208 MR. G. B. SOWERBY ON NKW SPECIES OF SHELLS. [Mar. 20, 



L. lata. Smith, Rep. on the LameHihr. of the ' Cliallenger.' 

 L. tahitensis, Smith, ihid. 

 L. torresiana. Smith, ibid. 

 L. confusa. Smith, ibid. 

 L. Inminiferu, Smith, ibid. 



L. dicnkeri, Sm\th,=japonica, Dunker, not of A. Adams, Sowerby, 

 Conch. Icon. 1872. 



Malletia angulata, sp. nov. (Plate XI. fig. 1.5.) 



M. testa oblonga, compressiuscula, valde inee.quilatera, epidermide 

 cornea, nitida induta ; antice breviuscula. postice elongata. 

 Margo dorsi posticus rectus angulafus, auriculatus. Marge 

 ventralis antice oblique arcuatus, postice sinuatus. Umbones 

 leviter prominences, acutivsculi. Cardine rectilineo, angusto, 

 dentibus numerosis minutis inslructo. Ligamentum longum 

 angustissimum, nigro-fuscum. 

 Diam. antero-post. 26, umbono-marg. 14 millim. 

 Hab. Bay of Bengal, 200 fath. 



Of the few species known of this rare genus, the present is one of 

 the most striking. It is distinguished from its congeners chiefly by 

 the remarkable sinuosity of the posterior side, forming an angular 

 auricle at the dorsal margin, and a broad lobe at the posterior 

 extremity. The hinge is the same as in other species of the genus. 



CypRjEA hungerfordi, sp. nov. (Plate XI. figs. 1-3.) 



C. testa pyriformi, solida, lata, depressiuscula, politissima, in 

 parte dorsali griseo interruptim trifasciata, maculis minutis, 

 pallidis, fuscis, conjluentibus lentiginosa ; spira immersa, conca- 

 viuscula, inconspicva ; luterihus latis, basibvsque flavescente 

 lacteis, maculis fuscis, numerosis, rotundatis, superne marginatis ; 

 basi concaviuscula ; margine columellari 20, concoloribus, parvis, 

 tenuiter productis, basalibus majoribus, obliquis, instructo ; 

 margine externa svperne incurvo, dentibus 24, brevibus, regu- 

 laribus wunito. 

 Long. 39, diam. 24, alt. 19 millim. 

 Hab. Japan ? 



This shell (which is in perfect condition) was purchased in Japan 

 some years ago by Dep.-Surgeon-General R. Hungerford, but he 

 had no guarantee that it was taken in Japanese waters, and, so far as 

 I know, no other specimen has been discovered. It is a species not 

 likely to be confounded with any other. It is pyriform but rather 

 depressed, and quite unlike C pyriformis ; the greyish bands 

 crossing the back give the idea of a young shell that has not got its 

 full colouring, but its sides are thickly enamelled, showing it to be 

 thoroughly adult. The spots bordering the lateral enamel are 

 unusually high towards the back of the shell, leaving the margins and 

 base of a plain cream-colour. 



Columbella filbyi, sp. nov. (Plate XI. figs. 8, 9.) 



C. testa fusiformi, fit sea ; maculis albidis irregulariter aspersa ; 



