1883] LIEUT.-COL. GODWIN-AUSTEN ON SOCOTRAN SHELLS. 5 



This species appears to be nearest to H. {Belgrandia) 7niKacea, 

 Nevill (J. A. S. B. 1881, pi. vii. fig. 7), from Port Canning on the 

 Mutlah, Suudabuus ; but neither the operculum nor animal being 

 known, it is difficult to place it in its correct generic position. I at 

 first considered it a Bithynia. 



Melanta tuberculata, Miiller. (Plate 11. figs. 5, 6.) 

 Size : — 



Largest spec. Major diam. 9'8, alt. apert. 9'8, alt. axis29"0 millim. 



„ 0-39, „ 0-39, „ 114 inch. 



Younger spec. ,, „ 6'0, ,, 6"0, „ 17'0 millim. 



,, 0-24, „ 0-24, „ 0-67 inch. 



This is a very widely distributed shell. Brot records it from the 

 north, east, and west coasts of Africa, Madagascar and Mauritius, 

 India and Ceylon, Syria, Persia, Mesopotamia, Arabia, Siam ; Java 

 and Malta (Issel). 



Melania tuberculata, smooth var. (Plate II. fig. 4.) 



The interior of the aperture is milky white, with no splashes or 

 spotting of colour. 

 Size : — 



Major diam. 8*0, alt. apert. 8*0, alt. axis 22*5 millim. 

 0-31, „ 0-31, „ 0-89 iuch. 



Similar to fig. 1 1 c, pi. 26 of Brot's Monograph. 



Melania scabra, Miiller. (Plate II. fig. 1 .) 

 Shell turreted, solid ; spire high ; whorls 6, the last two angulate 

 above ; aperture ovate. 

 Size : — 



Major diam. 7-0, alt. apert. 7"0, alt. axis 16-4 millim. 

 „ 0-28, „ 0-28, „ 0-65 inch. 



This shell is identical with specimens in my collection from Kat- 

 tiawar ; it agrees, too, with fig. 14 b, plate 27 of Brot's monograph. 



The young shell (Plate II. fig. la), when from 2 to 3 mm. long, 

 has 5 whorls, the spines only commencing to be formed on the 

 fourth. The apex is rounded and smooth, carination showing on the 

 second whorl. The columellar margin is of a tine purple colour. 



A specimen in spirit, on being broken, was found to contain a 

 dozen of the size above given. This is identical with the young of 

 M. scabra from Kattiawar. 



Melania scabra, Miiller, var. (Plate II. fig. 2.) 

 Shell elongately turreted, the last whorl smooth, the apical whorls 

 being deeply sulcate, the intervening varices being very regular ; 

 sculpture, spiral ribbing on the last wliorl, finer above ; colour pale 

 ochraceous, with a few spottings and narrow stripes of dark ruddy 

 brown ; spire high, attenuate, apex decollate ; suture impressed ; 

 whorls 8, apex gone, probably 10 when complete, sides convex; 



