SOUTH AFRICAN MARINE MOIJ.USCA. 183 



Leucotina natalensis n. sp. PI. YII, fig. 1. 



Testa ovata, supra acuminata, nivea, rimata, levitei' uitida ; 

 aufractus 6-7, apiralis liyalinus, Ifpvis, involutus, cfctori con- 

 vexiusculi spiraliter tenuitei- sulcati, sulcis in anfractu pen- 

 ultimo septem, in ultimo circiter 18, lineis increment! obliquis 

 sculptisj lira? inter sulcos planae, sulcis latiores; apertura 

 inverse auriformis, longitudinis totius ^ subagquans ; columella 

 incrassata, anguste reflexa, superne leviter unidentata vel 

 plicata ; labrum tenue, arcuatum. 



Longit. 1075, lat. 4"5 mm ; apertura 5 mm. longa, 2"3 lata. 



Hab. — Isezela, Natal (Mrs. C'rossley). 



This species differs from L. concinna of A, Adams, which 

 I regard as synonymous with casta, A. Ad., in form, the 

 body-whorl being much larger in proportion to the spire, and 

 the spiral sulci are less numerous. The shell recorded by Mr. 

 Sowerby as casta, A. A<L ('Marine Shells of South Africa,' 

 p. 52) does not, in my opinion, belong to that species, but is 

 more closely related to his own Leucotina el on gat a, with 

 which it agrees exactly in sculpture, but it is a much shorter 

 shell. 



Daphnella casta ^ of Hinds, which was founded on a 

 broken specimen, now in the British Museum, undoubtedly 

 belongs to the genus Leucotina. Hence the name casta 

 subsequently given to a species of this genus by A. Adams 

 cannot be used, but as I regard it as the same species as 

 concinna of A. Adams there will be no need to invent a fresh 

 name for it. 



L. modesta A. Adams is rather like the present species 

 in form, but the shape of the aperture and the columella are 

 different. The sulci in L. natalensis, especially on the 

 body- whorl, are broader, and the lines of growth in the grooves 

 are stronger. 



Smaragdinella andersoni [(t. and H. Neclll). 

 Glauconellaandersoni G. and H. Nevill, Mourn. Asiat. 

 Soc. Bengal,' vol. xl, Pt. 2, p. 2, PI. I, fig. 13. 



' Voy. *' Sulphur," p. '25. pi. vii, fig. 20. 



