262 FAUNA OF NEW ZEALAND. 



Fam. 



218. Spirula fragilis. Lam. Syst. Nautilus spirula. 

 Linn. 



Inhab. New Zealand, West Coast of N. Island. Dr. 

 Diejfenbach. 



219. Venus intermedia. 



" Called ' Pepa ' by the natives ; they are extremely abundant, 

 and are eaten as food by the natives. The name appears generic 

 for this edible bivalve." Dr. Sinclair. 



" East Coast ; much eaten by the natives ; called Pipi." Dr. 

 Diejfenbach. 



220. Nanina? Kim. 



Inhab. New Zealand. Dr. Sinclair. 



Shell top-shaped, imperforate, thin, white; spire subconic, 

 blunt, whorls slightly raised, strongly concentrically striated with 

 short, irregular, oblique, purple brown cross streaks; last whorl 

 rounded; front rounded, white, smooth; mouth broad, lunate, 

 with the outer lip slightly reflected over the axis. Diameter & 

 of an inch, axis -f^ of an inch. 



221. Nanina Maria. 



Inhab. New Zealand. Dr. Sinclair. 



Shell trochiform, slightly perforated, pale brown, with oblique, 

 close, transverse bands ; spire short, conic ; whorls nearly flat, 

 sharply keeled, front convex. 



The brown bands are sometimes crossed, leaving small square, 

 pale spots, especially on the front side of the last whorl. 



Differs from N.Zelandicein being more depressed and strongly 

 keeled, and in the axis being very narrow. 



N. Zelandice is pale brown, the whorls have opake white, wavy, 

 cross bands near the suture. 



222. Acanthochcetes Hookeri. 



Inhab. New Zealand, Great Barrier Island, Bay of Is- 



lands; and Van Diemen's Land. Dr. Sinclair. 

 Valves half ovate, covered with crowded flat-topped granules, 

 gray and green striped ; the central ridge olive, smoother. The 

 interior valve evenly granulated, without any ridges. The man- 

 tales hirsute, the tufts of spines large and green. 



This species is most like Acanthochcetes fasciculatus of the Eng- 

 lish coast; it differs from A. violaceus in the size of the tuft, and 



