1875.] G. £ H. Nevill — Descriptions of new Marine Mollusca. 95 



i>Iaeginella (Glabella) pictueata, Nevill, PI. VIII, Figs. 8 — 9. 

 J. A. S. B. 1874, p. 23. 



We have nothing to add to our description of this pretty little shell, 

 which would appear to be very local, as we have only seen specimens from 

 the Mauritius. 



Maegestella (Volvaeina) inconspictja, Nevill, PI. VIII, Figs. 10 — 11. 

 J. A. S. B., 1874, p. 23. 

 The Museum is indebted to the Rev. S. B. Fairbank for specimens 

 of this species from Bombay ; the type is from Mauritius, where it is 

 tolerably abundant. 



Maeginella (Volvabina) deeoemis, Nevill, PI. VIII, Fig. 12. 



J. A. S. B., 1874, p. 23. 

 This appears to be a very rare shell, three or four specimens, all from 

 Ceylon, being the only ones we have ever seen. 



Maeginella Isseli, n. sp. . 

 We propose to change to Marginella Isseli the name of a shell called 

 M. pygmcea by Issel (Malac. del Mar Rosso, p. 216), there being already a 

 species of that name described by Sowerby in 1846. This minute species 

 was dredged abundantly by Mr. W. T. Blanford off the coast of Persia 

 in 25 fths. 



Nassa obesa, n. sp., PL VIII, Figs, 2 — 3. 



Shell thick, stout, globosely conical, smooth and shining, spire very 

 pointed, apex acute ; brown, indistinctly and minutely mottled with white, 

 irregularly stained near the suture with a darker shade of brown, the colou- 

 ration agrees perfectly with Reeve's fig. 6 (mutabilis, L., from the Medi- 

 terranean) ; whorls 10, the three first without sculpture, very small, the 

 others longitudinally, obliquely thickly ribbed ; the ribs and their interstices 

 are of about equal thickness, the former are almost, or altogether, obsolete on 

 the back of the last whorl, four or five, however, are always present close 

 to the callous rib behind the outer lip ; transversely somewhat distantly 

 grooved, the grooves towards the base of the last whorl and the two or 

 three upper ones more deeply incised than the others and forming two 

 rows of more or less granulose ridges immediately beneath the suture ; 

 columella with a moderately large white callosity, slightly rugose, aperture 

 ridged near its margin. 



Long. max. (wanting the three first embryonal whorls) 22 ? diam. 

 max. 14 mil. 



Kutch, — rare. Major Godwin-Austen has been good enough to compare 

 this species for us with the British Museum and Mr. Hanley's collections : lie 

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