F. R. Cowper Reed—Fuauna of the Bokkeveld Beds. 225 
not to be present in South America, while the latter region possesses 
others (Zechomya, Sphenotus, Cimitaria, ete.) which haye not so far 
been definitely recognised in South Africa. But negative evidence of 
this kind under the circumstances is of little import. 
Of Bokkeveld species of mollusca allied to or identical| with North 
American Devonian forms, the following list may be given :— 
Sourn Arrica. NortuH AMERICA. 
Orthoceras bokkeveldensis sip O. typum, Roem. pe 
El uvhipuhahtecte er f Pl. lucina, Hall. Up. Held. and Ham. 
Pca + 1 Pl. Hebe, Hall. Up. Held. ' 
Loxonema sp. ... sar ois L. delphicola, Hall. Ham. :: 
Tentaculites crotalinus ... Bee T. bellulus, Hall. Ham. 
Hypolithes subequalis ... any H. ligea, Hall. Schoharie. 
Conularia africana ae 50% C. elegantula, Meck. Up. Held. 
C. cf. undulata ... aac fs C. undulata, Hall. Ham. 
Nuculites capensis Soe .. ~JV. oblongatus, Conr. Ham. 
NN. martialis ... sc ae NV. triqueter, Hall. Ham. 
N. cf. Smithi ... Aas en NV. elongatus, Conr. Ham.’ ’ 
ee \ See ae P. fecunda, Hall.. Ham. 
P. aft. constricta ae 25: P. constricta, Conr. . Ham. 
Nuculana (Leda) inornata ae L. diversa, Hall. Ham. 
Buchiola subpalmata ... cee B. speciosa, Hall. Genn. 
Orthonota aft. undulata es O. undulata, Conr. Ham. 
Cis { G. alveata, Conr.. Ham. 
PE Eee ces a WG. rata Halls .. Up, sHeld..anth Ham, 
Nyassa arguta ... a S08 NV. arguta, Hall. Ham. 
- Ae G. depressus, Hall. Chem. 
Glossites aft. depressus ... oct { GC. Tiyuaks Foil, Chen: 
Modiomorpha Baini ... 20 IM. alta, Conr. Ham. 
Actinopteria aft. Boydi... Zee A. Boydi, Conr. Ham. 
There is a plain Hamiltonian (Middle Devonian) facies in the 
mollusca of the Bokkeveld Beds which is brought out by the above 
list. The same feature is noticeable to a certain extent in the 
Devonian of South America, especially in Brazil, according to Katzer 
Ghz p2it99). PL 
Haug (19) has recently recorded Conularia africana and ‘Actinopteria 
aff. Boydi from the Devonian of the Central Sahara in addition to the 
brachiopods and trilobites above mentioned, and the evidence for the 
occurrence of the Bokkeveld fauna in Northern Africa is thus gaining 
strength. . 
(d) Miscellaneous. 
The remaining few fossils from the Bokkeveld Beds belong to 
various groups, and comprise the following :— 
Serpulites rica, Salter. Ophiuroids (undescribed). 
Ophioerinus Stangeri, Salter. Zaphrentis zebra, Schwarz. 
GENERAL CHARACTERS OF THE Fauna. 
Reviewing the fauna as a whole, we note the abundance of species 
of brachiopods, lamellibranchs, and trilobites, and this abundance is 
also expressed in individuals. These groups compose the bulk of the 
whole fauna. Cephalopods are very rare, and corals are practically 
absent. Certain genera predominate in the three main groups :: 
DECADE V.—VOL. IV.—wNO. V. 16 
