342 ' BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



D. IX, 11, I, ninth spine 2}4 to 2]4 in head, first ray 2 to 2^; 

 A. Ill, 9, I, second spine, 2-^ to 2'J4', first ray 2}/^ to 2^; caudal l}i 

 to 1%; least depth of caudal peduncle 2 to 2%; pectoral 1)^ to 1%; 

 ventral 1% to Iyq. 



In alcohol largely blue green, especially soft vertical fins. Back 

 with 6 pale gray green longitudinal stripes or lines, much narrower 

 than darker interspaces and converging forward on head. Cheek 

 and under surface of head very pale brown, finely or minutely dotted 

 with white. Several darker bars cross yellow iris. Dusky longi- 

 tudinal band on dorsals and anals. Small round black oceUus at 

 origin of caudal above. Paired fins blue green. 



Other examples, evidently females, differ in having head largely 

 blue green, without converging dark bands above, cheeks and opercles 

 uniform pale brown. Body, except head, with 6 or 7 pairs of deep 

 brown lines, intervening bands paler, on abdomen whitish. Dark 

 dots scattered in dark lines in some examples. Vertical fins and 

 ventrals more deep bluish, latter black terminally. 



Widely distributed from the Red Sea to the East Indies, Phoenix 

 Islands, Tahiti and Hawaii. Several nominal species have been 

 described, more or less based on the changed colors of preserved 

 specimens. 



1 example, Galera Island. Length, 36 mm. 



[1975.] Gondra Island near Balipongpong Island. September 20, 1909. Length, 

 56 mm. Alternate blue and orange stripes from behind eye to base of caudal; 

 two last beginning behind head; lower side of head pink, belly similar, breast 

 with blue shade. Blue and orange stripes continued on dorsal, terminal por- 

 tion somewhat orange; soft fin hyaline. Caudal emerald, small black speck 

 in upper base. Anal with terminal portion of membrane pale reddish and its 

 base blue. Ventrals blue. Pectorals hyaline. 



[2017.] Mabul Island. September 29, 1909. Length 48 mm. Pale purplish 

 with fine white line as stripes, two or three on each scale row. Head pale 

 pearly, with white stripe under eye nearly to angle of preopercle, tip of snout 

 red. Dorsal spinous membranes orange with crimson tips, soft dorsal hyaline. 

 Caudal and anal body color, paired fins same but paler. 



21968. Murcielagos Bay. August 9, 1909. Length, 58 mm. 



2039. TaHsse Island. November 9, 1909. Length, 53 mm. 



[2094.] 1 example, Gane Road, Gillolo Island, Dutch East Indies. December 1, 

 1909. Length, 45 mm. Dull wine red with narrow sulphur stripes. Dorsal 

 spines indigo, membranes hyaline wine, rays slightly dusky. Caudal rays 

 pale indigo, membranes hyaline pink. Anal same as dorsal. Ventral spines 

 indigo, indigo blotch across outer half of fin, tip pink. Pectoral hyaline 

 pink. Iris scarlet. 



17989 U.S.N.M. Honolulu. Dr. T. H. Street. Length, 103 mm. 1 example. 



51059 U.S.N.M. Hawaiian Islands. U. S. Fish Comm. Length, 109 to 128 

 mm. 2 examples. 



50678. U.S.N.M. Hawaiian Islands. Mitchitaro Sindo. Type of Pseudochei- 

 linus evanidus. 



52417 U.S.N.M. Apia, Samoa. Bureau of Fisheries. Length, 38 to 60 mm. 

 5 examples. 



