346 



Transactions. 



13. Xenophora neozelanica, n. sp. Plate XXVI, figs. 1 and 2. 



Phorus onustus, Reeve, Hutton, Cat. Mar. Moll., p. 31 (not 

 of Reeve). P. conchyliophoms. Born, Hutton, Jonrn. de 

 Conch., 1878, p. 30. Xenophora conchy! iophora, Born, 

 Hutton, Proc. Linn. Soc. N.S.W., vol. ix. p. 943 (not of 

 Born). X. pallidula, Reeve, Index, p. 79 (not of Reeve). 

 Shell large, trocbiform, imperforate, upper surface almost 

 concealed by agglutinated shells. Sculpture : Strong, oblique, 

 irregular growth-lines are crossed by oblique, flexuous, and 

 sometimes strongly curved striae, usually more prominent near 

 the periphery, which is in places produced into long, hollow. 

 and deeply grooved spines, situated between the attached shells : 

 base with numerous inequidistant and sharp-ridged revolving 

 ribs, the interstices with fine threads of growth or almost smooth. 

 Colour white or light-yellowish ; the ridges upon the base yel- 

 lowish to reddish - brown. Spire conical ; outlines mostly 

 slightly convex. Protoconch small, conic, of a few convex 

 smooth whorls, polished and white, with marks of agglutination 

 of very small foreign bodies. Whorls about 9 to 10, first slowly 

 then more rapidly increasing ; the last whorl carinated ; base 

 flat, concave towards the periphery. Aperture low and broad, 

 inside porcellaneous, highly polished. Outer lips very much 

 produced along the periphery, the upper and outer wall forming 

 a roof, the inside of which is porcellaneous. Columella short, 

 subvertical, arcuate, continued below into the horizontal, 

 arcuate, sharp, and deflexed basal lip ; inner lip expanded over 

 the umbilical tract, forming a thick white and shining callus, 

 and extending in a thin layer over the parietal wall. Operculum 

 subquadrangular, with a long and narrow muscular impression. 

 Diameter, 68 mm. ; height, 35 mm. Type. 

 Diameter. 70 mm. ; height, 58 mm. Another specimen ; 

 dead shell. 



The fig. shown above represents a row of teetli of the radula. 

 Type in my collection. 



II ah. — Ten miles west of Cuvier Island, in 32 fathoms. 

 Remarks. — A specimen obtained by trawling near Tiri- 

 tiri was identified by the late Captain Hutton as A', pallidula. 



