88 BULLETIN 214, UNITED STATES NATIONAL MUSEUM 



predorsal scales instead of 6 or 7 which places formosus in a different 

 subgenus. 



I have studied several specimens in lots from the following localities : 

 Guam, 2 lots; Marshalls, 5; Sumatra, 1; Raroia Atoll, 7; Kapinga- 

 marangi Atoll, 7; and Philippines, 2. 



Scarus marshalli, new species 



Figure 24 



Holotype BM 1955.11.4.5, Mersa Sheikh Sa'ad, Red Sea, collected 

 by Norman B. Marshall, standard length 280 mm. 



Paratypes BM 1955.11.4.6, same data as holotype, 320 and 265 mm. 



Precision measurements were made on the holotype and two 

 paratypes and these data are expressed, respectively, in thousandths 

 of the standard length. Standard lengths 280, 320 and 265 mm. 

 Length of head 357, 353 and 347; greatest depth 410, 410 and 402; 

 length of snout 164, 164 and 158; diameter of eye 54, 44 and 45; fleshy 

 interorbital space 125, 128 and 128; postorbital length of head 157, 

 163 and 162; least preorbital width 79, 87 and 79; least depth of caudal 

 peduncle 132, 138 and 136; length of caudal peduncle 175, 166 and 158; 

 length of longest dorsal spine 143, 131 and 140; of soft dorsal ray 154, 



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Figure 24. — Holotype of Scarus marshalli, new species. (Drawing by Aime M. Awl.) 



138 and 143; of anal spine 125, 122 and 124; of soft anal ray 143, 144 

 and 147; of pectoral 243, 231 and 241; of pelvic 204, 206 and 215; of 

 caudal 271, 269 and 249. 



Counts were recorded in table 4 for the three types. 



The lips do not quite cover the green teeth, the angle between them 

 is about 25 to 30 degrees; the inner upper lip is joined to the outer 



