GASTEROPODA. 51 



granulose ; dorsal line smooth, with several irregular rows of longi- 

 tudinal punctures on each side ; sides granulose ; nine bundles of 

 spines on each side. Mantle brown, valves violet. Length, 1'5 ; 

 breadth, '65. 



In rock basins near low watermark. Cook Strait. 



CRYPTOCONCHUS. 



Mantle large, enveloping the greater part of the valves ; exposed 

 portions of valves longer than broad. 

 California. 



238. C. zealandiCUS, Quoy, Voy. Astrolabe, iii., p. 400. Elon- 

 gated oblong ; margin scaly, with a row of short spines round the 

 edge ; mantle large, continuous under the apex of each valve ; valves 

 depressed, rounded, sub-carinate ; posterior margin concave, with an 

 acute point ; exposed portions of valves small, smooth on the dorsal 

 line, granulose on each side ; nine tufts of spines on each side, situated 

 over the valves. Blackish brown ; exposed portion of the valves 

 yellowish ; spines yellowish brown. Length, '45 ; breadth, '15. 



Two specimens are in the Colonial Museum, locality not stated ; 

 obtained by dredging. 



239. C. mOntiCTllaris, Quoy, Voy. Astrolabe, iii., p. 406. 

 Oblong; mantle smooth, covering the whole body except a small linear 

 opening at the apex of each valve ; valves depressed, rounded ; 

 posterior margins convex and emarginated ; exposed portions of valves 

 smooth ; nine bundles of spines on each side, situated over the valves. 

 Dark reddish brown when dry ; inside greenish grey. Length, 1 ; 

 breadth, '45. 



ORDER TECTIBRANCHIATA. 



Branchiae on the side of the back ; animal and foot elongate for 

 walking; shell spiral. 



FAMILY TORNATELLID.E. 

 Shell solid, ovate or elongated ; operculum horny. 



BUCCINULUS. 



Ovate, with a conical many-whorled spire ; mouth long, narrow, 

 rounded in front ; columella with two spiral folds ; operculum horny, 

 elliptical, lamellar. 



240. B. kirki, sp. nov. Whorls six, finely and rather distantly 

 spirally grooved, those on the centre of the whorls rather farther apart ; 

 columella with one double fold. White. Length, '8 ; breadth, '3. 



Omaha. 



241. B. albllS, sp. nov. Ovate, whorls seven, rather deeply equi- 

 distantly spirally grooved, and lightly transversely striated ; columella 

 with a broad double anterior fold, and a smaller posterior one. White. 

 Length, '35 ; breadth, - 15. 



