460 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



yellow wash on lower two rows above ventral tip; pinkish above anal base. 



Dorsal hyaline slaty. Caudal brighter, geranium red with last two or three 



scales. Anal pink. Pectoral slaty above, dusky hyaline below. Ventral 



hyaline. Iris golden. 

 19076. Silino Island. August 10, 1909. Length, 196 mm. (Preopercle scales, 



4 — 4.) [1810.] Teeth very pale rosy, almost white; caudal and anal geranium; 



upper half of body metallic olive, lower half bluish, rather purplish on upper 



abdominal region. 

 A. 1312. Tifu Bay, Bouro Island, Dutch East Indies. December 10, 1909. 



Length, 262 mm. (Preopercle scales, 5 — 4.) 

 A. 1259. Uki, Bouro Island. December 9, 1909. Length, 255 mm. (Preopercle 



scales, 5 — 5.) 

 A. 909. Limbe Strait, Celebes. November 11, 1909. Length, 227 mm. (Ca- 

 nines, upper, 1 — 0; lower, — 0; preopercle scales, 4 — 3.) 



(Viridis green; husius bise, hence bise green or dusky green.) 



CALLYODON TRICOLOR (Bleeker) 



Scarus tricolor Bleeker, Verh. Batav. Genootsch. (Labroid.), vol. 22, 

 1849, p. 59. Batavia, Java. 



Pseudoscarus tricolor Bleeker, Atlas. Ichth. Ind. N6erl., vol. 1, 1862, p. 39,. 

 pi. 17, fig. 1 (Java, Celebes, Amboina). — Gunther, Cat. Fish. Brit. Mus.,^ 

 vol. 4, 1862, p. 229 (East Indies); Journ. Mus. Godeffroy, vol. 8 (16), 

 1909, p. 315 (compiled). — Weber, Siboga Exp., vol. 57, Fische, 1913, 

 p. 387 (Karkarolong Island). 



Callyodon latifasciatus Seale and Bean, Proc. U. S. Nat. Mus., vol. 33, 

 1907, p. 238, fig. 7. Zamboanga. 



Depth 2}4 to 2%; head 3 to 3^, width 2^. Snout 2}/^ to 2%; 

 eye 5% to 6, 2 ^^^ to 2 3^^ in snout, 23^ to 2% in interorbital ; mouth 

 cleft 4ro to 43^ in head; Hps largely or quite cover teeth; canines 

 none or 1 to 3 above each side; interorbital 2 to 2^ in head, convex. 

 Gill rakers 20 + 32, short, flexible, slender. 



Scales in lateral line 19, 5 or 6 + 2; 2 scales above lateral line, 6 

 below, 7 or 8 predorsal; 3 rows of scales on cheek, of which lowest 

 row as 3 or 4 scales on preopercle flange. Scales with 27 basal 

 radiating striae, apical 26 to 34; circuli fine. 



D. IX, 10, I, ninth spine 2,^ to d}4 in head, first ray 2% to 334> 

 A. Ill, 9, I, third spine 3 3^ to 3%, first ray 2% to 3; caudal 13^ to 

 13^, slightly emarginate; least depth of caudal peduncle 2 to 2 3^8 J 

 pectoral 1^ to 1^; ventral 1% to 1^. 



Generally dull brown, under surface very pale brown. Entire side 

 of head, trunk, and front of tail to caudal peduncle, violet. Fins all 

 dull brown, paired ones little paler. Pectoral base neutral brown. 

 Teeth pale brownish. 



East Indian region. Most of our examples show no trace of the 

 blue longitudinal subbasal band on the dorsal fins, as shown in 

 Bleeker's figure. Moreover they differ a little further in the dark 

 pectoral base. Some have the lateral blue area extending back over 

 the sides of the caudal peduncle. 



