GOBIIDvE 39 



cc 1 . First dorsal spines six only. 

 tW 1 . Inner edge of shoulder girdle with two or more 



fleshy flaps or papillae Chonophorus. 



<W. No fleshy flaps or papillae on inner edge of 



shoulder girdle. 

 ee l . Caudal rounded or pointed, but not lanceolate 



and elongated. 



//*. Cheeks naked; opercles covered with small 

 scales; 38 to 54 scales in longitudinal 

 series; second dorsal and anal rays seven 



or eight .. Tamanka. 



ff. Cheeks and opercles both naked. 

 gg 1 . Scales ctenoid, 46 to 70. 



hh*. Nape naked to first dorsal; scales 46 

 to 48; cheeks with two longitudinal 



rows of papillae Amoya. 



hh*. Nape scaled to eyes except in one 

 species; 52 to 70 scales in lateral 

 series; no longitudinal rows of pa- 

 pillae on cheeks Amblygobius. 



gg 2 . Scales cycloid, 75 to 105; mouth large, 

 not opening widely, chin prominent. 



Cryptocentrus- 

 ee*. Caudal lanceolate, much lengthened. 



it 1 . Head and nape naked, with many conspic- 

 uous ridged lines and seams of papillae 

 on top and sides; body elongate; caudal 

 and pectoral very narrow, elongate, 

 pointed; scales 70; second dorsal I, 13; 



anal I, 11 Galera. 



if. Top and sides of head scaled, or naked and 



smooth, without conspicuous papillate 



ridged lines and seams. 



jf: Lower jaw with two rows of teeth and 



an inner row of stout curved canines; 



scales 104; second dorsal I, 15; anal 



I, 16 Biat. 



jf. Inner row of teeth in lower jaw not ca- 

 nines. 

 fefe 1 . Teeth in lower jaw erect, not in one 



row. 



W: Scales 38 to 42; tongue notched; two 

 or three rows of teeth in each jaw ; 

 second dorsal I, 10 to 11; anal I, 9 



to 11 Aparrius. 



W. Scales 40 to 90; tongue rounded; one 

 row of teeth in upper jaw, two to 

 four rows in lower jaw; an ocular 

 tentacle in some species; second 

 dorsal I, 10 to 13; anal I, 10 to 14. 

 Oxyurichthys. 



