36 SMITH ; NEW LAND SHELLS FROM SOCOTRA. 



5. Buliminus (Ovella) acutus, n. sp. (PI. Y., fig. 5). 



Testa ovato-fusiformis, angustc perforata, iiilida, nigro-ct fiisco- 

 coniea, strigis albis, loiigitiidinalibus, aiigiistis, irregnlarihus, infra 

 medium anfr. nltimi siihito, obliqnis, oriiata, lineis incrementi vix con- 

 spicuis sculpta ; spira elongato-pyramidalis, ad apicem ohtusa ; anfractus 

 7 lente accrcscentes, duo superiores flavescentes conrexi, caeteri planiusculi, 

 nltiinus haud descendens, anticc subacuminatus ; apertura angustc ovalis, 

 iutus saturate fusca, longit. totius ^ paulo superans ; peristoma flavescens, 

 subtenue, margine externa haud expanso, columellari auguste reflcxo, ad 

 insertionem albo, intus in medio tenuitcr uniplicato. 



Longit. 13, diain. 5.4. mm. Apertura 5 longa, 2.5 lata. 



The acuminate spire, flattened whorls and style of coloura- 

 tion are the distinguishing features of this pretty species. The 

 ground colour of the last whorl is lighter than that of the two 

 preceding whorls and besides the irregular white lines and 

 stripes, a few white tlots are scattered irregularly over the 

 surface. The shell is very smooth and glossy, and tlie embryonic 

 shell consists of two convex whorls of a yellowish horn colour. 

 Allied to B. longiforinis, Godwin-Austen, but smaller, with a 

 more acuminate spire, and a peculiar style of markings on the 

 lower half of the body-whorl. 



6. Buliminus (Ovella) innocens, n. sp. (PI. V., fig. 6). 



Testa parva, angusta, ovato-fusiformis, rimata, albida ; anfractus 

 7 lente accrcscentes, apicales duo laeves, convexi, caeteri planiusculi, 

 oblique confcrtim costnlato-striati, sutura Icviter obliqua distincta 

 sejuncti, ultimus haud descendens; apertura parva, aiigusta, longit. 

 totius 1 paulo superans, alba ; peristoma tenue, margine exteriore vix 

 expanso, columellari leviter reflexo, intus plica obliqua tenui instructo. 



Longit. 12, diam. 4 mm. Apertura 4 longa, 2 lata. ■ 



Only two dead specimens are in the collection which may be 

 more or less bleached, but neither exhibit any traces ol colour- 

 makings. The species may be recognised by the slender form 

 and very fine, close-tet ccstujcC, 



