36 BULLETIN 214, UNITED STATES NATIONAL MUSEUM 



12a. Coloration plain brownish, even at a length of 2 feet, except 

 peduncular region and caudal fin are pale; no marks on head 

 (females of ahuio. = pers]ncillatus)', figure 21, d. 

 12&. Cheek and operculum with (in alcohol) pale, narrow irregularly- 

 shaped streaks or lines, bright blue-green when alive; figure 

 21,a-c. (Hawaiian and Johnston Islands.) 



pcrspicillatus Steindachner 

 116. Second row of scales on cheek with from 5 to 9 scales. 



13a. Pectoral rays usually ii,12, occasionally ii,ll or ii,13 (see table 3); 



dorsal base of pectoral fin with a dark spot that persists in 



specimens preserved in alcohol. 



14a. Side of body with a vertically pale bar that extends from front 



of soft dorsal to front of anal fin; anterior to this pale bar 



a dark bar set oflf by a pale area dorsally; sometimes this 



anterior pale bar is continuous anteriorly to cover dorsal 



half of head; dorsal area of pale bars bright yellowish when 



alive; for details of color streaks on head, see plate 10,d. 



(Central and West Pacific, Indian Ocean.) 



schlegeli (Bleeker) 



146. Side of body with 4 or 5 alternating dark and pale bars, the pale 



bar about 2 scales wide, notably narrower than dark bar; 



lips nearly close, the angle between them usually narrower 



than 30 degrees; figure 22. (West Pacific.) 



venosus Cuvier and Valenciennes 

 14c. Sides of body without distinct vertical bars. 



15o. Coloration of body plain brownish, or nearly so. 



16a. Dorsal and anal fins brownish: sometimes a dusky spot 

 obvious at base of membranes between dorsal spines 

 I and II, posterior margin of caudal fin with a fine 

 white margin, edges of both lips are dark in alcohol; 

 caudal fin with indistinct vertical dusky bars; dark 

 spot on base of pectoral may cover most of its base in 

 some specimens; figure 8. (Hawaiian Islands, Central 

 and West Pacific, Indian Ocean.) 



taeniurus Cuvier and Valenciennes 



Figure 8. — Scarus taeniurus, after specimens 160 to 170 mm. in standard length. (Sketches 



by author.) 



