FAMILY LABRIDAE — SCHULTZ 163 



are greatly elongate, reaching past base of caudal fin; in the immature 

 the caudal fin is rounded, whereas in large adults the outer rays are 

 elongate and the rear margin of the fin is trilobate. 



Color in alcohol. — Background coloration broAvnish to light brownish, 

 usually with 4 more or less distinct vertical brownish bars and an 

 additional one on caudal fin; these dark brownish bars separated by 

 pale interspaces a little narrower than the dark bars, except that 

 last two pale bars are more distinct and are usually wider than the 

 dark bar across caudal peduncle; caudal fin with broad pale margin 

 posteriorly on young and half grown but less distinct on large speci- 

 mens, usually 3 or 4 small dark spots occur along middle of sides, last 

 one at midbase of caudal fin, usually in the pale vertical bar; at about 

 a standard length of 90 mm., white spots and streaks on the head 

 begin to appear; these have a somewhat definite pattern, especially 

 around eye and on snout as shown in the plate; a small dark spot 

 occurs at bases of seventh to eighth soft dorsal rays; lips of young 

 dusky, not barred, but lips of adults may have small pale spots; 

 there are no distinct narrow blackish streaks or black spots below and 

 behind eye; specimens about 190 mm. have the edges of the scales 

 brown and centers pale so that it gives the appearance of pale length- 

 wise streaks alternating with wavy fines. 



Color when alive. — Backgi'ound coloration purplish brown or pale 

 oHve, with the vertical dark bars purplish to rusty brown; dorsal fin 

 yellowish to orange-yellow; rear of caudal fin broadly margined with 

 reddish yellow; membrane between caudal rays posteriorly bright 

 red; anal fin orange to yellowish, with two red streaks distally but not 

 distinct on small specimens; anterior edge of pelvics orange; head 

 with bright red spots and red streaks; each scale of body, except 

 those posterioventrally, with a single vertical red fine; all these red 

 marks are pale or white in alcoholic specimens; pelvic fins yellowish 

 or reddish. 



Ecology. — This is an abundant species both in the shaUow reef 

 waters and in the deeper waters of the lagoon, especially around 

 luxuriant growths of algae and corals. 



Remarks. — C. trilobatus is closely related to C. chlorourus in coloration 

 but may be distinguished in having IX, 10 dorsal rays instead of X,9 

 in C. chlorourus-, the latter also has below the eye and on the head 

 dark streaks and spots that are lacking in C. trilobatus. 



Genus PSEUDOCHEILINUS Bleeker 



Pseudocheilinus Bleeker, Proc. Zool. Soc. London, p. 409, 1861 (type species, 

 Cheilinus hexataenia Bleeker). 



Current authors (Fowler and Bean, U. S. Nat. Mus. Bull. 100, vol. 

 7, p. 341, 1928; Weber and de Beaufort, Fishes of the Indo-Austrafian 



