ZONOGOBIUS 199 



the caudal about 1.1 to 1.5 times in head; the pectoral pointed, 

 1.33 to 1.5 times in head and 4 to 5 times in length; the ventrals 

 pointed, about as long as pectoral or longer ; the anal papilla very 

 short and rounded in females, longer and very slender in males. 



The color in alcohol yellowish brown with a blackish brown 

 spot at base of caudal and four similar but smaller spots on 

 underside, the first under anterior part of anal fin, the second 

 immediately behind it, the third midway of caudal peduncle, 

 the fourth at base of caudal ; the top of head back to first dorsal 

 sprinkled with black dots, which also extend upon side of head; 

 over back are five broad, dark brown crossbands, at the begin- 

 ning and posterior part of both dorsals, and over caudal pedun- 

 cle; a small spot present at upper side of base of caudal; base 

 of pectoral also lightly spotted. 



Here described from seventy-five specimens, 7.5 to 11 millk 

 meters in length. Adult males are less than 9 millimeters long ; 

 adult females, .with the belly distended with eggs, are from 

 10 to 11 millimeters long. The specimens were in a bottle with 

 fishes collected in 1907 in Malabon, but whether they also came 

 from there is uncertain. 



This is unquestionably the smallest fish yet described, averag- 

 ing 2.5 or 3 millimeters less in length than the famed sinarapan 

 (Mistichthys luzonensls Smith) of Lake Buhi. I have examined 

 all the minute fish thus far known from Polynesia and North 

 America, and none is as tiny as this species. 



Pygmaeus, dwarf. 



Genus 38. ZONOGOBIUS Bleeker 



Zonogobius BLEEKER, Arch. Neerl. Sci. Nat. 9 (1874) 323. 



The fishes of this genus are tiny gobies, plain or of uniquely 

 variegated coloration, with the large head and nape back to first 

 dorsal entirely naked ; the body covered with firm ctenoid scales, 

 22 to 30 in longitudinal series ; the mouth large, very oblique ; the 

 teeth slender, needle-pointed, in two or more rows in each jaw, 

 the outer row in upper jaw enlarged; the other teeth minute; 

 the dorsals separate, the spinous dorsal higher than second 

 dorsal; the caudal obtuse or rounded, shorter than head; the 

 pectoral has no silklike rays above. 



Dorsal VI, 1-8 to 10 ; anal I, 7 or 8. 



Bleeker was in error when he stated that each jaw has two 

 rows of teeth. 



