8 Melvill, Descriptions of Marine Mollnsca. 



Marginella (Cryptospira) Shoplandi, sp. nov. 

 (PI. 6, f. 15). 



M. testa ovata, conica, albo-lactea, semipellucida, tenui, 

 lavissima, nitida, anfractibus quatuor, linea lactea suturas 

 circumcingente, spira conspicua, prominente, apertura angusta, 

 oblonga, labro extus paidlnm incrassato, supra applanato, intus, 

 prczcipue ad basim, minute denticidato, columella quadriplicate. 



Long. 3, lat. 1*50 mm. 



Hab. Karachi. 



This has been collected at the above-mentioned 

 locality by Captain E. R. Shopland, in whose honour 

 we have the pleasure of naming it, as well as by Mr. 

 Townsend. 



It is a delightful little species, of a beautiful semi- 

 pellucid milky-white colour, four-whorled, whorls shining, 

 smooth, a milk-white line encircling the sutures, the spire 

 prominent, mouth narrow, oblong, outer lip flattened 

 above, attenuate below, within, especially towards the 

 inner base, minutely denticled, columella four-plaited. 



This species is of the same contour as the larger and 

 coarser M. mazagonica Melv., and here we may take 

 the opportunity of mentioning that this latter species, 

 described in the Manchester Memoirs, vii. (1893) p. 57, 

 from Bombay, has since been dredged both on the 

 Mekran Coast and Persian Gulf by Mr. Townsend, much 

 enlarging its area of distribution in consequence. 



COLUMBELLA (MlTRELLA) CARTWRIGHTI, Sp. nOV. 



(PI. 6, f. 14). 



C. testa oblongo-fusiformi, versus apicem attenuata, solid- 

 iuscula, anfractibus octo, fere Iczvibus, castaneo-brunneis, 

 longitudinaliter albo-maculatis vel strigatis, strigis zebrinis, 



