235 



No axillary poms. First branchial arch with a membrane along 

 its innerside and with 1 1 gillrakers on its horizontal branch ; 

 second and third branchial arch without processes on the sides 

 facing each other. Gillmembranes united, free from isthmus. 

 Branchiostegals 7. 



Fig. 94. Porochilus obbesi M. Web. 



i. Porochilus obbesi M. Web. 



Porochilus Obbesi Max Weber, Nova Guinea IX. livr. IV 1913. p. 523. 



B. 7; D. I. 4; Caudodorsal -f C. + A. = 1 12; A. circa 80 ; 

 P. I. 78; V. II 12. 



Height about 5*/ 2 , head 6 1 / 3 . Dorsal profile sloping down in 

 a straight line from dorsal to snout, posterior profile of back 

 slightly convex. Eye 4, a little shorter than snout, in second 

 ! / 4 of head. Nasal barbels about as long as head, mandibulary 

 barbels extend on pectorals, mental ones ! / 5 shorter than 



mandibulary ones, maxillary barbels 

 the shortest of all. Dorsal as long as 

 head without snout; its spine nearly 

 equalling postorbital part of head. 

 Ventrals rounded, as long as dorsal 

 spine, reaching anal, the height of 

 which is ! /4 l ess than length of head, 

 pectorals 3 / 4 of head, reaching base of 

 Fig. 95. Porochilus obbesi. ventr als, in males a little longer. Colour 



X 3- Anterior part of head, 4.4.1 j -^ 



seen from below; n anterior lighter or darker brown, mottled with 

 nostril, perforating the upper- irregular darker patches. A large dark 



lip, mx maxillary, md mandi- *. t_ _ _ .1 i t_ ^.u 



bulary, m mental barbel; o eye. Spot behind the operculum, where the 



airbladder lies close under the skin 



which is a more or less protruding. Length about 120 mm. 

 Habitat: South New Guinea (Lorentz river!). 



