260 SMARAGDINELLA. 



L. minor AD., Thes., p. 598, pi. 121, f. 54. Sows., C. Ic., f. 1. 



May be only a variety of S. viridis, but distinguished by its 

 shorter form. 



S. ANDERSONI Nevill. PL 33, figs. 40, 41. 



Shell oval, glaucous, open, indistinctly longitudinally striate ; 

 spire a little involute ; inner lip bearing a small appendage ; aper- 

 ture large, dilated in front, the anterior margin oval-arched, poste- 

 rior margins somewhat coarctate. 



Length 8*, diam. 6*, alt. 3* mill. (Nev.'). 



S. Province of Ceylon, on reefs at low water (Nev.) ; Penany 

 (Stoliczka) ; Suez (Cooke). 



Glauconella andersoni G. & H. NEVILL, Journ. Asiat. Soc. Beng. 

 xl, pt. 2, p. 2, pi. 1, f. 13. Smaragdinella andersoni COOKE, Ann. 

 Mag. N. H. (5), xvii, p. 133. 



This interesting species in shape closely resembles G. viridis 

 Rang., the body of the shell is, however, considerably more in volute 

 and the colour a pale apple-green ; it also differs from the above, as 

 well as from all the other described species of the genus, in the small, 

 almost rudimentary appendage. It is tolerably abundant on reefs 

 at low water in the S. Province, Ceylon. Dr. Stoliczka also found 

 it at Penang. The animal is dull greenish, mottled with brown, 

 the eyes are sessile, very small and black ; the shell is completely 

 hidden by the meeting of the lateral expansion of the mantle, in 

 this respect differing from G. viridis, in which according to A. 

 Adams, the shell is only partially hidden. Its mode of progression, 

 at the time, strongly reminded one of us of that of Omphalotropis. 

 (Nev.}. 



S. SIEBOLDI A. Adams. Unfigured. 



Shell ovate-oblong, slightly involute, open, thin glaucous, pellucid, 

 the back longitudinally striated ; inner lip bearing a spiral lamella, 

 scarcely dilated. (Ad.*). 



TaJcano-Sima, Japan, between tide marks. 



Smaragdinella sieboldi AD., Ann. Mag. N. H. (3), xiii, p. 310, 

 1864. DKR., Index, p. 167. 



This species differs remarkably from the other species of the genus 

 in the breadth of the spiral lamella which winds round the inner 

 lip. In S. viridis, S. glauca, and S. minor the lamella is so broad 



