VAIMOSA 141 



brown; the base of first dorsal may be yellow, especially ante- 

 riorly; the caudal tipped with a broad band of yellow or white, 

 delimited by a conspicuous dark brown line along its inner side ; 

 the other fins more or less dusky, or the ventrals may be yellow ; 

 the base of the first dorsal and the caudal marginal band 

 evidently yellow in life. 



I have examined the following specimens, ranging in length 

 from 28 to 93 millimeters: 



Mission, Cagayan Province, 4. Capiz, Panay, 1. 



Calumpit, Bulacan Province, 4. Iloilo, Panay, 5. 



Malabon, Rizal Province, 4. Dumangas, Iloilo Province, 5. 



Manila, 3. Molo, Iloilo Province, 8. 



Cavite, 18. Villa, Iloilo Province, 3. 



Laguna de Bay, 4. Bintoan, Busuanga, 1. 



Polo Plantation, Tanjay, Orien- Coron, Busuanga, 14. 



tal Negros Province, 1. Cebu, 1. 



San Jose, Antique Province, Pa- Cabalian, .Leyte, 2. 



nay, 4. Davao, Mindanao, 10. 



Most of these were compared with the type at Stanford Uni- 

 versity and, though there is some variation among them, all are 

 readily placed here. 



This is a well-marked species previously known only from 

 the type specimen from Cavite. 



Genus 31. VAIMOSA Jordan and Seale 



Vavmosa JORDAN and SEALE, Fishes of Samoa, Bull. Bur. Fisheries 

 25 (1906) 395. 



This genus is separated from Rhinogobius and Gnatholepis by 

 having the opercles covered with large scales, but the cheeks 

 naked ; the body is covered with large ctenoid scales, 26 to 38 in 

 a longitudinal series, extending forward on the nape to the eyes ; 

 the anterior ones usually large, rarely smaller than those on the 

 sides; the scales on the nape and opercles may appear cycloid 

 but the microscope shows them to be ctenoid ; the teeth are very 

 small to microscopic, in bands of three to five rows in each jaw, 

 without canines ; the tip of the tongue is rounded or subtruncate ; 

 the dorsals are separated, often widely, the vertical fins rather 

 short and low in our species, the caudal peduncle long; the caudal 

 longer or shorter than the head, variously shaped; no silky free 

 rays on the upper part of the pectoral. 



Dorsal VI, 1-6 to 9, anal I, 6 to 8 ; branchiostegals 5. 



A genus of small, sometimes handsomely decorated fishes, 

 living among the rocks and gravel of swift streams or in moun- 

 tain lakes, although at least one species also occurs in the sea. 



