucronatis ; 

 aurantio-lutescente, lined subtilissimd fused cingulatd, anfractu 

 ultimo fascid latd nigricante-fuscd ornatd ; columelld quadriplicatd. 



Conch. Icon., Mitra, pi. 14. f. 102. 



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



The Mitra pullata is exactly intermediate between the Mitra: bal- 

 teolata and plicata, differing sufiiciently from both to constitute a 

 distinct species. 



Mitra oleacea. Mitr. testd oblongo-ovatd, Bucciniformi, spird 

 brevi ; anfractibus convexis, Icevigatis, epidermide corned olivaceo- 

 fused nitidd indutd ; columelld quadriplicatd, basi truncatd ; labro 

 in medio leviter contracto. 

 Conch. Icon., Mitra, pi. 14. f. 105. 



Hab. ■ ? 



There is a peculiarity in the form of this species which distin- 

 guishes it from any other of the Melania-like group. 



Mitra obeliscus. Mitr. testd acuminato-turritd, spird acutd; an- 

 fractibus longitudinaliter costatis, costis angustis, crebris, inter- 

 stitiis impresso-cancellatis ; lutescente -fused, lined unicd albd cin^ 

 gulatd; columelld quadriplicatd, basi contorto-recurvd. 



Conch. Icon., Mitra, pi. 15. f. 107. 



2LZ 



