FixLAy.—New Shells from New Zealand Tertiary Beds. 479 
The nearest Recent relative to this shell is the massive iri of Chione 
stuchburyt (Gray) found at the Auckland Islands. From this it is easily 
distinguished by its different dimensions, lunule, агг аста and pallial 
sinus. Mr. Marwick has collected, in the Hawke' s Bay District, great 
numbers of a form which in thickness is intermediate between C. stuchburyi 
(Gray) and the present € but otherwise is nearer the Recent shell. 
Since typical forms of C. stuchbury? are found fossil in the Greta beds, which 
are older than those at Clifden, C. crassitesta is probably not ancestral but 
an offshoot from the C. stuchburyi line. 
Conus (Lithoconus) triangularis n. sp. (Plate 48, figs. 10a, 10b.) 
Shell small, apparently rather thin and fragile. Protoconch lost in both 
specimens seen, but apparently projecting above perfectly flat spire. Whorls 
at least 6, with pos ve es hardly distinguishable from M D 
indented iu two places—just 5s keel and a little above canal. cue. 
Ves and that part of body-whorl above keel, bear 4 strong spiral cords, 
inner and outer are wider and flatter than middle pair; the rest 
of Body-whort covered over whole surface with rather strong and closely-set 
spiral cords, low and rounded, a little less than their own width apart 
Aperture filled with hard matrix, but evidently very narrow ; columella 
twisted in front, Posterior sinus, as indicated by lines of growth, is 
apparently extremely stallow, and removed from suture. 
Height, th, The paratype has the corresponding 
dimensions 17 x 164 mm 
Type and one paratype, from Kakanui (on the beach near the quarry, 
from Ads below the limestone), in author's collection. 
This is the second representative of Lithoconus that has been found in 
New Zealand. Conus (Lithoconus) abruptus Marshall occurs at Pakaurangi 
Point, but the Kakanui shell is not related to it except subgenerically, 
differing in its squat shape, much more acute keel, and totally different 
shell is sharper still and the angle somewhat smaller. The Australian shell 
is rather elongate (33 х 20 mm.), approaching more the shape of C. 
owe (20x11 mm.), the ratios of height to width being—Conus dodi 
Marshall — 1-82; Conus dennanti Tate — 1-65 ; Comes triangularis Finlay 
E 
remove e from the vicinity ot C. “abrupt us Marshall, but indicate its very 
close (sen to C. triangularis Finlay n. sp., the меен being in 
