Cretaceous Gastropoda, and Pelecyyoda from ZuUdand. 33 
in which some obscure testiferous structure can be traced near the 
postero- ventral angulation. So far as can be observed from such an 
imperfect specimen, and especially from its form, it seems to be 
more closely related to Area carinata of James Sowerby and its 
equivalent GucullcEa costellata of J. de C. Sowerby (Mineral Conch - 
ology, 1813, vol. 1, pi. 44, lower figures, p. 96 ; 1824, vol. 5, pi. 447, 
fig. 2, p. 67), a characteristic shell of Albian age as found in the 
Blackdown beds of England, than to any other form known to 
the present writer occurring in later Cretaceous deposits. In this 
way, also, the specimen is curiously like E. Tate's figure of Area 
{Gueidloea) jonesi from the Uitenhage beds (= Neocomian) of South 
Africa {Quart. Journ. Geol. Soc., 1867, vol. 23, pi. 9, fig. 9, p. 161), 
and very unlike any further species from the more modern Cretaceous 
deposits of the same region, such as have been described by Baily, 
Woods, &c., from Pondoland, and by Etheridge, iun.,from Zululand. 
It is quite impossible to say anything further with regard to Mr. t 
Anderson's specimen, and we can only await further material for its 
more precise determination. 
The specimen is out of the same matrix as contains Inoeeramus 
expansus, Baeulites (see p. 96), &c. 
Locality.— JJmkwelo^ne Hill. 
Genus TEIGONARCA, Conrad, 1862, emended Stohczka, 1871. 
Proc. Acad. Nat. Set., Philadelphia, 1862, No. 5, p. 289. 
Cretaceous Pelecypoda, Southern India, Palceontologia Indiea, 1871, 
p. 338. 
Trigonaeca ligeeiensis, Orbigny. 
Plate IV., figs. 13-18. 
Area ligeriensis, Orbigny, Pal. Fran^aise, Terr. Cretac^s Lamelli- 
branchia, 1844, vol. 3, pi. 317, figs. 1-3, p. 227 [not figs 4 and 5, 
which were afterwards excluded from this species by the same 
author, in the "Prodrome de Paleontologie," 1850, vol. 2, 
p. 164, No. 388] . 
Trigonoarea ligeriensis, Stoliczka, Cretaceous Pelecypoda Southern 
India, Pal. Indiea, 1871, p. 338 (reference only ; species does 
not occur in India). 
Gucidl(Ba {Trigonoarea) ligeriensis, Hamlin, Syrian Molluscan 
Fossils, Mem. Mus. Gomp. Zoology, Harvard Gollege, 1884, 
vol. X., No. 3, p. 58. 
Gucidlcea ligeriensis, Blanckenhorn, Beitrage Geologie Syriens, 
1890, p. 81 ; Dacque, PalcBontographica, 1903, vol. 30, part 2, 
fasc. 5, pi. 35, figs. 11, 12, p. 372. 
3 
