Hutton. — On Khachiglossate Mollusca. 225 



Genus Voluta, Linne. 



Shell ovate, the aperture narrow. Operculum none. Teeth tricuspid. 

 Sub-genus Alcithoe, H. and A. Adams. 



Shell thick, the spire elongated, with a papilliform apex ; outer lip 

 expanded and more or less reflexed. 



Voluta pacifica, Solander, Cat. Portland Museum, No. 4039 (1783) ; 

 Quoy and Gaimard, Voy. Astrolabe, Zool. ii., p. 625, pi. 44, f. 6; Gray, 

 Figs. Moll. Anim., i. pi. 27, f. 3 ; Sowerby, Thes. Conch., i., pi. 48, f. 26 ; 

 Tryon, Man. Conch., iv., pi. 28, f. 97; Homb. and Jacq_., Voy. au Pole 

 Sud, Zool. v., p. 72, pi. 19, f. 7 ; Gray, 1. c, hi., pi. 263, f. 1. Buccinum 

 arabicum, Marty n, Univ. Conch., pi. 52 (1784). 



Hab. Throughout the N. Island; Cook Straits; Banks Peninsula; 

 Foveaux Straits. 



Fulvous, with dark brown anastomosing markings, forming three or 

 four spiral bands. Whorls with a row of tubercles ; columella with four to 

 six plaits. 



Var. elongata, Swainson. 



Fulvous, and without tubercles. 



The dentition is figured in Trans. N.Z. Institute, vol xv., pi. xiii., f. u. 



Voluta gracilis, Swainson, Exotic Conchology, pi. 42 (1821); Griffith 

 in Cuvier's Animal Kingdom, vol. xii., pi. 40, f. 4 ; Sowerby, Thes. Conch., 

 i., pi. 55, f. 117 ; Tryon, Man. Conch., iv., pi. 28, f. 99. Valuta f asm, Quoy 

 and Gaimard, Voy. Astrolabe, Zool. ii., p. 627, pi. 44, f. 7-8 (1833) ; Tryon, 

 I.e. iv., pi. 28, f. 98. 



Hab. Auckland. 



Fulvous with anastomosing flexuous markings which do not form bands. 

 The nodules elongated : columella with four plaits. 



Smaller and narrower than the last species. The dentition is not known. 

 Sub-genus Cyrnbiola, Swainson. 



Shell thin, the spire elongated, with a papilliform apex ; outer lip 

 sharp, occasionally slightly expanded. 



Voluta lutea, Watson, Jour. Lin. Soc, Zool. xvi, p. 331 (1882) ; N.Z. 

 Journal of Science, i., p. 441. 



Hab. 200 miles west of Cape Campbell in 275 fathoms. 



Pale buff with a high blunt spire, largish mouth, slightly reflexed outer 

 lip, and four plaits on the columella. 



I have not seen this species, which was obtained by the Challenger Ex- 

 pedition. The dentition is unknown. 



Sub-order Odontoglossa. 

 Dentition, 1 — 1 — 1 ; the laterals not versatile, broad, many-cuspid 

 (Turricula is said to differ from this.) 

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