38 BULLETIN 214, UNITED STATES NATIONAL MUSEUM 



Figure 10. — Scarus troscheli, USNM 87933, with green color markings in black: a, head; 

 b, dorsal fin; c, anal fin. (Sketches by author.) 



19&. Streak extends from corner of mouth to eye, touching eye, 

 thence to upper edge of pectoral base, a less distinct 

 streak extends from corner of mouth across cheek to 

 lower part of pectoral base, these two streaks enclosing 

 a pale area (yellowish when alive); anal fin crossed 

 near its center by a light (red when alive) streak; 

 for other marks around the head see plate 11, c. 

 (West Pacific.) . . . bleekeri (Weber and de Beaufort) 

 19c. Color pattern not as in 19o and 196. 

 20a. Caudal peduncle and caudal fin pale with a dark blotch 

 at base of caudal fin; general background coloration 

 grayish to brownish; the brown or reddish color 

 phase may have several pale scales on sides poster- 

 iorly; teeth white or nearly so; plate 12,a,b. 

 (Hawaiian Islands, Central and West Pacific, 



Indian Ocean.) sordidus Forsk§,I 



206. In green color phase, distal H of anal fin green (dusky in 

 alcohol), with basal )i reddish (pale in alcohol); 

 edges of lips pink or red, with a green or blue streak 

 above on upper lip that extends to below eye; red 

 edge of lower lip interrupted near corner of mouth 

 by a characteristically shaped blue or green mark 

 (this is constantly present in the green color phase) ; 

 middle part of body yellowish, caudal peduncle 

 bluish or greenish; teeth green or nearly so; figure 

 II sordidus Forskil 



Figure 11. — Scarus sordidus, adult male, with green color markings in black: a, head; b 

 dorsal fin; c, anal fin. (Sketches by author.) 



