90 BULLETIN 214, UNITED STATES NATIONAL MUSEUM 



by a broad pale streak; a pale bar on side of lower jaw appears to be 

 characteristic on adults. The three streaks on anal and dorsal fins 

 of azureus distinguish it from calif orniensis. 



This species is deep bodied, depth about 2.3 to 2.5 in length, usually 

 6 median predorsal scales, 3 rows of scales on cheek, with 1 to 3 scales 

 in ventral (third) row; pectoral rays ii,13; white teeth; and caudal 

 fins deeply forked in adults; angle between lips 10 to 30 degrees on 

 large specimens. 



In addition to the type I have studied a specimen each from 

 Panama and the Pearl Islands. 



Scarus noyesi Heller and Snodgrass 



FiGUEE 17; Plate 17,d 



Scarus noijesi Heller and Snodgrass, Proc. Washington Acad. Sci., vol. 5, p. 206, 

 pi. 9, 1903 (type locality: Albermarle Island, Galdpagos; paratype USNM 

 50084). 



The parrotfishes of the eastern Pacific are not well known and with 

 the small amount of material available I am unable to work out the 

 species with certainty. To aid in this matter I present a more detailed 

 description of this species to supplement that of Heller and Snodgrass. 



Precision measurements were made on 3 specimens and these data 

 are expressed in thousandths of the standard length, respectively, of 

 355, 315, and 240 mm. Length of head 352, 343, and 325; greatest 

 depth 360, 397, and 350; length of snout 158, 149, and 129; diameter 

 of eye 45, 54, and 50; fleshy interorbital space 111, 114, and 103; 

 postorbital length of head 163, 162, and 158; least preorbital width 87, 

 86, and 71; least depth of caudal peduncle 144, 140, and 150; length of 

 caudal peduncle 163, 168, and 146. Length of longest dorsal spine 101, 

 124, and 112; of soft dorsal ray 127, 137, and 125; of anal spine 104, 

 108, and 100; of soft anal ray 101, 102, and 112; of pectoral 231, 232, 

 and 225; of pelvic 180, 162, and 167; of caudal 296, 305, and 292. 



The following counts were recorded: Dorsal always IX, 10; anal 

 111,9; pelvic 1,5; branched caudal rays 6 + 5; pectoral rays ii,13 in all 

 specimens except one, which has ii,15 rays — an unusual count, per- 

 haps resulting from an injury not superficially evident; median pre- 

 dorsal scales 6, rows of scales on the cheek 3, with 2 scales in the ventral 

 row. 



Lips almost cover the whitish teeth, angle between them about 

 30 to 40 degrees; inner lip joined to outer closer to symphysis than to 

 corner of mouth, canines weakly developed at corner of mouth. 



In alcohol the general background coloration is brownish dorsally, 

 yellowish orange ventrally; some specimens have 4 or 5 dark brownish 

 green bars (blue when alive) on back and sides; distal margins of dorsal 



