Manwick.—Genus Glycymeris in Tertiary of New Zealand. 67 
Material.—Six specimens, none of which is perfect. 
Locality. —Conglomerate band in Waiarekan tuffs about 50 ft. below the 
diatomaceous ooze, 400 yards west of Lorne Railway-station, North Otago. 
(J. Marwick.) 
The actual specimens are from an диер above the road near the base 
of the hill, apparently a slip from a 
This shell has a more аа: ia than G. laticostata ; it is also 
much smaller; so that young individuals of the latter may be distinguished 
by their little-developed ligamental area. In most specimens there is an 
inclination towards a subtriangular shape, and very little difference of width 
between the posterior and anterior ribs. 
Glycymeris chambersi Marshall. (Plate 1, fig. 7.) 
1909. ээм. rers si Marshall, Subantarctic Islands of N.Z., 
701. 
1915. ичтеп ет а & G.): Suter, N.Z. Geol. Surv. Pal. 
Bull. No. 2, 
Suter thought that this e was the ovate form of G. laticostata, but 
7 mm. wide; ‘while an equal area of G. laticostata has "de about 7. In 
addition, the rib-interstices on the middle of the disc are deeper, ul the 
shoulders are inclined to be narrower and more rounded. 
e type-material consists of a pair of valves (one of which is incom- 
plete), enelosing a larger right valve; the heights are 56 mm. and 62 mm. 
respectively. From the great eneroachment of the area on the teeth, the 
latter appears to be a fully-grown shell. 
This species seems to be intermediate between G. lornensis and 
G. laticostata ; it is nearer he these than to G. traversi 
ality.— Campbell Isla 
Holotype in School of iin collection, Otago University. 
Species not good enough for Full Description. 
Glycymeris sp. A. (Plate 1, figs. 2, 3.) 
From loc. 1041, Uruti, North Taranaki. 
Mr. L. ollected a shell of this group which, from its trigonal 
shape, wide ribs, and great inflation, especially towards the beaks, must 
be a new species. The imperfect state of the specimen, however, 
makes it advisable to withhold full specific designation. 
Glycymeris sp. B. (Plate 1, figs. 5, 6.) 
From Pakaurangi Point, Kaipara (Bartrum). 
This very small shell, of only 8 mm. height, has a thickness (one valve) 
of 3 mm., and so is much too inflated to be the young of any of the named 
species. qe is not necessarily a young shell. Until this point is settled 
by the collecting С more specimens, specific description and naming had 
better be held o 
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