FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 233 



Centroscymnus a'epidater (part) Rexjan, Ann. Mag. Nat. Hist., ser. 8, vol. 2, 

 p. 50, 1908 (on Alcock). 



Depth 5% to subcaudal origin ; head 3, width 1%. Snout 2^ in head ; 

 orbit 4, 1% in snout, about 1% in interorbital ; mouth width 2% in 

 head, crescentic, protractile, upper labial fold % upper jaw, lower 

 about % lower jaw; upper teeth acute, triangular, in 2 series, lower 

 very oblique and uniserial; nostrils inferior, about first fourth in 

 preoral length, valve short point on hind edge, internarial 3% in 

 preoral length, which 1% in head; interorbital 2, low. Gill open- 

 ings about % of orbit, last 2 closer and before pectoral. Spiracle 

 oblique slit half orbit, begins opposite hind eye edge to which 

 superior. 



Scales minute, acutely tridentate or anchor shaped. 



First dorsal origin close behind pectoral base, fin length 1% in 

 head; second dorsal origin opposite midventral base, fin length 

 ly^ in head, higher than first dorsal; caudal 2% in rest of body, 

 front subcaudal edge 2i/^ in caudal length; least depth of caudal 

 peduncle 5% in head; pectoral 1%, width about 3/2 its length; ventral 

 length 21/2. 



Uniform jet black. Length, 254 mm. (Alcock.) 



Off Travancore coast, India. Only the type known. 



CENTROPHORUS KAIKOURAE Whitley 



Centropharus kalkourae Whitley, Mem. Queensland Mus., vol. 10, pt. 4, p. 199, 



1934 (on Thompson). 

 Centrophorus calceus (not Lowe) Thompson, Rec. Canterbury Mus., vol. 3, No. 



4, p. 275, pi. 42, figs, a-i, 1930 (type locality: Deep water, off Kaikoura). 



Depth 7t^ to subcaudal origin ; head to first gill opening 314, width 

 2. Snout 2y^ in head; eye 5%5 3 in snout, 21^ in interorbital; mouth 

 width 4 in head to first gill opening, little curved; preoral length 

 1% ; labial fold extends a little way along both jaws and upper and 

 lower folds approximately equal in length, with upper continued 

 back in straight line past mouth angle to distance % of preoral fold ; 

 upper teeth in 2 functional sets and one developing set, triangular 

 in shape, descending to broad base; lower teeth in 2 rows, close to- 

 gether, without median tooth and inner lateral edge greatly inclined 

 outward to form cutting edge of tooth; interorbital 2% in head to 

 first gill opening, low. Gill clefts fairly wide, subequal. Spiracle 

 opening wide, behind and slightly above eye. 



Body covered with small, tricuspid scales mounted on moderately 

 long stalks; median cusp directed backward, and 2 lateral ones 

 backwardly and laterallv inclined. On top of snout and edges of 

 jaws flattened, knob-shaped scales. 



