Fauna and Stratigraphy of the Stormberg Series. 339 



me to be rather too small, while the interopercular is much too 

 large. Above the anterior end of the long preopercular is an elon- 

 gated suborbital smaller in size than the postorbital. The portion 

 of the figure dealing with this region is, in my opinion, erroneous. 



The lower jaw has an elongated triangular dentary and a power- 

 ful angular. 



The palato-pterygo-quadrate arch is fully ossified, but the exact 

 limits of the different elements cannot be made out with certainty. 

 There is a long narrow bone below the quadrate stretching from 

 the articular region to the lower end of the hyomandibular. This 

 would seem to be the symplectic. The hyomandibular is a power- 

 ful bone and fairly similar to that of the ordinary Teleosteans. In 

 addition to supporting the opercular bones and the quadrate arch, 

 it supports the hyoid arch. There is a large quadrangular epihyal 

 and an elongate triangular ceratohyal. The interhyal has probably 

 been cartilaginous, as has also probably been the hypohyal and the 

 urohyal. Under the subopercular are six branchiostegals. 



The clavicular arch consists of the clavicle, supraclavicle, post- 

 clavicle and post-temporal, but there seems to be no trace of an 

 infraclavicle. A mucous canal crosses the supraclavicle obliquely as 

 in the Palaeoniscias. There is a small ossification which possibly 

 may be the coracoid as is thought by Schellwien. 



The pectoral fin consists of 14 rays with 5 or 6 fulcra in front. 

 The rays are much flattened distally, but apparently not branched. 



The pelvic fin consists of 7 rays which are branched distally. 

 The fulcra are powerful. 



The dorsal fin begins exactly in the middle of the back of the 

 fish, and consists of 13 rays, of which the last 3 are small. All the 

 rays are branched distally and articulated. In front are a row of 

 very powerful fulcra, 9 in number. The anal fin consists of 9 rays 

 with 9 powerful fulcra in front. 



The caudal fin consists of 16 rays, all of which are branched and 

 articulated. Below and in front of the first ray are 14 fulcra, and 

 14 fulcra also lie above the tail, gradually passing into the dorsal 

 scales in front. The rays of the dorsal, anal, and caudal fins are 

 double. Though the tail is in a sense brevi-heterocercal the upper 

 portion is really continued as a long, slender process bearing small 

 rhombic scales about 20 mm. beyond the end of the middle of 

 the tail." 



Type. In British Museum. 



Locality. Ficksburg, 0. F. S. 



Horizon. Cave Sandstone. 



22 



