1905.] 



NATURAL SCIENCES OF PHILADELPHIA. 



511 



GIGANTOGOBIUS gen. nov. 

 Type Gigantogohins jordani sp. nov. 

 Scales small, about S8. Body depressed, especially head. Snout 

 broad and depressed. Dorsal spines not elevated. Ventrals separate. 

 Eyes small and superior. Largest of the Gobies. Rivers of Borneo. 

 {I'lya-^Talu?, gigantic; K'ci},3idi, the ancient name of tlie Goby.) 



81. Gigantogobius jordani sp. nov. ' 



Head 2%; depth 4; D. VI-i. 9, i; A. i. 8, i; P. 17; V. i. 5; scales 88 

 to base of caudal, and about 6 more on latter; scales about 32 in a 

 transverse series at origin of anal; depth of head about 2 in its length; 

 width of head If ; mandible 2; second dorsal spine 3f ; third branched 

 dorsal ray 2f ; base of s))inous dorsal 2|; base of rayed dorsal 2; first 

 branched anal ray 4i; sixth anal ray 2^; Ijase of anal 2|; length of 

 caudal If; least depth of caudal peduncle 2f-; pectoral 2; ventral 2^; 



Fig. 13. — Gigantogohius jordani Fowler. 



greatest width of trunk If; snout 3f in head from tip of upper jaw; 

 eye llf; maxillary 2^; interorbital space 3^; internasal space 4; 

 width of mouth 2. 



P)ody elongate, very robust and solid, depressed anteriorly, sides 

 rather convex and tail well compressed. Greatest depth at origin of 

 spinous dorsal. Profiles of tr\mk a little convex and similar. Caudal 

 peduncle strongly compressed and its least depth about 1^ in its length. 



Head very large, depressed, more or less flattened above and more 

 convex belo\A'. Upper profile concave from snout in front to occiput. 

 liOwer profile convex. Snout obtuse, broad, and a little convex above. 

 Upper jaw broad and well })roduced in front. Eye small, circular, lat- 

 erally superior, and placed about first third in total length of head. 

 Mandible large, convex and well produced. Mouth large, superior, 

 oblique, and gape curved in profile. Maxillar}- oljliciue and reaching 



