Cretaceous Gastrojjoda, and Pelecypoda from ZiiUdand. 55 
With only one specimen, and that probably from its small size an 
immature one, it is difficult to institute comparisons so as to under- 
stand its relationship to any described species. The sculpture 
characters, however, seem to connect it with such a form as 
Exogyra flahellata of Goldfuss, a characteristic Cenomanian shell 
of European and Northern African localities. 
The shell from Zululand is perhaps shorter than the normal form 
of E. flahellata although such a distinction may be due to age. The 
specimen also resembles Ostrea houssingaidti, Orbigny, as inter- 
preted by Pictet and Eenevier from the Aptian rocks of Switzerland 
(Desc. Foss. Terr. Aptien Perte du Ehone, Mat. Pal. Suisse, 1858, 
pi. 19, fig. 5, p. 140). 
Locality. — Tributaries of the Manuan Creek, 
Family PECTINID^. 
CxENUS NEITHEA, Drouet, 1825. 
Mem. Soc Linn., Paris, 1825, vol. 3, p. 186. 
Neithea quadeicostata, J. Sowerby. 
Plate II., figs. 18-21. 
Pecten quadricostata, J. Sowerby, Mineral Conchology, 1814, vol. 1, 
pi. 56, figs. 1, 2, p. 121 (lion Janira quadricostata, Orbigny, 1846). 
Neithea quadricostatus, H. G. Bronn, Lethaea Geognostica, 1851-52, 
ed. 3, vol. 2, part v., p. 277, pi. 30, fig. 16. 
Janira faucignyana, Pictet and Koux, Desc. Mollusques Foss. 
Gres Verts Geneve, 1853, pi. 45, fig. 2, p. 505. 
Janira tricostata, Coquand, Geologie et Paleontologie Constantine, 
1862, pi. 13, figs. 3, 4, p. 219 (non Pecten tricostatus, Bayle, 1849). 
Pecten quadricostatus, P. M. Duncan, Quart. Journ. Geol. Soc, 1865, 
vol. xxi., p. 354 (S.E. Arabia and Bagh). 
Janira tricostata, Lartet, Explor. Geol. La Mer Morte, 1877, 
pi. xi., fig. 16, p. 136. 
Janira CO quandi, Peron, Bull. Soc. Geol. France, 1877, ser. 3, vol. 5, 
pi. 7, fig. 2, pp. 504, 534. 
Vola tricostata.^ Hamlin, Mem. Mus. Comp. Zoology, Harvard College, 
1884, vol. X., No. 3, p. 61. 
Neithea quadricostata, 0. A. White, Contributions to the Palaeont- 
ology of Brazil, Archiv. Mus. Nac. Bio de Janeiro, 1888, vol. 7, 
pi. 4, figs. 1, 2, p. 37. 
Vola quadricostata, Blanckenhorn, Beitrage zur Geologie Syriens, 
1890, p. 77. 
