PHILIPPINE MACROUROID FISHES—GILBERT AND HUBBS. 473 
in our material is always less than half the length of the snout, but 
to a variable degree. Weber? finds only 2 specimens out of 19 in 
which the snout is more than twice as long as the least interorbital 
space. These differences may, however, be due to different methods 
of measurement. The methods which we follow are clearly given in 
the introduction to our paper on Japanese Macrouroids.? (. argus 
can not be identified with any other of the seven species of the C. 
notatus group, all of which are described in these pages. 
List of stations. 
- | Bottom | Number 
Albatross ‘ Depth in : 
H Locality. tempera- | of speci- 
station. fathoms. KG aaa. 
ee 
DeSia EB ehweeDMBUITias ana WuWZ0Ns 5.45 ccse~ let osc ccee eect aces oe 209 52.4 1 
DilgnOhina sea, OfvsOUGHerM WNZON = sieen ses. cceee s+ Anse Sema 177 52.4 1 
SOULS Ree a Oe Sn enlace tsicinicte ss Siceeartcemtns eee sok came Sead 1G Dl eee eae 1 
5265" | -- << Le aes ers e oreo arate sine See aicleed Mes annie Se eee see = WB 'a| ess eeereist= 1 
O20 | esce OS Hae SS ersoaie cee ceios Com waste seamns obeccis eames nesewelely VB Rae. Sees 8 
5298 |... -- CORE Rte ee ene ne LAE Se es ie Re ee RI ee it NAO" or ereetecer 2 
5421 | Between Panay and Guimaras Islands.............-.--------- DS I os et se 1 
5247 | Gulf of Davao, southern Mindanao TUG Hi BB eee ee 2 
So4gn ENearololsiandse 2, =. sess sce cance Sescieccsees 232 53.5 4 
Dooly | pases COM eee eter se see e seme cete sence eee 161 57.4 3 
We have prepared a detailed description of our material: 
Fin-rays—first dorsal, II, 7 to 9; pectoral, 14 to 17; ventral, 7. 
The dorsal contour varies somewhat, that of the snout being more 
or less concave, while that behind the snout is more or less convex. 
Greatest depth of body, 1.85 to 2.0 in head; width across pectoral 
bases, 2.6 to 2.9, equal to, or somewhat less than, the depth of the 
body below the origin of the lateral line. The dorsal contour is not 
elevated at the occiput. The snout is narrow anteriorly as in notaius, 
sexradiatus, and triocellatus, its sides being quite evenly convex for- 
ward to just behind the produced dorsoterminal plate, the length 
of which is contained from 2.9 to 3.9 times in the postorbital. In 
some specimens the anterolateral angles of the snout are fairly 
prominent, while in others they are scarcely apparent. Preocular 
length of snout, 2.2 to 2.5% in head; preoral length, 2.4 to 2.9; width 
of snout opposite front of orbits, 2.7 to 3.05. The width of the snout 
at the posterior end of the ethmoid region of the infraorbital ridge 
is about equal to the length of the orbit, and is contained from 1.0: 
to 1.25 times in the distance from that point to the tip of the snout. 
The subopercle has the usual pointed flap. The orbit is of rounded- 
oblong outline, its length being contained from 3.4 to 3.8 times in the 
head; 1.0 to 1.1 times in the postorbital length to the edge of the 
1 Doctor Weber has kindly reexamined his material as regards this and other points 
which were of interest to us. 
2Proc. U. S. Nat. Mus., vol. 51, 1916, p. 147. 
’These measurements of the parts of the head were made on each of about 12 speci- 
mens, in which the heads measured from 41 to 53 mm. 
