Pyramidella.} GASTROPODA. 329 



Subgen. 1. EULIMELLA, Forbes, 1846. 



Eulimella, Forbes, Ann. Nat. Hist., xiv, 1846, 412. Type : E. crass-ilia, 

 Forbes = E. scillae, Scacchi. 



Animal with short tentacles ; mentum lobed in front ; anterior 

 extremity of foot truncated. 



Shell small, elongated, subcylindrical, turriculate, rather solid, 

 smooth, polished ; whorls numerous, apex sinistral ; aperture sub- 

 quadrangular or suboval ; peristome discontinuous ; columella straight, 

 without plications. Operculum with a spiral groove, columellar 

 margin entire. 



KEY TO SPECIES. 



A. Shell microscopically spirally striate . . . . . . . . levilirata. 



B. Shell without spiral striation. 



a. Suture distinctly channelled . . . . . . . . limbata. 



act. Suture distinct, but not channelled ; submargined . . . . ccena. 



1. Pyramidella ccena, Webster, 1905. Plate 16, fig. 7. 



Eulimella ccena, Webster, T.N.Z.I., xxxvii, 1904 (1905), 279, pi. 10, f. 11. 



Shell, small, subulate, smooth and polished, imperforate. Sculpture 

 none, except very fine growth-lines. Colour white. Spire high, the 

 top sometimes slightly turned to the left, outlines straight. Protoconch 

 heterostrophe, of 2 convex and smooth whorls, with the nucleus lateral. 

 Whorls 8 to 9, regularly increasing, flatly convex ; base rounded. 

 Suture well marked, submargined below by a smooth narrow band. 

 Aperture vertical, suboval, angled above, oval and slightly effuse 

 below. Outer lip slightly convex, sharp. Basal lip arcuate and some- 

 what expanded. Columella subvertical, slightly twisted, subtruncate 

 below. Inner lip rather broad, spreading sometimes a little beyond 

 the pillar, but not reflexed. Operculum unknown. 



Diameter, l - 2 mm. ; height, 3'8 mm. (specimen of 8 whorls). 



Animal unknown. 



Type in Mr. W. H. Webster's collection. 



Hob. Takapuna Keef, in sand (W. H. Webster) ; Banks Peninsula 

 (Iredale). 



Remarks. The height, 2J mm., is evidently wrong. If the figure 

 is correct it should be 3-5 mm. I found the shell to be not uncommon 

 in the locality mentioned. 



1'. Pyramidella levilirata, Murdoch and Suter, 1906. Plate 16, 

 fig. 8. 



Eulimella leviliata, M. & S., T.N.Z.I., xxxviii, 1905 (1906), 296, pi. 25, f. 38. 

 E. deplexa, Hutton, Index, 74 ; not of Hutton. 



Shell small, subulate, imperforate, many-whorled. Sculpture con- 

 sisting of microscopic fine close and linear spiral grooves, crossed by 

 very fine unequally spaced growth-lines. Colour white, glossy. Spire 

 long and subulate. Protoconch smooth, with a heterostrophe, minute, 

 rounded, and lateral nucleus. Whorls 1 to 8, slowly and regularly 



