VOLVATELLA. 38$ 



V. CINCTA Nevill. PI. 42, figs. 33, 34, 35. 



Shell ovate-cylindrical, membranaceous, involute, a little con- 

 stricted in the middle, produced at both ends ; abruptly contracted 

 behind, gently rounded and somewhat dilated in front; Aperture 

 extremely narrow behind, closed by the inflexion of the lip in the 

 the middle, rounded below, the inner lip a little reflexed ; 

 outer lip thin, obliquely truncated above, sinuous in the middle ; 

 epidermis corneous, pale brown, with two wide reddish girdles ; 

 growth-striae minute, regularly flexuous. Alt. 11 J, diam. 6 mill- 



(Nev.-). 



Ceylon. 



V. cincta G. & H. NEV., Journ. Asiat. Soc. Beng. xxxviii, 1869, 

 p. 67, pi. 13, f. 4. 



Differing from its nearest ally, V. vigourouxii, in the peculiarity 

 of the epidermis and in the anterior part of its aperture being more 

 rounded and not nearly so dilated ; there is also no callosity near 

 the margin of the inner lip ; the difference in size is equally very 

 great, V. vigourouxii being 24 mill, in length and 14J in breadth.. 

 The animal resembles that of V.fragilis Pease, the color being bright 

 orange with bands of red aggregated corpuscles ; it lives in shallow 

 water on reefs among corallines, etc. ; when molested exudes a 

 milky fluid (Nev.~). 



V. VIGOUROUXI Montrouzier. PL 48, figs. 6. 



Shell ovate, few-whorled, corneous, subpellucid, thin, membra- 

 nous ; rounded in front ; subinflated and produced in a channel be- 

 hind ; whitish and spirally striated under the epidermis ; spire con- 

 cealed ; inner lip produced in a channel behind ; aperture rounded 1 

 in front, narrowed and channelled behind, somewhat acute 

 above. Alt. 24, diam. 14 mill. (Souv.~). 



Balade, New Caledonia (Bordeaux Mus.). 



Lophocercus vigourouxi* Montr., in Souv., Journ. de Conch. 1861 r 

 p. 271, pi. 11, f. 1. Volvatella vigourouxi PSE., Amer. Journ. 

 Conch, iv, p. 73. FISCHER, Man. de Conch, p. 560, f. 319. Oxy- 

 noe vigourouxii MORCH, Journ. de Conch. 1863, p. 47. 



V. PYRIFORMIS Pease. PL 42, figs. 21, 22, 23. 



Shell subobliquely cylindrical, thin, fragile, membranaceous; 

 covered with a yellowish epidermis ; longitudinally subflexuous- 

 plicate ; left side inflated ; produced in a canal ; aperture rounded 

 in front (Pse.). 



