TETSONID^. 
165 
Genus CYCLOBATIS, Egerton. 
[Proc. Geol. Soc. vol. iv. 1844, p. 442.] 
Disk circular or oval; tail very short, only slightly projecting, 
without fins or spine. Kays of paired fins few and well sepa- 
rated ; pectorals united in front of the head ; pelvics relatively small, 
and scarcely extending backwards beyond the posterior extremity 
of the pectorals. Pelvic arch with enormous pre-pubic and iliac 
processes. Body with one or more median longitudinal series of 
large spinous tubercles extending from the pectoral arch posteriorly; 
and the remainder of the trunk and fins more or less sparsely covered 
with minute prickles. Teeth small, flattened, smooth, either dia- 
mond-shaped or discoidal. 
Cyclobatis oligodactylus, Egerton. 
1844. Cyclobatis oligodactylus, Sir P. Egerton, loc. cit. p. 442, pi. v. 
1850. Cyclobatis oligodactylus, F. J. Pictet, Poiss. Foss. M. Liban. 
p. 66, pi. X. fig. 4. 
1887. Cyclobatis oligodactylus, J. W. Davis, Trans. Roy. Dublin Soc. 
[2] vol. iii. p. 491, pi. xxi. fig. 3. 
1887. Cyclobatis oligodactylus, A. S. Woodward, Geo). Mag. [3] vol. iv. 
p.608. 
1888. Cyclobatis oligodactylus, A. S. Woodward, Proc. Zool. Soc. p. 128 
(fig. of pelvis). 
Type, Nearly complete skeleton ; British Museum. 
Fin-rays comparatively slender, widely spaced, and not more than 
50 in number in the pectorals. Trunk nearly or quite three times 
as long as broad. 
Form. ^ Loc. TJ. Cretaceous (Senonian) : Hakel and Djebail, 
Mt. Lebanon. 
P. 601. Type specimen, male. From Djebail. Egerton Coll. 
P. 4009. Complete skeleton, female ; from Hakel. The proportions 
scarcely differ from those of the male, the first being only 
slightly more elongated. Purchased, 1883. 
P. 99. Disk, apparently female, wanting parts anterior to mouth ; 
from Hakel. This specimen is referred to by the present 
writer, loc. cit. Purchased, 1880. 
Cyclobatis major, Davis. 
1887. Cyclobatis major, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. iii. p. 491, pi. xxi. fig. 1. 
1887. Cyclobatis major, A. S. Woodward, Geol. Mag. [3] vol. iv. 
p. 608. 
