323 

 Synopsis of the species. 



A. Free orbital margin present. 



1. Adipose fin originating in advance of the anal. 

 Band of intermaxillary teeth transversely divi- 

 ded by a naked groove, behind which the 

 teeth are small and decumbent. Axillary pore 



present H. crassilabris p. 323. 



2. Adipose fin totally above the anal. Intermaxil- 

 laries with a compact band of villiform teeth. 

 No axillary pore. 



a. 8 gillrakers. A. 19 20, snout conical, strongly 



prominent, eye about 5 ! /2 i Q head H. macrorhynchus p. 324. 



b. 12 gillrakers. A. 15, snout flat, rounded, slightly 



prominent, eye about 7 in head H. velutinus p. 325. 



B. No free orbital margin, axillary pore present. 



1. Head 4 4V2i e Y e 7 8, dorsal spine equal to 



or shorter than head and equal to pectoral spine H. borneensis p. 327. 



2. Head 3 2 /5-3V4- 



0. eye 8, dorsal spine 2 / 3 of head, equal to 



pectoral spine " H, macrocephalus p. 327. 



b. eye n 12, dorsal spine equal to or shorter 



than head, longer than pectoral spine . . . . H. intermedius p. 328. 



Fig. 141. Hemipimelodus velutlmts M. Web. About X '/> 



I. Hemipimelodus crassilabris Ramsay & Ogilby. 



Hemipimelodus crassilabris Ramsay & Ogilby, Proc. Linn. Soc. N. S. Wales (2). 



I. 1886, p. 18. 

 Pachyula crassilabris I. Douglas Ogilby, Proc. Linn. Soc. N. S. Whales. 1898, p. 33. 



B. 5; D. I. 7; A. 18; P. I. 12; V. 6. 



Height 5V 3 in the total length, head 4 3 / 7 in the total length, 

 depressed anteriorly, wider than deep, the nuchal region ele- 

 vated. Width of head equal to head without snout. Occiput 

 feebly and obtusely ridged. Occipital process triangular, its 



