262 Annals of the South African Museum. 



there are none before the anal or caudal. Above the tail are, how- 

 ever, a row of very large fulcral scales. 



While this large Palaeoniscid seems different from any previously 

 described form, it is a little difficult to be sure in what genus it 

 ought to be placed. It resembles to some extent the New South 

 Wales genus Apateolepis and to a less extent the genus Myriolepis, 

 but it seems to agree so much more closely with the English Liassic 

 genus Oxygnatlms, that I think it better to place it, at least pro- 

 visionally, in that genus. The only points in which the South 

 African fish does not agree with Smith- Woodward's definition of 

 the genus Oxygnathus are in having the ridge scales of the upper 

 caudal lobe large and in the body scales being rather thin. 



DlCTYOPYGE FORMOSA, 11. Sp. 



This new species is represented by a single specimen in the 

 collection obtained by Dr. Kannemeyer. It is a small species, 

 measuring only about 70 mm. in length, and the head 14 mm. 

 The body has a greatest depth of 13 mm. 



The head is not sufficiently well preserved to enable one to say 

 much about its structure. The orbit is placed well forward, and 

 both the maxilla and the dentary are long, and each has a row of 

 small uniform teeth. 



The pectoral fin is composed of about 11 rays, of which the 4th 

 is longest and the first 3 short. There are well-developed fulcra in 

 front. The fin rays are not manifestly branched, and it is doubtful 

 if they are articulated. The pelvic fin is not well preserved. The 

 dorsal fin is only very slightly in front of the anal. It is composed 

 of 24 rays, of which the 8th is longest. There are no fulcra. The 

 anal fin is composed of about 36 rays, of which the 8th is the 

 longest. A few fulcral rays are present in front of the distal part 

 of the fin. The caudal fin is slightly imperfect, but enough is 

 preserved to show that it is a variety of the abbreviate hetero- 

 cercal. The axial portion of the upper lobe is longer than in typical 

 Dictyopyge, but distinctly not Palceoniscid. 



The scales are well developed and rhomboidal. They are charac- 

 terised by the presence of two prominent ridges, which are directed 

 backwards. The dorsal scales are perhaps slightly enlarged, and 

 two large scales lie in front of the dorsal and at least one in front of 

 the anal. 



SEMIONOTUS CAPENSIS, Smith-Woodward. 



In 1888 Smith- Woodward (9) described, under the above name, 

 some fossil fishes from the Stormberg beds of the Drakensberg Eange. 



