CHAETURICHTHYS 275 



with a prominent median hump, its length 1.2 in eye and 4.2 to 

 4.4 in head ; the mouth oblique, the maxillary not quite extending 

 to a point under front edge of pupil; the body covered every- 

 where with scales except on snout, lower jaw, and throat, those 

 on opercles and preopercles smaller than elsewhere. 



The longest dorsal spines contained twice in head; when de- 

 pressed the spines of first dorsal reach origin of second dorsal ; 

 the anal shorter than second dorsal, similar in outline and of 

 approximately the same height, the posterior rays longest and 

 equal to greatest depth of body; the depth of caudal peduncle 

 contained 3 times in head ; the pointed caudal a trifle longer than 

 head; the pectorals slightly exceed the ventrals in length, and 

 fall far short of reaching anus. 



The color in alcohol yellowish brown, without distinctive 

 markings, the scales having been largely rubbed off; the tips of 

 dorsal spines blackish; the other fins all more or less dusky. 



Here described from two specimens, 58 to 70 millimeters long, 

 collected at Fu-chow, Fukien Province, China, by Light. This 

 little fish is abundant throughout Japan, in bays and estuaries, 

 and was recorded by Steindachner from Swatow, China. It 

 may occur on the northwest coast of Luzon. 



Genus 58. CHAETURICHTHYS Richardson 



Chaeturichthys RICHARDSON, Zoology, Voy. Sulphur, Ichthyology, 

 (1844) 54; JORDAN and SNYDER, Gobioid Fishes of Japan, Proc. U. 

 S. Nat. Mus. 24 (1901) 104. 



The distinctive characters of this genus are the presence of 

 three small barbels on each side of lower jaw, the elongate 'dorsal 

 and anal, and the presence of three fleshy papillae on inner edge 

 of shoulder girdle. The moderately elongate body covered with 

 medium-sized cycloid scales very easily rubbed off; the head 

 broad, with arched profile, scaly cheeks, and eyes close together; 

 the mouth oblique, with truncate tongue, and pointed teeth in 

 two rows in each jaw, those of outer row longest, close together, 

 fixed, curved, and directed obliquely inward; the isthmus nar- 

 row, the gill openings continued well forward; the first dorsal 

 has 8 slender spines, the second dorsal 21 to 25 rays, the anal 

 I, 17 to 20 ; -the caudal is more or less pointed, longer than head ; 

 the pectorals pointed, without silky rays. 



This genus includes a few species of medium-sized, dull-colored 

 gobies from the seas of Japan and China. 



