PHILIPPINE MACROUROID FISHES—GILBERT AND HUBBS. 459 
Summarized table of proportions of parts of head. 
Maxi- Mini- 
Type. Arnie main. Average.!; Young. 
Men POLOMb CAG dis WIM eee oes asco 2b ctcleiniareia = <leenr a= 49.5 BY fel AC Serer col Srennaice 43 
ORD MeAMone se sa tece fe sacle. cia mlnn seine jaisasicea= = 3.50 3.50 3.90 3.68 Sofa 
OEDIt POStOLDItal coy = 2s oe ese eiwialekiitel-in= = serene 1.15 1.15 1.34 1D 1.15 
(Of ons Tl Gti woe ae eine Sess ee eee cacsoonbencoreecsees 1.33 1.30 1.55 1.40 1.40 
interorbitalin: postorbitall; 225-2. 22-e senna sn sone 1.55 1.55 1.85 1.72 1.65 
MaiilanyeNeaden ce cc cmes sce cle ccanesiciscin an slecmae 4.05 3.70 4.05 3.86 4.10 
BAEhel mpostonpwalo esse sac-csa<chcseee = caer wecs|acetacess- 3.40 4.60 | 4.07 4.00 
Preocular length of snout 2.50 2.48 2.60 2.56 2.48 
Preoral length of snout......-.-.-- 2.95 2.90 3.05 2.98 3.10 
WV IGUHLOLSNOUtecsanes <a eo sem 2.50 2.50 2.85 2.67 2.70 
1 Based upon 5 to 7 specimens in each case (type included). 
The preceding table indicates certain of those differences which 
distinguish C. sexradiatus from C. notatus, the snout being longer 
and the orbit smaller. ~ 
Fic. 11.—CoELORHYNCHUS SEXRADIATUS. TYPH. 
The posteroventral angle of the subopercle is sharply produced 
backward (and slightly downward). The interorbital width is least 
above front of pupil; least suborbital width, 2.5 (to 2.7) in postor- 
bital. The maxillary subtends the anterior two-thirds of the orbital 
length. Bands of fine teeth occur on the jaws; the outer premax- 
illary series is not enlarged. Six branchiostegals. The gill-mem- 
branes form a narrow free fold across the isthmus. 
The anus is located near the origin of the anal fin, the interspace 
being contained 3.7 (to 2.9) times in the distance between the anus 
and the base of the outer ventral ray, which is contained 1.05 (to 1.4) 
times in the postorbital length of the head. The distance between 
the outer ventral ray and the isthmus is slightly shorter than the dis- 
tance between the anus and the ventral fin (slightly longer in one 
paratype). . 
A narrow, darkly pigmented, naked fossa, widening anteriorly, 
extends forward from the anus to between the front of the ventral 
bases. 
