240 



slightly concave from nape to snout. Back more or less convex. 

 Eye in the second ] / 4 of the head, 5*/ 2 6 in head, about i '/ 2 

 times in snout, 3 times or less in the slightly convex inter- 

 orbital space. Lips with lamellated papillae. Nasal and maxil- 

 lary barbels equal in length, 2 / 3 of head ; mandibulary barbels 

 reaching on pectorals, mental barbels slightly shorter. Height 

 of dorsal equal to head without snout. Origin of dorsal slightly 

 behind ventrals. Dorsal spine entire in front, its hindborder 

 with a few weak teeth, shorter than postorbital part of the 

 head. Anal as high as dorsal spine. Caudodorsal rays few in 

 number, disappearing rapidly in a short low fat pad. Ventrals 

 rounded, reaching on the anal, 2'/ 2 times in head. Pectorals as 

 long as head without snout, reaching far behind origin of ven- 

 trals, their spine with distinct teeth on its inner border. Maxillary 

 teeth in two patches, twice as long as broad, those in the 

 front row conical, the rest cylindrical with rounded tips. The 

 inframaxillary teeth in two oval patches, the innersides of 

 which are concave, the anterior teeth more or less conical, the 

 other ones with rounded tips. Vomerine teeth molar, in a large 

 rounded patch, which is anteriorly more curved than posteriorly. 

 Some of the teeth are yellow- or brown- tipped. First bran- 

 chial arch with 20 gillrakers on the lower branch, the membrane 

 of which has thick papillae along its free border, inwards of which 

 a row of short tubercles. The belly and underside of head 

 white, otherwise brown, back blackish, mottled with dark. 

 Median fins dark. Underside of paired fins lighter. Barbels 

 blackish. Length 240 mm. 



Habitat: South New Guinea (Merauke!). In ponds. 



4. Copidoglanis ater (Perugia). [Fig. 97. p. 236 and 98. p. 237]. 



Lambertia atra Perugia, Ann. Mus. Civ. Geneva (2) XIV. 1894, p. 551. 

 Neosilurus mediobarbis Douglas Ogilby, Ann. Queens!. Mus. N. 9. 1908, p. 12. 

 Neosilurus mediobarbis Max Weber, Abh. Senckenb. Naturf. Gesellsch. XXXIV. 



I9II, p. 21. 



Copidoglanis ater Max Weber, Nova Guinea IX. livr. IV, 1913, p. 530. 



B. 10; i. D. I. 4 5; Caudodorsal -j~ C. + A. circa 120; 

 A. 8288; P. I. 1012; V. 1214. 



Height 5 7, head 5 5 J / 4 - Dorsal profile sloping down from 

 first dorsal, with a little convexity to the eye. Profile of the 

 snout slightly concave. Profile behind first dorsal more or less 



