MELANIA.— Plate XXIV. 



The broad ridges of this species have a tendency to gra- 

 nulation, but it is quite superficial. 



Species 172. (Mus. Cuming.) 



Melania rudis. Mel. testa subfimformi-turritd, solidd, 

 olivaced, anfractibus planulatis, longitudiualiter un- 

 dato-costatis, spiraliter dense sulcato-striatis ; aperturd 

 parvd, ad basin truncatd, labro superui emarginato. 



The rude Melania. Shell somewhat fusiformly tur- 

 reted, solid, olive, whorls flattened, longitudinally 

 wave-ribbed, spirally closely groove-striated ; aper- 

 ture small, truncated at the base, lip notched at the 

 upper part. 



Lea, Pro. Zool. Soc. 1850, p. 186. 



Hab. Amboyna. 



Of the same Fleurotoma-like character as M. hybrida, 

 and very much resembling that species in detail of sculp- 

 ture. 



Species 173. (Fig. a, Mus. V. d. Busch, 

 Fig. b, Mus. Cuming.) 



Melania Tornatella. Mel. testa cylindraceo-ovatd, 

 livido-spadiced, ad basin, iuferdumfusco-puucla/a', spird 

 plus minus acuminata, anfractibus octo adnovem, lon- 

 gitudinaliter coufertim oblique undato-liratis, versus 

 basin spiraliter lira f is ; aperturd anguste ovatd, cal- 

 loso-reflexd, labro medio sinualo. 



The Tornatella Melania. Shell cylindrically ovate, 

 livid-bay, sometimes brown-dotted at the base, spire 

 more or less acuminated, whorls eight to nine, longi- 

 tudinally closely obliquely wave-ridged, towards the 

 base spirally ridged ; aperture narrowly ovate, co- 

 lumella callously reflected, lip sinuated in the middle. 



Lea, Pro. Zool. Soc. 1850, p. 185. 



Melania mitra, Dunker (not of Meuschen). 



Hab. Tanhay, Island of Negros, Philippines (iu shallow 

 rivers) ; Cuming. 



This is a very distinct form of Melania, and should con- 

 stitute a subgenus of itself. 



