A CONTRIBUTION TO THE ICHTHYOLOGY 173 



ments given by Zietz in his original description, differs from 

 argenteus by the somewhat longer head and larger eye and 

 by different number of rays in the first dorsal and in the pec- 

 toral fins. 



Copidoglanis ohscurus n. sp. 



Localities: Glencoe, Jan. 1893. Seven specimens, 192 — 88mm. 

 Hermit Hill, Aug. 

 18th. 1894. . . . Five specimens, 182—155 mm. 



B. 7; 1. D. I. 4 (forth ray bifid to base); 2. D. + C. + A. 

 about 105; P. 1. 10; V. 11. 



Height about 5 (5,0 — 5,3) in total length (s. c), head 4,6 

 — 4,9 in the same. Snout broadly rounded, about 1,6 to 1,7 as 

 broad as long (when the width is measured before the eyes and 

 the length in a straight dorsal line from the tip of the upper 

 jaw to a line connecting the anterior border of the eyes). Length 

 of snout from eye 2,7 — 2,8 in length of head. Diameter of eye 

 5,7—6,2 in length of head, 2 — 2,4 in snout. The eyes are 

 2,5 — 2,7 diameters apart. Bony interorbital region broad, 2 

 eye- diameters or somewhat more. It is contained 2,8 in the 

 length of the head and 1 — 1,1 in the snout. 



Nasal barbels 1,4—1,8 in head, reaching IVs— 2 eye- 

 diameters behind the eye. Maxillary barbels 1,8—2,2 in head, 

 reaching ^/2 — IV5 eye- diameters behind the eye. Outer mandi- 

 bular barbels 1 — l^s in head, reaching base of pectorals; inner 

 mandibular barbels somewhat shorter. 



Lips papillated. Teeth of an orange colour, those on the 

 vomer and in the lower jaw large and very blunt. Maxillary 

 teeth in two streched oval patches. The vomerine teeth are 

 arranged in a large, circular patch of subequal length and width, 

 its diameter ist V3 of the bony interorbital space. (Fig 5). Teeth 

 of lower jaw in two large, nearly rhomboidal patches, the longest 

 diagonal of which equals the diameter of the vomerine group. 

 The teeth on the inner half are larger than those on the outer one. 



