276 DE. C. T. TRECHMAM ON THE [vol. lxxix, 



the last locality, was 18 cm. long and 10"5 wide, and had attached 

 to it Aucella plicata, several Rhynchonellce, and a fragment of a 

 belemnite. 



My experience is that the Inocerami at Totara Point are very 

 much more like I. galoi than are the specimens of I. haasti from 

 Kohai Point, although, as I have previously remarked, one of 

 Bcehm's figures of I. galoi is very like a small I. haasti. 



Pecten (Camptonectes) cf. lens J. Sowerbv. (PI. XIII, 

 fig. 11.) 



Description. — The beak of the left and convex valve is small, 

 and projects rather above the hinge-area. The surface of the 

 shell is rather strongly arched in the region of the beak, but 

 becomes gently rounded towards the margins. The right valve is 

 much flatter than the left, and the beak less prominent. The 

 surface of the left valve is decorated Avith fine radial ribs which 

 diverge from a median line, and sweep regularly with a gentle 

 curve towards the anterior and posterior margins. About the 

 median line they tend to become wavy, the waviness being most 

 pronounced from about the middle of the shell to the lower 

 margin. The ribs cover the whole surface of the convex valve, 

 and the fine closely-set growth-lines tend to cut them up into a 

 series of very small nodes. Larger interruptions of growth occur 

 at varying intervals. The ornamentation of the right valve is 

 similar but less pronounced, and parts of the shell about the beak 

 and median line are almost smooth. 



Dimensions. — Length =about 39 mm. ; height =40 mm. 



Locality. — Totara Point, Kawhia ; one specimen with part of 

 both valves (unfortunately rather damaged round* the margin and 

 wings), and another imperfect right valve. 



Remarks. — This shell belongs to the group of P. lens, but 

 its fragmentary condition forbids an exact specific determination. 

 Several Pectens of this group are recorded from Puente del Inca 

 and Espinazito in the Argentine Cordillera. 1 P. laminatus 

 Sowerby occurs at Espinazito. 



Pecten (Syncycloneha) sp. (PI. XV, fig. 4.) 



Description. — Shell rather thick, subcircular in outline, de- 

 pressed, beak small;. the ears are small, approximately equal in 

 size, their outer borders curving slightly downwards from the 

 beak, the extremities somewhat raised. The shell-surface is gently 

 rounded and smooth, with one prominent growth-interruption and 

 other faint growth-lines which are visible also on the ears. 



Dimensions. — Length = 20 mm. ; height=20 mm. 



Locality.— Flag Hill, Hokonui Hills. Callovian (?). 



Remarks. — Only one valve has been obtained, probably a left 

 valve ; the drawing was made from a gutta-percha squeeze. This 

 shell seems to belong to the group of P. demissus Phillips. 



1 C. Gottsche, ' Ueber Jura-Versteinerungen aus der Argentinischen Cor- 

 dillera ' Palaeontographica, Suppl. iii (1878) p. 40 & pi. v, fig. 16, &c, 



