364 GASTROPODA. [Pectinibranckia. 



'2. Vexillum pseudomarginatum, 11. sp. Plat* 1 18. fig. 5. 



Yulpecula marr/inata, Suter, T.N.Z.I., xl, 1007 (1908), 349, pi. 27, f. 8: nut 

 <if Hutton. 



Shell small, fusiform, rather thin, axially costate and spirally 

 lirate. Sculpture consisting of fine spiral lira', usually 2 below the 

 suture broader and much more prominent, about 7 on the penultimate 

 whorl ; they are again more conspicuous on the base ; straight, angu- 

 larly rounded axial riblets extend over all the whorls, the protoconch 

 excepted, 14 to 15 on a whorl, and they vanish only on approaching 

 the base, the interstices of about the same width as the riblets ; only 

 the two stronger spirals below the suture pass over the axials. Colour 

 white. Spire elevated conic, about the same height as the aperture ; 

 outlines slightly convex. Protoconch small, papillate, of 1| smooth 

 and convex whorls, the nucleus excentric. Whorls 5 to 6. the last 

 high, moderately convex, the base distinctly contracted. Suture im- 

 pressed, margined below. Aperture narrow, rather broadly angled 

 above, with a short widely open and slightly recurved canal below, 

 its base slightly notched. Outer lip thin and sharp, lightly convex, 

 contracted below. Columella subvertical. with 4 equally spaced and 

 slightly oblique plaits, which decrease in size towards the base : the 

 uppermost plait continued as a strong riblet over the neck. Inner Up 

 thin and narrow, spreading over the concave parietal wall. 



Diameter, 2-5 mm. ; height. 6-2 mm. (shell of 5 whorls). 



Animal unknown. 



Type in my collection. 



Halt. Five miles south of Cuvier Island, in 38 fathoms (Captain 

 Bollons). 



Fossil in the Pliocene of Wangaimi. 



Subsp. angulatum. Suter, 1908. 



Vnlpcula mnn/inut ri>i</ulrtt(i. Suter, T.N./.I., xl, 1907 (1908), 350. 



Distinguished from the species by the following characters : the 

 shell is slight!}' more ventricose, all the whorls below the protoconch 

 distinctly shouldered ; the axial costa 1 somewhat nodulous upon the 

 carina ; the spiral lir* are much more numerous, and consequently 

 finer ; the suture is undulating, more or less distinctly margined 

 below, but the 2 more prominent cinguli are wanting ; the outer lip 

 is angled above. 



Diameter, 2-5 mm. ; height, 5-5 mm. (specimen of 5 whorls). 



Animal unknown. 



Type in my collection. 



Hab. Five miles south of Cuvier Island, in 38 fathoms, type 

 (Captain Bollons). Apparently rarer than the species. 



