175 



At the desire of one or two gentlemen whose opinions in concho- 

 loirical matters cannot be lightly esteemed. I have described the Mi- 

 tra polita and crebrilirata as new and distinct si)ecies ; it mušt 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 Mttra 

 ebenus, ribbed variety, of the šame region. 



Mitra variabilis. Mitr. testd oblongo-ovatd, medio subobesd. 

 Itevigatd, transversim subtilissime punctato-striatd ; lutescente- 

 olivaced, lineis fuscis capillaribus remotiusculis cinctd, an/ractu 

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

 driplicatd; aperturce fauce olivaceo-fuscd. 



Conch. Icon., Mitra, pi. 13. f. 95. ^ t^ • 



Hab. Torres Strait (found under stones at low ^ater) ; Dnng. 



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

 times flaked or indistinctly streaked with bluish white. 



Mitra ctlindracea. Mitr. testd cylindraceo-ovatd. utringue at- 

 tenuatd, suleis capillaribus puncturatis, superne remotiusculis, cin- 

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

 ras omatd. an/ractu ultimo in medio maculato-fasciato ; columelld 

 guadriplicatd ; aperturte fauce fuscescente. 



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



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

 variabilis. 



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

 an/raciibus superne subangulatis. transversim impresso-striatts, 

 longitudinaliter plicato-costatis, costis superne obtuso-mucronatis ; 

 aurantio-lutescente, lined subtilissimd fuscd cingulatd, anfractu 

 ultimo f ascid latd nigricante-fuscd omatd; columelld guadriplicatd. 



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



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



The Mitra pullata is esactly intermediate between the Mitrai bal- 

 teolata and plicata. diflfering sufficienUy from both to constitute a 

 distinct species. 



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

 brevi; anfractibus convexis. Iceoigatis, epidermide comed olivaceo- 

 fuscd nitidd indutd; columelld guadriplicatd, basi truncatd; labro 

 in medio leviter contracto. 



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



Hab. ? , , . . , . . J- ^. 



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-fuscd, lined unicd albd cin- 

 gulatd; columelld guadriplicatd. basi contorto-recurvd. 



