72 The Philippine Journal of Science 1923 



and half again as long as inner which parallels lower lip ; teeth in 

 || rows, their description given under that of the genus. 



Third gill slit largest and contained 8 in length of head ; fifth 

 smallest, being approximately three-fourths as large as third ; in 

 the type specimen margin of second gill slit on right side is 

 curiously modified, running above and beyond third gill slit, as 

 shown in the figure ; this is evidently a congenital malformation. 



Inner margin of pectorals four-fifths as long as outer margin, 

 which is 0.8 the length of head ; origin of first dorsal above poste- 

 rior margin of pectorals ; rear margin of both dorsals and anal 

 crescentic, inner angle of each produced in a long pointed tip ; 

 origin of anal opposite middle of second dorsal; caudal rather 

 short, a trifle less than the length of head; subcaudal narrow 

 with a pointed and moderately long lobe near its origin and a 

 notch near its extremity, the lobe 2.44 in length of caudal, with 

 a deeply concave posterior margin; supracaudal rather thick, 

 low, very little elevated. 



Body very deep just before first dorsal, with a low dermal 

 ridge between the dorsals and on the long caudal peduncle; trunk 

 and tail rounded, not at all compressed; tail longer than head 

 and trunk together, or 52.3 per cent of the entire length ; scales 

 small, very rough except on head where they are smooth, those 

 on caudal smaller, five keeled, the central one terminating in a 

 strong sharp point; numerous conspicuous mucus pores on top 

 of snout and extending back as far as crown. 



Color nearly uniform dark gray above lateral line, darkest on 

 crown and snout and in front of first dorsal; paler below, becom- 

 ing whitish or with a yellowish cast beneath; all the fins have a 

 narrow white posterior margin. 



Here described from the type specimen, a pregnant female, 

 955 millimeters long over all, obtained by me at Dumaguete in 

 March, 1922, and containing twelve young nearly ready for 

 delivery. 



There are six females, varying in length from 202 to 218 milli- 

 meters, and six males, five ranging from 200 to 208 millimeters 

 and one 220 millimeters long. All vary in certain particulars 

 from the mother. The head is contained from 4.3 to 5 times in 

 the total length; the extreme elevation of the predorsal region is 

 wanting, the depth being contained from 9.3 to 10 times in the 

 total length ; the crown and interorbital region are also slightly 

 convex. There is a black blotch on both dorsals and on the tip 

 of the supracaudal, and two black blotches on the caudal peduncle 



