FISHES OP THE PHILIPPINE AND ADJACENT SEAS 67 



Chaetodon trifasciatus subsp. austriacus Ahl, Arch. Naturg., vol. 89, abth. A, 

 Heft 5, 1923, p. 57 (Red Sea). 



Chaetodon belliis (Solander) Lay and Bennett, Zool. Beechey's Vo}'., 1839, 

 p. 61 (name in synonymy). 



Chaetodon ovalis TniOLLifeRE, Fauna Woodlark, 1857, p. 164. Woodlark 

 Island. 



Chaetodon papek (Montrouzier) Tuiglli^re, Fauna Woodlark, 1857, p. 164. 



Chaetodon layardi Blyth, Prodr. Faunae Zeylon, Kelaart, Append., 1852, 

 p. 50. Ceylon. 



Chaetodon melapterus Guichenot, Notes I. Reunion, vol. 2, 1862, p. 6. Re- 

 union. 



Chaetodon Idunzingeri Kosmann and Rauber, Zool. Ergebn. Reis, Roth. 

 Meer, 1877, p. 13, pi. 2, fig. 11. Red Sea. 



Chaetodon trifasciatus var. arabica Steindachner, Anz. Akad. Wien, Nachr. 

 39, No. 24, Nov. 20, 1902, p. 317. South Arabia (name only).— Stein- 

 dachner, Denkschr. Akad. Wiss. Wien, Math.-Naturw. Kl., vol. 71, abth. 

 1, 1902, p. 138, pi. 2, fig. 3 (Makalla, South Arabia). 



Chaetodon punctato-fasciatus (not Cuvier) Fowler, Copeia, No. 58, June 

 18, 1918, p. 64 (Philippines). 



Chaetodon trifasciatus subsp. caudifasciatus Ahl, Arch. Naturg., vol. 89, abth. 

 A, Heft 5, 1923, p. 57. Padang, Siporab, Madagascar, Mozambique, 

 German East Africa. 



Depth l}4 to 1%; head 2% to 3%, width 1% to 1^. Snout 3 to 

 Z% in head; eye 2}/^ to 3}4, gi'eater than snout, 1 to 13^ in interor- 

 bital; maxillary % to % in snout, 3Vi to 4 in head; interorbital 

 2% to 3, broadly convex. Gill rakers 4 + 13, short points, }/q of gill 

 filaments, which 13^ in eye. 



Scales 38 to 40 between gill opening and caudal base; tubes 26 to 

 30 in lateral line; 6 or 7 scales above lateral line, 13 or 14 below. 

 Scales with 10 to 12 basal radiating striae; apical denticles 76 to 131, 

 with 3 to 12 transverse series of basal elements; circuli fine. 



D. XIII, 21, I or 22, i, fifth spine IJ^ to 1% in head, tenth ray 

 IK to 1%; A. Ill, 19, I or 20, i, third spine 1^ to 2, third ray IJ^ 

 to 1%; least depth of caudal peduncle 23^ to 2%; caudal 13^ to 13^, 

 hind edge convex; pectoral 1 to 13^; ventral 13^ to 13^. 



Brown, pale to whitish on lower surface of head and abdomen. 

 Each row of body scales with median dark to dusky streak, so all 

 appear little inclined upward posteriorly. Black band from predorsal 

 down through eye and across breast where meeting its fellow, above 

 eye v/ith narrow white bordering line in front and behind, below eye 

 with broad white band each side separating black of muzzle and 

 parallel black narrow band from first dorsal spine to hind eye edge, 

 this then down across side of head along preopercle edge to gill open- 

 ing ; above eye narrow black line with narrow white front bordering line . 

 Long cuneate black band along soft dorsal base, widening behind 

 and reflected on upper surface of caudal peduncle; band bordered 

 above and below with yellow line. Soft dorsal upper portions largely 

 pale with median longitudinal dark line and another submarginal. 



