FISHES OF THE PHHjIPPINE AND ADJACENT SEAS 137 



young; maxillary reaches to or slightly beyond front eye edge, 3 to 

 3-% in head; teeth imiserial, small, compressed, end of each little 

 notched; interorbital 2% to 3, broadly convex. Gill rakers 8+18, 

 lanceolate, slender, long. 



Tubes in lateral line 19 to 21, pores in straight section 8+1 ; 4 scales 

 above lateral line to spinous dorsal origin, 10 below, 17 predorsal; 

 3 rows of cheek scales, none on infraorbital. Scales with 8 to 10 

 basal radiating striae; apical denticles 21 to 89, with 1 to 10 trans- 

 verse series of basal elements ; circuli very fine. 



D. XIII, 13, I, fourth spine 2 to 2-^ in head, fourth ray 1% to 

 1% ; A. II, 13, 1, second spine 1% to 2%, fourth ray 1^4 to 1% ; least 

 depth of caudal peduncle 2 to 21/3; pectoral 1 to 1%; ventral 1; 

 caudal 21-^ to 2i/^ in combined head and body, deeply forked. 



Brown generally, each scale on body with more or less gray brown 

 border. Body with 5 pale or Avhitish vertical lines, though only 

 median distinct and conspicuous in adult example. Head with cop- 

 pery brown and gray to scales, obsolete or largely confined to cheeks 

 and opercles. Blackish blotch, little less than pupil at suprascupula 

 and another at pectoral origin. Caudal dull yellowish. Fins all 

 brownish. Caudal and pectoral paler or light yellowish. Young 

 without dark scapular blotch. 



Andamans, Philippines, Japan. It differs at once from Abudefduf 

 saxatiUs, A. septemfasciatus and A. sexfasciatus^ in the color pattern 



The original description by Day unquestionably pertains to our 

 materials, and agrees in every way as he so clearly describes. Like- 

 wise his figure. Though he does not mention the dark suprascapular 

 spot or the dark border of the opercle posteriorly, his figure clearly 

 shows these features. The species is ceilainly not to be confused 

 with Ahudefduf sordidus. 



The type of A. clarki is a very poor example, evidently a greatly 

 darkened formalin example. It agrees in all essential characters 

 with our Philippine material upon comparison. The median ver- 

 tical white line is now hardly evident in the type of A. clarki^ like- 

 wise the post-median white line. The caudal has also become greatly 

 darkened and the dark suprascapular blotch is inconspicuous. The 

 species is far more contrasted than Snyder's figure shows. 



23 examples, Silino Island, Philippines. August 10, 1909. Length, 22 to 90 



mm. 

 68234 U.S.N.M. Tanegashima, Japan. Length, 70 mm. Albatross Collection. 



Type of Ahudefduf clarki. 

 74534 U.S.N.M. Tanegashima. Albatross Collection. 1 example. Length, 50 



mm. 

 74588' U.S.N.M. Misaki, Sagami. Albatross Collection. 2 examples. Length, 



26 to 43 mm. 



32872—28 10 



