94 Transactions of the Boyal Society of South Africa. 
ranging from the Aptian to Senonian in such countries as Britain, 
Europe, British and Portuguese East Africa, Socotra and Tunis ; 
Syncyclonema orbicularis, ranging from Neocomian to Senonian, is 
found in Britain and European countries ; Veniella forbesiana 
of Stoliczka, a striking shell of the Trichinopoly group of Southern 
India has also been recorded from the Senonian of Angola in South- 
western Africa, and from the Turonian and Senonian of Tunis, 
Northern Africa, and allied forms are found in the North American 
Senonian ; Meretrix anclersoui, a new species, is regarded as 
being related to Cytherea fabulina of Stoliczka from the Utatur 
and Trichinopoly groups of India, as well as to J. de C. Sowerby's 
shells, Venus faba and V. ovalis from the British Albian ; a form 
of Meretrix allied to caperata is also recorded, nothing like it being 
found in India, whilst the true condition of the species is typical 
of British Albian deposits ; Protocardia hillana of J. Sowerby 
has a range extending from Albian to Senonian times and is 
known from Britain, Europe, and North and South-East Africa 
as well as from the Trichinopoly group of India. Lartet's 
Pholaclomya luynesi, a peculiar form of the genus without radial 
striations is only recorded from the Cenomanian of Syria ; Pholadomya 
vignesi ranges from Cenomanian to Turonian, having been described 
by Lartet from Syria, and by Kossmat from Socotra, although 
unknown in the Indian Cretaceous ; lastly, Pleuromya africana 
seems essentially the same as that described by Mr. Etheridge 
from the Umsinene deposits of Zululand. 
From this partial analysis and with the assistance of the Dis- 
tribution Table it may be readily seen that the Manuan Creek fauna, 
comprising a total of thirty-four species, contains twelve or thirteen 
similar or related forms which belong to the Indian Cretaceous. 
Of these a few are Utatur, a greater number are Trichinopoly, 
and some are Ariyalur, whilst two of the species range throughout 
these different groups of the Upper Cretaceous. Through such 
a species as Veniella forbesiana, a direct connection can be traced 
between the Trichinopoly group of Southern India, Zululand, and 
Angola on the south-western portion of Africa, from whence Dr. Paul 
Choffat records it as occurring in rocks of Senonian age. Eelated 
forms, under the generic names of Boudairia dandiVenilia are also found 
in Northern Africa and United States. This, in addition to a few 
further species, would appear to be in favour of a Senonian horizon 
for the Manuan Creek fauna, although several of the species bear a 
distinctly older appearance, such as Exogyra conica, Neithea quadri- 
costata, Pholadomya vignesi, Avellana incrassata, &c., some of which 
extend from Albian into rocks of Cenomanian and Turonian age, 
