A CONTRIBUTION TO THE ICHTHYOLOGY 169 



prominent, perforated at its upper border by the short tubular 

 anterior nostrils, which look forewards and sidewards. The slit- 

 like posterior nostrils immediately behind the nasal barbels. A 

 maxillary barbel near the end of the upper lip, two mandibular 

 and two mental barbels below the lower lip. Eye not covered 

 by skin, with free lid. First dorsal behind origin of pectorals. 

 Origin of second dorsal above origin of ventrals. It is many- 

 rayed, and like the anal confluent with the caudal. Ventrals 

 with 12 rays. No teeth in the jaws, nor on the vomer or the 

 palatines. Pharyngeal teeth well developed. An axillary porus. 

 Pseudobranchiae present. ö-f-H flattened, leaf-shaped gillrakers 

 on the first arch. The second and third branchial arches with 

 a series of long processes, covering the base of the gill-laminae 

 on the sides facing each other. Branchiostegals ten. Gillmem- 

 branes confluent in the middle, only the anterior portion of their 

 confluent part connected with the isthmus. Dendritic organ 

 absent. 



Type: Anodontiglanis dahli n. sp. 



This new genus evidently comes nearest to Cnidoglanis 

 GüNTH. and perhaps also to the Malayian and New Guinean 

 genus Paraplotosus (Blkr) De Beaufort. Apart from other 

 differences, it is, however, easily distinguished by the absence of 

 teeth and of a praeanal dendritic organ. In the latter respect, it 

 resembles the genus Copidoglanis Günth. from which it differs 

 in the absence of teeth, in the structure of the branchial processes, 

 in the gill-membranes, in the extension of the caudodorsal fin, etc. 



Anodontiglanis dahli n. sp. (Fig. 2 and 3). 



Localities: Glencoe, Jan. 1895. Two specimens, 152 (type) and 



141 mm. 

 Daly River, July 

 1894 One specimen, about 150 mm. 



1. D. I. 5; 2. D. about 90; P. I. 11; V. 12. 



