. Bulletin - United States National Museum. Science. PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 471 the scale. Between the occipital ridges the scales, in five series, are mostly little modified, but become reduced in size near the median occipital scute; this scute bears a strong median and a weak lateral keel; there is no second scute between this one and the dorsal fin; a scute near the origin of the lateral line bears a strong spinous crest, with a weaker ventral carina. The scales in the median of the five series between the occipital and the postrostral ridge series are markedly enl
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. Bulletin - United States National Museum. Science. PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 471 the scale. Between the occipital ridges the scales, in five series, are mostly little modified, but become reduced in size near the median occipital scute; this scute bears a strong median and a weak lateral keel; there is no second scute between this one and the dorsal fin; a scute near the origin of the lateral line bears a strong spinous crest, with a weaker ventral carina. The scales in the median of the five series between the occipital and the postrostral ridge series are markedly enlarged, some bearing as many as 13 divergent carinae. As in notatus and triocellatus, as distinguished from sexradiatits, the fossa within the anterolateral margin of the snout is largely covered by prickles, leaving only a narrow groove along the outer side of those series of scales which bound on each side the median rostral ridge scales; the scales of these series are similar to those of preced- ing species, bearing an outer subparallel and an inner oblique group of carinae; posteriorly, small scales are inserted between the main series and the median rostral series. The underside of the head bears no scales. The first dorsal spine is short and strong; the second is long, and it terminates in a long filament; the third ray is as long as the snout plus the orbit. The base of the first dorsal is contained 1.3 times in the interval between the dorsals, and 1.5 times in the postorbital length of the head; the second dorsal fin is rather low anteriorly. The origin of the anal fin lies below the anterior por- tion of the interdorsal space. The pectoral is contained twice in the head; the second ventral ray reaches the anal origin. As a wide sexual dimorphism was demonstrated in O. maculatus, velifer, and sexradiatiis as regards the length of the fin-rays, a comparison of these characters is added, based upon the type, a male, and the paratype, a smaller female. Although the differe