PHILIPPINE MACROUROID FISHES—GILBERT AND HUBBS. 509 
Distance between center of anus and base of outer ventral ray 
decidedly longer than orbit, a little longer than postorbital, and 
contained 3.0 (2.4 to 3.0) times in length of head; distance between 
ventral and isthmus, also longer than the orbit, contained 3.25 (2.8 
to 3.4) times in head; distance between anus and isthmus, 1.6 (1.5 
to 1.65). A narrow, naked fossa, which extends forward a short dis- 
tance from the peritroct, covers an elongate glandular organ. 
Fig. 27.—CoELORHYNCHUS COMMUTABILIS. TYPE. AFTER RADCLIFFE. 
Seales rather small, in 54 rows from the front of the second 
dorsal fin to but excluding the lateral line series; in 6 or 64 rows 
just behind the long anterior curve of the lateral line. The scales 
of the body bear usually 5, but varying from 3 to 7, carinae, which 
are armed by a series of spinules overlapping the margin of the 
scale; the median series is often enlarged. The spinules increase in 
size posteriorly on each carina, and are rather broad at their base, 
approaching in their structure those described and figured for (. 
See 
Rae eet 
Fig. 28.—CoELORHYNCHUS COMMUTABILIS. AFTER RADCLIFFE (‘‘ COELORHYNCHUS 
COMMUTABILIS, FORM DELTA’’). 
smithi (fig. 19). The terminal rostral plates vary greatly in their 
length, strength, and spination. The occipital and postorbital ridges 
are covered by scales armed chiefly by a single spinous keel (by 
several carinae in C. smith) ; the scales on the remaining ridges of 
the head bear numerous spinous carinae; those on the median ros- 
tral ridge radiate from near the front of each scale (from near the 
middle of the scale in @. radcliffei). The scales on the top of the 
head are not greatly reduced in size, and bear several spinous 
carinae; the scales covering the anterolateral region of the snout, 
