Marwick.—Naticidae and Naricidae of New Zealand. 513 
Both the late Mr. R. Murdoch and Dr. Marshall sedie that ios had 
never seen a similar shell in all their material. The reddish-brown 
staining on the type is not que the same as that of any specimens the 
proof that the shell is a foreign one which became mixed with coed 
Zealand specimens; but а things did happen to Hutton (e.g., Trigon 
semiund Raeta pers Chione lamellata, &c.), so that care 96и 
be taken in accepting doubtful species. 
5. Genus GLOBISINUM n. gen. 
Shell large, globose, thin; spire low; whorls convex, spirally striated ; 
protoconch of two and a half whorls sharply defined from the neanic shell, 
are foreshadowed; suture abutting; aperture large, ovate; outer lip 
thin, straight or slightly convex, scarcely retracted to suture, inclined at 
a 25° from the vertical; inner lip strongly sinuous with thin varnish 
i wall ; umbilicus variable, sometimes absent, when 
ed ux overlain by thin inner lip; in the genotype there is no umbilicus. 
Type: Sigaretus drewi Murdoc 
Differs Кой бен s. str. in its globular shape, sinuous columella, 
and much less inclined lip. The shape is also different from Eun 
which is longitudinally oval and has a flattened body, à more distended 
aperture, and a different curve to the inner lip. 
Sigaretotrema Sacco, 1890, approaches Globisinum in shape, though 
the body-whorl is still slightly € the outer lip is more inclined, 
н (Eu icum бине B B (Eunatici ina) und m 
(Hutton) 5. аат isa го Зд keeled shell here located under 
agre 
Eunaticina, and form a well-defined group, to which should be added 
Ampullina spiralis eg from the Wangaloa beds. 
of these shells has been a source of considerable 
u 
vetta but later to ina.  Sigaretus was also used by Murdoch 
(1899, p. 320). In a footnote to the latter's дын description, the 
editor of the Рохан of the Ma ical says, “ In attributing 
lacological Societ 
this shell to the genus Sigaretus the author has evidently followed Hutton, 
and, owing to the raped of communicating with him in time for 
как Ойу we have it so, merely adding a ‘?’; but it is evidently 
nearer to Am pulina.” 
e generic position under Ampullina was therefore used by Suter 
(1913, 1914, 1915) and by Marshall (1917), but was changed back to Sinum 
