PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 453 



body below the lateral line (only half the depth in very small speci- 

 mens). In trimness of form, and in firmness of texture, this species 

 presents an appearance intermediate between G, maculatus and G. 

 notatus, confirming other intermediate characters, such as the spinu- 

 lation of the scales and the color. As further evidence of its inter- 

 mediate position, this species in certain of its characters most clearly 

 resembles each of the other two. 



The dorsal contour of the snout, as in G. maculatus and G. ma- 

 crolepis, is straight, and the outline behind the snout is nearly 

 straight; the ventral contour is evenly and slightly curved down- 

 ward behind the mouth. The short, broad, deep, snout, with its 

 widely convex sides, closely resembles that of G. platorhynchus, C. 

 acantholepis, and G. caxrinifer, which are species of another sub- 

 genus. The tip of the snout is blunt, the dorsoterminal plate being 

 little or not at all produced beyond the line of the following scales 

 on the infraorbital ridge; the depth and width of the snout through 

 the terminal plates are about equal. 



Table of proportions of parts of head. 



Length of head (mm.). 



17 to 45. 



Maxi- Mini- 

 mum, mum. 



Aver- 



N um- 

 ber. 1 



45.5 to 54.7. 



Maxi- 

 mum. 



Mini- 

 mum 



Aver- 

 age. 



Num- 

 ber. 1 



53.5. 



Type. 



Orbit in head 



Orbit in postorbital 



Orbit in snout 



Interorbital in postorbital 



Maxillary in head 



Barbel in postorbital 



Preocular length of snout . 

 Preoral length of snout . . . 

 Width of snout 



3.05 

 1.00 

 1.05 

 1.40 

 3.55 

 4.90 

 2.70 

 2. SO 

 2.50 



3.33 

 1.20 

 1.35 

 1.70 

 4.00 

 5.30 

 3.00 

 3.10 

 2.75 



3.21 

 1.10 

 1.18 

 1.57 

 3.82 



2.76 

 3.00 

 2.58 



3.20 

 1.10 

 1.15 

 1.55 

 3.40 

 4.00 

 2.75 

 3.00 

 2.40 



3.50 

 1.30 

 1.23 

 1.85 

 4.00 

 5.00 

 2.95 

 3.50 

 2.95 



3.34 

 1.19 

 1. 1N5 

 1.68 

 3.68 



2.84 

 3.22 

 2.59 



3.36 

 1.20 

 1.17 

 1.67 

 3.60 



2.82 

 3.50 

 2.48 



1 The number of specimens on which the given average was based. 



The preceding table of measurements clearly shows certain vari- 

 ations of the relative proportions which are correlated with the size 

 of the individual : the orbit becomes smaller in larger specimens, the 

 interorbital narrower, the maxillary longer, and the snout shorter. 



A comparison of these measurements with those of G. maculatus 

 shows three of the differences which distinguish the two species; the 

 snout is shorter in C . velifer, the interorbital narrower, and the 

 mouth larger. 



The posteroventral angle of the subopercle is produced backward 

 and downward into a pointed flap. The orbit is of rounded-oblong 

 outline. The interorbital space is narrowest above the front margin 

 of the pupil, behind which point the slightly convex sides rapidly 

 diverge; the least width of the suborbital is less than in G. macu- 

 latus, being contained 2.5 (2.3 to 2.7) times in the postorbital length 



