164 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



ABUDEFDUF OXYODON (Blceker) 



Glyphisodon oxyodon Bleeker, Act. Soc. Ind. N^erl. (Celebes), vol. 3, 



1857-8, p. 14. Manado. 

 Glyphidodon oxyodon Gunther, Cat. Fish. Brit. Mus., vol. 4, 1862, p. 44 



(Celebes). 

 Paraglyphidodon oxyodon Bleeker, Atlas Ichth. Ind. Neerl., vol. 9, 1877, 



pi. 404 (5), fig. 2; Nat. Verh. Holl. Maatsch. Harlem (No. 6), ser. 3, vol. 



2, 1877, p. 127 (Baweaii and Celebes). 



Depth V/s; head 3, width 2. Snout 33/^; eye 2J^; maxillary 

 extends shghtly beyond front eye edge, not quite to pupil, 3ri5- in 

 head; teeth uniserial, compressed, pointed; interorbital 33^, broad 

 and slightly convex; suborbital and preopercle edges entire. Gill 

 rakers 8 + 14, lanceolate. 



Tubes in lateral line 14, followed by 3 pores; pores in straight 

 section of lateral line 8 + 1 ; 4 scales above lateral line to spinous 

 dorsal origin, 7 below; 20 predorsal, extending well down on snout; 

 fins densely scaly basally. Scales with 6 to 8 basal radiating striae, 

 edge scalloped; apical denticles 93 to 95, very fine, with 1 to 3 trans- 

 verse series of basal elements; circuli very fine. 



D. XII, 14, twelfth spine Ij^ in head, seventh ray 13^; A. II, 13, 

 second spine Ij^, sixth ray \}/i; caudal l^cr, slightly emarginate 

 behind; least depth of caudal peduncle 2; pectoral 1^^; ventral 2% 

 in combined head and body. 



Deep chocolate brown generally, all fins largely dusky to blackish. 

 Light blue band extends from snout tip, including upper rim of eye 

 and then back above suprascapular and close along and above 

 tubular lateral line, for 3 scales of its course. On lower side of head 

 another light blue band from end of maxillary back to lower part of 

 opercle. Also blue spot on interopercle and smaller one on sub- 

 opercle. From thirteenth tube of lateral line oblique short blue 

 band to origin of soft dorsal. 



Known to Bleeker from 2 examples, 46 and 77 mm., obtained at 

 Java and Celebes. We have a single example, from Cuyo, Cuyo 

 Island, obtained April 9, 1909, 65 mm. long [1512]. It differs from 

 Bleeker's figure in that the third or lowest lateral blue band is only 

 represented on the anterior surface of the upper edge of the caudal 

 peduncle by a few blue scales, these little or not visible as the fish is 

 viewed in profile. 



Blue-black aU over, posterior margins of soft vertical fins rich purple. Bright 

 purple spot in dorsal axil on fin. A similarly colored stripe from base of first 

 soft dorsal membrane curves down and forward to lateral line. Stripe of bright 

 purple or blue from in front of upper eye (not meeting?), through upper eye 

 backward above lateral line till opposite second dorsal spine. Similar stripe 

 from corner of mouth to front of opercle. Ventral darkened with blue. Blue 

 markings very conspicuous in life, not very distinct after death. Only 2 seen. 



