PHILIPPINE MACROUROID FISHES—GILBERT AND HUBBS. 467 
width, 2.5. The maxillary subtends the anterior two-thirds of the 
orbit; the length of the upper jaw is contained 4.5 times into the 
head. The villiform teeth, as usual, are in bands on the jaws; the 
outer premaxillary series is scarcely enlarged. The short barbel is 
contained 5.7 times in the postorbital.. Six branchiostegals; gill- 
membranes with a free fold. 
In the location of the anus this species occupies a position inter- 
mediate between that of C’. notatws and that of C. sevradiatus, the 
distance from the center of the anus to the origin of the anal being 
contained 2.6 times in the distance between the anus and the base 
of the outer ventral ray; the latter distance is contained 1.1 times 
in either the postorbital or the distance from the ventral fin to the 
isthmus. 
A darkly pigmented and very narrow ventral fossa extends for- 
ward from the peritroct only to opposite the posterior ends of the 
ventral bases. 
The scales are in 54 series from the origin of the second dorsal to 
but excluding the lateral line scales. The spinous carinae on the 
scales of the body, 7 to 10 in number, are similar in strength to those 
of notatus, but bear 9 or fewer longer, sharper, and more curved 
spinules; these spinules are much longer, sharper, more slender, and 
more widely spaced than those of C. sewradiatus. The squamation 
of the head is so similar to that of C. notatus that only the features 
apparently diagnostic need be described. The scales as a whole 
differ in bearing fewer carinae and fewer spinules. The acute dorso- 
terminal plate is much longer than in any of the preceding species, its 
length being contained only 2.9 times in the postorbital; its spinules 
are arranged in three series radiating from its tip, being much re- 
duced in size along the double median series. There are 6 scales on 
the ethmoid, 7 or 8 on the preorbital, series of the infraorbital ridge, 
and 9 on the mediorostral ridge. The median of the three spinous 
ridges on the occipital scute is the strongest; a scale nearly half the 
distance from the scute to the dorsal fin is enlarged and strengthened 
after a somewhat similar fashion. The median of the three series 
of scales between the occipital and postorbital ridges is enlarged. 
The anterolateral region of the snout is largely covered with prickles, 
leaving only a narrow naked groove lateral to the single series of 
scales bounding the median rostral row. In addition to these prickles, 
and to the longer dorsoterminal plate, the scales on the head of ¢rio- 
cellatus differ from those of sevradiatus chiefly in bearing fewer and 
more divergent carinae. The underside of the head and the nasal 
fossa are empicily scaleless. 
The first dorsal spine is very short, stout, and sharp ; the second 
is long and filamentous, being contained 1.12 times in the head (the 
a 
_17he fin-rays are probably shorter in the female. 
