308 GASTROPODA. \Pectinibrancliia 



the flattish parietal wall the callosity is thinner, but rather broadly 

 spreading, and there is a sharp plait below the suture. Opcrculum 

 oval, the columellar margin serrate. 



Diameter, 10 mm. ; height, 18 mm. 



Type in the Mus. Hist. Nat., Geneva. 



Hah. Bay of Islands (J. C. Anderson). Also Australia and Tas- 

 mania. 



4. Alectrion suturalis, Lamarck, subsp. Dunkeri, Suter, 1908. 

 Plate 45, fig. 17. 



Nassa intermedia, Dunker, Verb. Zool. Bot. Ges. Wien, xvi, 1866, 909 ; 

 Frauenfelcl, " Novara " Zool., ii, Moll., 5, pi. 1, f. 2 ; not of Forbes. 

 Buccinum suturale, Lam., A.s.V., vii, 1822, 269. Nassa glans, L., 

 var. .suturalis, Lam. : Watson, Chall. Rep., xv, 179. N. glans, L., 

 Index, 72. .V. suturalis Dunkeri, Suter, T.N.Z.I., xl, 1907 (1908), 350. 



Shell ovato-conic, thin and fragile, upper whorls axially costate. 

 Sculpture consisting of a few unequal spiral riblets on most of the 

 spire-whorls, except the protoconch, and also on the base ; axial 

 straight rounded riblets are present on the whorls below the proto- 

 conch ; they may be confined to a few of the upper whorls, or extend 

 even over the body- whorl, coronating the narrow shoulder with a row 

 of tubercles. Colour whitish, variegated and flamed with fulvous ; 

 usually 3 distant fine brown spiral lines on the spire-whorls, 5 to 7 on 

 the body-whorl. Spire conic, somewhat higher than the aperture ; 

 outlines lightly convex. Protoconch small, conical, of 2 smooth 

 blackish whorls. Whorls 7, first slowly increasing, the last two-thirds 

 of the height of the shell, flatly convex and very narrowly shouldered ; 

 base flattish, grooved close to the fascicle. Suture very lightly im- 

 pressed. Aperture oval, very distinctly canaliculate above, broadly 

 and deeply notched below. Outer lip convex, thin and sharp, usually 

 with a triangular inflection above, and sometimes with 4 to 5 minute 

 teeth near the base. Columella vertical, concave, with a distinct 

 basal fold. Inner lip broad, its margin more or less free, spreading 

 over the parietal wall, with a callosity and plait above, the former 

 extending some distance beyond the mouth. Fasciole prominent, 

 obliquely finely ribbed. Opcrculum not seen. 



Diameter, 17 mm. ; height, 29 mm. (type, from Port Jackson). 

 Diameter, 12 mm. ; height, 24 mm. (specimen from Cuvier Island). 



Animal unknown. 



Type in the K.K. Hofmuseum, Vienna. 



Hab. Kermadec Islands (Miss Robison) ; four miles west of Cuvier 

 Island, in 44 fathoms (Captain Bollons). Also Australia. 



Fam. MURICID.EJ, Fleming. 



Animal having a moderately long foot, truncated anteriorly ; 

 tentacles elongated, bearing the eyes on their sides, more or less high 

 up. Verge long, narrow, and club-shaped. Radula with the central 



