1355 
Back and upper surfaces brown, little paler below, 
evidently silvery white in life. Head comparatively pale, 
under surface whitish. Iris gray. Inside mouth and gill 
opening blackish. Gray tints on opercle. Fins all pale 
brownish, paired ones little paler. 
Diagnosis. Related to Halosaurus guntherl but with 
much larger scales, longer maxillary and lower surface of head 
and belly uniformly pale. Similar in physiognomy and scales 
well adherent. 
Type. No. U. S. N, M. 
For Robert Ridgeway, with pleasant memories of by gone 
days in his department in the old Smithsonian Institution. 
1722. D. 5527. Ballcasag Island (C.), N. 14° W., 8.2 
miles (N. 9° 22’ 30 w E. 42’ 40"), between Siquijor and 
Bohol. In 392 fathoms. August 11, 1909. Length 354 mm. 
Type. 
2365. D. 5508. Camp Overton Light, Iligan Bay, S. 6° 
41 
E., 4.9 miles (N. 8° 17* 24“ E. 124° 11* 42“), northern 
Mindanao and vicinity. In 270 fathoms. August,4, 1909. 
Length 328 mm. 
