48 GOBIES OF THE PHILIPPINES 



broadest at rear; base of pectoral has a large dark spot with 

 a pale spot above and below it, the fin itself colorless; ventrals 

 more or less dusky to black, with pale outer margin. 



I have examined thirty-two specimens of this fish, from 36 

 to 78 millimeters in length, from the following localities : Luna, 

 La Union Province; Santa Inez, Rizal Province; Manila; Libog 

 and Arimbay River, Albay Province; Baco River, Mindoro; 

 Naganahan River, Calapan, Mindoro ; San Jose and Mariri River > 

 Antique Province; Molo, Iloilo Province; Butuan, Agusan Prov- 

 ince; Placer, Surigao Province. 



This small and obscure fish dwells in rivers not far from the 

 sea and occurs throughout the Philippines, as well as in Am- 

 boina, Celebes, and Bum. Day's Eleotris amboinensis I cannot 

 include here, since he himself is doubtful that his fish is iden- 

 tical with Bleeker's species. 



15. BUTIS BUTIS (Buchanan Hamilton) 



PLATE 4, FIG. 1 



CheUodipterus butis BUCHANAN HAMILTON, Fishes Ganges 57 (1822) 



367. 

 Eleotris humeralis CUVIER and VALENCIENNES, Hist. Nat. Poiss. 12 



(1837) 246. 

 Eleotris butis CANTOR, Cat. Malayan Fishes (1850) 196; GUNTHER, 



Cat. Fishes Brit. Mus. 3 (1861) 116 (in part); DAY, Fishes of 



India (1878) 315, pi. 67, fig. 3 (in part) ; VAILLANT, Nouv. Arch. 



Mus. Ill 5 (1893) 57; BOULENGER, Ann. & Mag. Nat. Hist. VI 15 



(1895) 186. 

 Butis butis BLEEKER, Versl. Akad. Amsterdam 11 (1877) 62; JORDAN 



and RICHARDSON, Bull. Bur. Fisheries 27 (1908) 275; SEALE, Philip. 



Journ. Sci. , D 9 (1914) 74. 

 Butis leucurus JORDAN and SEALE, Proc. U. S. Nat. Mus. 28 (1905) 



794, fig. 13; Bull. Bur. Fisheries 26 (1907) 40; EVERMANN and 



SEALE, Bull. Bur. Fisheries 26 (1907) 104. 

 Butis prismaticus JORDAN and RICHARDSON, Bull. Bur. Fisheries 27 



(1908) 275 (not of Bleeker). 



Ibanag name, pasel. 



Dorsal VI, 1-7 or 8; anal I, 7 to 9. There are from 28 to 30 

 scales in a longitudinal series; very small accessory scales of 

 varying sizes are more or less abundant at the base of the 

 scales on the body, their number ranging from one to half a 

 dozen; 18 to 20 scales between first dorsal and interorbital 

 space. 



The body strongly compressed behind, the part behind the 

 head subcylindrical ; the back arched, highest at origin of first 

 dorsal, the depth contained 4.6 to 5.2 in the length; the 



