268 Transactions. — Zoology. 



Under surface pale grey, with darker along the median line. 

 Tentacles short, pale cream colour tipped with red. 

 Eyes numerous at the base of the tentacles. 

 Length, 1^ inch. 

 Evans Bay. 



Named' after Mr. W. H. Herbert, to whom I am indebted for specimens 

 of this beautiful species. 



Art. XXXVII. — Additions to the List of New Zealand Shells. 



By T. W. Kirk, Assistant in the Colonial Museum. 

 [Bead before the Wellington Philosophical Society, 20th August, 1881.] 



Buccinulus gracilis, sp. nov. 

 Whoels 8, finely and closely spirally grooved. Body whorl rather con- 

 stricted in the middle ; the spiral grooves are much finer at the anterior 

 end of this whorl, and as they approach the lip, which is very thin and 

 sharp. White. 



Length -85 inch. Breadth -37 inch. 



Wellington : collected by Mr. C. Holdsworth. 



This shell is easily distinguished from Buccimdm kirki, Hutton, (the type 

 of which is in the Colonial Museum), by the greater number of whorls, its 

 more elongate and less robust appearance, and by the greater number and 

 closer proximity of the spiral grooves. 



Buccinulus huttoni, sp. nov. 



Whorls six, with numerous fine spiral grooves. Columella with double 

 fold, but more prominent than in the preceding species. Spire very 

 short, giving a decidedly robust appearance to the shell. Ground colour, 

 white with longitudinal brown wavy lines. 



Waikanae. 



Neritina fluviatilis, Linn. 

 Neritina fluviatilis, Jeffreys, Brit. Conch., i, p. 53. 



Shell convex above, slightly compressed towards the spire, and almost 

 concave below, solid, moderately glossy, yellowish or brown, with often 

 brown or white zigzag streaks, spots, or bands, which run lengthwise or in 

 a spiral du-ection, and marked with fine but distinct transverse striae or 

 plaits, which are more conspicuous towards the suture ; epidermis thin : 

 whorls three, rather convex, the last or lowermost exceeding two-thirds of 

 the whole shell, increasing very rapidly and disproportionately in size ; 

 spire very short and oblique ; suture rather deep ; mouth of aperture semi- 

 lunar ; outer lip sharp ; pillar-lip exceedingly broad, polished and flat, with 

 a sharp and plain edge. 



