820 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



15 examples. Creek at Hacienda below Pancol, Malampaya Island, Palawan. 



December 26, 1908. Length, 58-106 mm. 

 64 examples. Isabela River, Basilan Island. September 11, 1909. Length, 



55-123 mm. Blackish blotch above pectoral variable, often with several 



indistinct smaller bars or spots about it. 

 5825, 5827 to 5833. Iwahig River and tributaries, Puerta Princesa, Palawan. 



April 4, 1909. Length, 50-129 mm. 92 examples. One example, 98 mm. 



long with abnormal back, the predorsal profile slightly convex medially. 

 74 examples. Malatgao and Canino River, Puerta Princesa, Palawan. April 4, 



1909. Length, 42-113 mm. Basal scale pockets of side more or less heavily 



pigmented blackish in places giving an irregular variegated appearance of 



some scattered short vertical bars. 

 18 examples. Malbato River, Port Uson, Busuanga Island. December 17, 1908. 



Length, 34-90 mm. 

 29 examples. Malinao River, Mantaquin Bay, Palawan. April 2, 1909. 



Length, 38-115 mm. 

 28 examples. Pangauron River, Port Caltom. December 16, 1908. Length, 



65-120 mm. Median dark axial lateral band, neutral dusky or dark neutral 



slate to caudal base. Nematahramis verrccundus founded on a specimen 



but 42 mm. long with coloration such as these specimens, differs only in its 



greater depth of 2%, though I have specimens of such depth which are 



surely Mearnsella alestes. 

 9235, 9237 to 9239, 9241. Zamboanga River, Zamboanga. October 9, 1909. 



Length, 71-110 mm. 52 examples. 



