430 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



interorbital not scaled posteriorly; 3/2 to 4 rows of large scales on cheek; 

 3 or 4 rows of large scales above lateral line in middle of body; depth of 

 body 2.2 to 3 in standard length; snout length 2.9 to 3.8 in head length; 

 snout pointed, profile from interorbital to upper hp nearly straight; a 

 tuft of cu-ri from membrane near tip of each dorsal spine; membranes of 

 dorsal fin moderately to deeply incised, the one between fifth and sixth 

 dorsal spines notched more than three-tenths the length of spines; 

 longest dorsal spine (usually fifth but may be fom'th or sixth) about 1.5 

 to 2.6 in depth of body; fu-st dorsal soft ray produced into a filament 

 (with exception of jalco and possibly guichenoti) ; pectoral fins mod- 

 erately long, extending nearly to or beyond a vertical at origin of anal 

 fin; lower unbranched pectoral rays markedly longer than branched 

 rays (except uppermost of the lower unbranched rays of those speci- 

 mens with 7 such rays); pelvic fin tips reach or extend slightly 

 posterior to anus (except for bleekeri and Red Sea oxycephalus) ; caudal 

 fin emarginate to truncate. 



Key to the Species of Cirrhitichthys 



la. Lateral-line scales 40 to 47; 3 rows of large scales above lateral line in middle 

 of body; dorsal soft rays 12 (rarely 13); anal soft rays 6 (rarely 7); snout 

 length 3.2 to 3.8 in head length. 

 2a. Longest dorsal spine 1.7 to 2.2 in body depth; depth 2.4 to 3 in standard 

 length; lower 6 pectoral rays unbranched. 

 3a, Depth 2.4 to 2.7 in standard length; bony interorbital space not narrow, 

 its width in adults about 1.7 in diameter of eye; free hind edge of 

 preorbital usually with one to a few small spines; spinous serrations 

 on preopercle 17 to 22 (45 mm. standard length or greater); 6 dark 

 bars on body (faded in some specimens), with a dark spot on lateral 

 line on pale interspaces (East Indies and Phihppines) . . aprinus 

 3b. Depth 2.7 to 3 in standard length; bony interorbital space narrow, its 

 Tvidth in adults about 2 in diameter of eye; free hind edge of pre- 

 orbital without spines (except rarely on serratvs); spinous serrations 

 on preopercle less than 20; no solid dark bars on body (bars, if present, 

 comprised of spots, blotches, or dark-edged scales). 

 4a. Dorsal profile of head, excluding eye, with a marked indentation just 

 above eye; orangish red bars on body in hfe, the fir.st 2 usually 

 persisting in preservative as zigzag dark lines following scale rows 



(probably Mariana Islands) serratus, new species 



4b. Dorsal profile of head, excluding eye, a slightly convex curve, without 

 an indentation; color pattern of subquadrate dark blotches in 3 

 or 4 rows on body. 

 5a. Hind edge of maxillary falling slightly forward of a vertical at 

 front edge of eye; fourth dorsal spine the longest; first dorsal 

 soft ray not decidedly longer than more posterior rays (at least 

 in sizes up to 42 mm, standard length) ; a group of 20 or more 

 small dark brown spots forming a broad bar on nape and opercle, 

 centered on origin of dorsal fin, and a second less conspicuous bar 

 of spots centered on sixth to seventh dorsal spines (these groups 

 of dark spots superimposed on rows of dark blotches) (Phihp- 

 pines) falco, new species 



