220 STSUTHIOLAEIA. 



1842. Struthiolaria inermis, Sowerby, Thes. Conch, vol. i. p. 23, pi. v. 



figs. 12, 13, and 19. 

 1873. Struthiolaria australis, Von Martens, List Moll. N.Z. p. 26. 

 1873. Struthiolaria vermis, Hutton, Cat. Marine Moll. N.Z. p. 24. 

 1873. Struthiolaria vermis, Hutton, Cat. Tert. Moll. N.Z. p. 10. 

 1876. Struthiolaria vermis, Paulucci, Bull. Soc. Malac. Ital. ser. 2, vol. ii. 



p. 229. 

 1880. Struthiolaria australis, Hutton, Man. N.Z. MoU. p. 68. 

 1880. Struthiolaria inermis, Hutton, id. p. 68. 

 1885. Struthiolaria vermis, Tryon, Manual of Conchology, vol. vii. p. 133, 



pi. xii. figs. 35, 36. 

 1893. Struthiolaria vermis, Hutton, Linn. Soc. N.S."W., Macleay Mem. Vol. 



p. 61. 



This species is charactemed by its smaller size, excavated 

 suture, obtuse shoulder, which is more or less nodose, by the 

 younger whorls being spirally bicarinate, and in being faintly 

 spirally striate ; the front part of the body-whorl is more strongly 

 and distantly lineate, and the middle is flattened and somewhat 

 depressed. 



Dimensions. — Length 45 mm. ; breadth 30 mm. ; length of 

 aperture 23"5mm. 



Form, and Loc. — Pliocene : Wanganui, New Zealand. 



G. 9543, G. 9551. Two examples of the adult. 



Sir James Hector Coll. 



Struthiolaria frazeri (Hector MS.), Hutton. 



[Plate VI. Figs. lOa-3.] 



1885. Struthiolaria frazeri, Hutton, Trans. N.Z. Inst. vol. xvii. p. 329. 



1886. Struthiolaria fraseri. Hector, Outlines of Geol. of N.Z. (Ind. and Col. 



Eshib. New Zealand Court, Cat. of Exhibits), p. 48, fig. 1. 

 1893. Struthiolaria fraseri, Hutton, Linn. Soc. N.S.W., Macleay Mem. 

 Vol. p. 61. 



This shell differs from S. papulosa in being strongly spirally 

 grooved, the sulcations are very deep and wide ; the whorls are 

 elevated, keeled, flattened, and gradated, the area between the 

 suture and the broad, distant tuberculose spiral band or keel at the 

 shoulder posteriorly being almost flat, and also deeply spirally 

 grooved, there are three or four grooves behind the keel and four 

 or five in front of it in the whorls of the spire ; body- whorl 

 similarly sulcated, subangulate, and broadly banded at the fourth 

 or fifth sulcation in fiout of the peripheral keel, the whole being 



