PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 455 



the carina. The spinules on the scales of the head are finer and 

 fewer than in maculatus. The dorsoterminal plate resembles that 

 of maculatus, not being greatly strengthened and modified as it is in 

 notatus, seoeradiatus, and triocellatus; it barely projects beyond the 

 marginal line of the following scales. Both the dorsoterminal and 

 the ventroterminal plates are armed by a median and a submarginal 

 series of stout, erect, conic spinules in the type, while in certain para- 

 types either the median or lateral series (or both) of the upper plate 

 may be irregularly doubled. In the young the spinules of the ter- 

 minal plates, as those of the other scales, are stronger relatively and 

 fewer in number, but the same arrangement holds true as in the 



fW 



FlG. 10. — COELOKHYXCHUS VELIFEK. TYPE. 



adult. The number of scales on the ethmoid region of the infra- 

 orbital ridge averages fewer than in maculatus; they bear spinules 

 arranged in irregular radiating series. The scales of the median 

 superior rostral series are fewer than in maculatus, there being 8 

 to 10, instead of constantly 10 ; these scales are also armed with more 

 numerous carinae (as many as 10) — the carinae of the last scale, 

 which is not reduced in size, are subparallel, but those 6n the other 

 scales are arranged in series which radiate or diverge strongly — on 

 the posterior scales, from the middle of the front margin of each 

 scale; on the anterior scales, from a point near the front margin of 

 each scale. The supraorbital series is composed of scales which are 

 largest in front, and are wider and weaker than in G. maculatus, 

 all bearing several series of spinules which radiate from near the 

 front margin of the first scales, but from the anteroventral angle 

 of the posterior scales. The scales along the postorbital ridge bear 

 spinules in one to several series, usually in but one. 



The occipital ridges, which are nearly parallel anteriorly, but 

 diverge posteriorly, bear scales rather sturdily armed; the anterior 



