GLOSSOGOBIUS 



163 



before lower margin is reached; the pectorals and anal clear, 

 the ventrals dusky, with a broad clear margin; the eye blue. 

 During the breeding season, at least, the anal papilla becomes 

 orange. 



Specimens from Lake Buluan, and large specimens generally, 

 are darker; those from Lake Buluan are blackish over most of 

 the back and sides, with the fins also heavily pigmented. 



Alcoholic specimens are much paler than living ones, as a 

 rule, but are otherwise similar. This species loses its coloration 

 very rapidly after death, and those in the markets are often uni- 

 formly pale yellowish to whitish. 



I have kept under observation hundreds of living specimens 

 and have examined thousands in the markets ; I have also studied 

 the following alcoholic specimens, varying in length from 17 

 to 265 millimeters, or 349 millimeters with the caudal fin. The 

 localities represented in the Bureau of Science collection are : 



Buguey, Cagayan Province, 2. 



Tuguegarao, Cagayan Province, 

 5. 



Barrio La Paz, Laoag, Ilocos 

 Norte Province, 7. 



Abra River, Vigan, Ilocos Sur 

 Province, 7. 



Santa Maria, Ilocos Sur Prov- 

 ince, 3. 



Lingayen Gulf, La Union Prov- 

 ince, 5. 



Agno River, Dagupan, Panga- 

 sinan Province, 11. 



Angat River, Bulacan Province, 

 8. 



Baliuag, Bulacan Province, 2. 



Calumpang River, Norzagaray, 

 Bulacan Province, 3. 



Calumpit, Bulacan Province, 13. 



Salt-water fish pond, Bulacan 

 Province, 1. 



Sibul Springs, Bulacan Prov- 

 ince, 1. 



Malabon, Rizal Province, 1. 



Manila market, 2. 



Pasig River, Manila, 25. 



Mayondon, Laguna de Bay, 10. 



Balanak River, Pagsanjan, La- 

 guna Province, 4. 



Bunkal River, Darakap, Zam- 

 bales Province, 2. 



Talisay, Lake Taal, Batangas 

 Province, 8. 



Lake Taal, Batangas Province, 

 74. 



Pansipit River, Batangas Prov- 

 ince, 20. 



San Miguel Bay, Camarines Sur 

 Province, 1. 



Bicol River, Camarines Sur 

 Province, 2. 



Lake Buhi, Camarines Sur Prov- 

 ince, 8. 



Legaspi, Albay Province, 1. 



Puru, Albay Province, 1. 



Baco, Mindoro, 2. 



Mamboc River, Lake Naujan, 

 Mindoro, 5. 



Budbudan River, San Jose de 

 Buenavista, Antique Province, 

 3. 



Mambugan swamp, San Jose de 

 Buenavista, Antique Province, 

 3. 



Dumarao, Capiz Province, 2. 



Dumangas, Iloilo Province, 9. 



Villa, Iloilo Province, 2. 



Iloilo, Iloilo Province, 4> 



Navalas, Guimaras, 2. 



Concepcion, Busuanga, 2. 



Taytay, Palawan, 2. 



Balabac, 1. 



