FISHES OF BORNEO, WITH DESCRIPTIONS OF FOUR 

 NEW SPECIES. 



Bv Alvix Seale. 



(From the Section nj Fisltfrics, Biological Laboratory, Bun-uii of Hcicnce, 



Manila, P. I.) 



The following collection of fishes was secured hy me at Sandakan, 

 British Xorth Borneo, Fehniary ]() to 14, 190S. Of the one hundred 

 and seventeen species, ninet}--one were connnon to Borneo and the Phil- 

 ippines. l\\-enly-six only were recorded froni Borneo and not from the 

 Philippines. The method of measurement is the same as that used by 

 Jordan and Evei'mann.^ The color markings i-ccni-ded are all from 

 specimens which ha\c been two years in alcohol. 



Family C.VECILVHIID.K. Shark>. 

 Charcharias borneensis Soale, sp. nov. Plate I. 



Head -1; deptli .").!; eye (i.."i() in licad ; sudul but sliglitly less than 

 interorbital ; middle of eye exactly midway lietween tip of snout and 

 second gill arch; no spicules; nostrils considerably nearer mouth than 

 to tip of snout; lengtli of under jaw l.(iO in snout; width of mouth at 

 angle 1.2.i in snout; five gill arches, the ])osterior ones above l)ase of 

 pectorals. Teeth all oblique in two ro«s at least ^ on each side; all 

 with swollen bases ; tltose of the upper jaw have one large sharp point 

 and three smaller jxiints on the inner side, the longest about one-third 

 the size of the large point ; these graduate in size, both the large and 

 small points are denticulate. Each tooth of the under jaw consists of 

 a single, smooth, shar]) point on a s\i-ollen base. I was unable to detrct 

 any denticitlations on the lower teeth. (Sec Plate I, figs. ;! and 4). 



The origin of the ventral is located posteriorly to the pectorals by a 

 distance one-tliird greater tlian the eye, tlie fin being midway between the 

 tip of snout and the middle of the base of the second dorsal; height of 

 dorsal ].."jO in head, its base l.T.) in its height; origin of secund dorsal 

 midway between tip of caudal and fourth gill opening ; height of second 



^ Bull. n. S. Xal. I/h.v. (1S!)(1), 47, pt. 1, ix. 



2f>3 



