131 



On a Fossil Marine Diatomaceous Deposit from Oamaru, 



Otago, New Zealand. 



By E. Grove and G. Sturt, F.F.R.M.S. 



Appendix. 



Plates X, XI, XII, XIII, XIV. 



Since the publication of Parts I, II, and III, of this paper a 

 considerable number of additional species have been discovered, 

 a list of which we now give. 



Amphora tessellata, n. sp., Gr. and St. — Rectangular, ends 

 rounded. Inner margin straight. Median line incurved with 

 distinct nodule. Surface covered with large granules, about 

 11 in '001", arranged rectangularly like those of Plagiogramma 

 tesselatum. Length of specimen figured '004''. Rare. (PI. X, 

 Fig. 1.) 



A. interlineata, n. sp., Gr. and St. — Oval. Median line gently 

 incurved, nodules distinct. Stride parallel (about 22 in -001"), 

 divided longitudinally by a distinct clear space. Length '0055". 

 The apices of the valve project inwards prominently. Not 

 frequent. (PI. X, Fig. 2.) 



A. subpunctata, n. sp., Gr. and St. — Oval. Outer margin 

 convex, with stauros. Median line incurved. Striae dotted, about 

 15 in '001". Space between median line and inner margin 

 strewn with scattered puncta. Length -005". Rare. (PI. X, 

 Fig. 3.) 



A. contracta, Grun., var. ? — Closely resembles A. Schmidt's 

 figure ("Atl.," PI. 25, Fig. 62), but has coarser striae (about 

 14 in -001") . Length -006". Rare. (PI. X, Fig. 4.) 



A. obtusa, Greg. (" T. M. S.," Vol. iv, p. 72 ; Vol. v, PI. 1, 

 Fig. 34). — A large form resembling Gregory's species, but with 

 coarser striae, about 37 in -001". Length -006". Rare. 



Cocconeis nodulifer, n. sp., Gr. and St. — Valve small ; in out- 

 line and general characteristics resembling C. distorts, Greg. 

 (" Diat. of the Clyde," p. 18, PL 1, Fig. 23), but distinguished 



Journ. Q. M. C.j Series II, No. 19. 11 



