A CONTRIBUTION TO THE ICHTHYOLOGY 



171 



barbels reach somewhat behind the eye and are contained 1,8 

 (1,5 — 2) in length of head; the maxillary barbels from gill- 

 opening to base of pectoral spine, about 1^/2 in head; the outer 

 mandibularies to base of pectorals, 1,1 — 1,2 in head; the inner 

 mandibularies behind the gill-membranes. Height of first dorsal 

 fin 1,2 — 1,4 in height of body, praedorsal region about SVs 

 (3,4 — 4,1) in total length s. c. ; dorsal spine rough on ist an- 

 terior border, serrated on the upper half of its hindborder. The 

 length of that spine is contained about 1^/5 to 2 limes in the 

 length of the head. Pecto- 

 rals 1 Va in head, reaching 

 ventrals. Ventrals rounded, 

 half as long as head, excee- 

 ding origin of anal with 

 about half their length. The 

 teeth are brown-tipped. The 

 intermaxillary teeth are 

 pointed and arranged in 

 two confluent patches. The blunt vomerin teeth form a semicircular 

 disc, rounded anteriorly and rectilinear behind. (Fig. 4.) In the 

 lower jaw, there is an outer row of pointed teeth and behind 

 this, two ovoid patches of blunt teeth. First branchial arch with 

 7-^-16 gillrakers, the longest of them being shorter than the 

 opposite filaments and contained two times in the length of the 

 eye. Distance from origin of the short caudo-dorsal to the tip 

 of the tail contained 4,7 times in the total length (incl. cau- 

 dal). Axillary pore moderate. Color in spirits very light brown, 

 lighter below. 



This Cat-fish belongs to that group of the genus Copido- 

 glanis which, on account of its reduced caudodorsal fin, by some 

 authors has been given the rank of a. separate genus, Neosilurus. 

 There are described from Australia four species of the group in 

 question, and three other species, 1 think, may also, if distinct, 

 be referred to the same: 



Fig. 3. Anodontiglanis dahli Rend., head 

 seen from above 



