fishp:s of the Philippine and adjacent seas 143 



8461. Cagayan Island. March 31, 1909. Length 1.56 mm. Head from behind 

 base of front dorsal spine downward to near ventral l)ase dark, i early blackish, 

 becoming brownish on lower head and breast, with slight olive shade above. 

 Triangular area from behind third dorsal spine to front of ninth and pointing 

 below till above pectoral base orange. Soft dorsal and anal orange, le aving dusky 

 silvery of side nearly an equilateral triangle above auxillarj- line of side; not sep- 

 arated from same color below, which includes all of caudal peduncle and caudal 

 fin. Orange includes all dorsal spines except first 3 and all 3 anal spines; orange 

 shades brilliant in life, become dusky after death, and sides appear white or clear 

 silvery in life. Paired fins dusky. Pectorals somewhat darker on upper base. 



72. Caxisigan Island, oflf Balabac. January 2, 1909. Length 132 mm. 



A1141. Kayoa Island. November 29, 1909. Length 150 mm. 



4789 to 4798. Basa Reef, Gulf of Boni, Celebes. December 17, 1909. Length 

 132 to 151 mm. 



460 and 461. Basa Island. December 7, 1909. Length 144 to 145 mm. 



4764 to 4766. West of Malibagu Point, Celebes. November 21, 1909. Length 

 117 to 140 mm. Middle of side with large white or silvery gray area, not 

 brown as shown by Bleeker. Upper portion above lateral line especially 

 shows dusky margins and slight duskiness in central portion of scales but not 

 red brovvn of Bleeker; anterior body an! upper portion of head seal brown, 

 shade beginning about base of third dorsal spine, thence downward to point 

 of opercle and obscurely across breast slightly before ventrals; close behind 

 dusky cadmium orange to line of demarcation with white which begins at base 

 of eighth spine; lower side of head and breast distinctly yellowish, margins of 

 scales brown. Lips and top of snout dark brown. Posterior portion of white 

 limited by curve from tenth dorsal spine to top of caudal peduncle, touching 

 lateral line opposite lower Yf> of dorsal; fins above cadmium yellow, becoming 

 more or less dusky at tips. Caudal peduncle and caudal included in white, 

 fin dusky hyaline on posterior third. Anal spines and terminal portion of fin 

 beyond line from middle of last ray to base of second spinous membrane on its 

 outer edge cadmium yellow. Paired fins dusky hyaline, pectoral darkest on 

 upper rays, slightly yellowish or brownish in upper axil and on upper outer 

 base. [2064]. 



HEMITAURiCHTHYS THOMPSON! Fowler 



Hemitaurichlhi/s thompsoni Fowler, Occas. Papers Bishop Mus., vol. 8, No. 

 7, 1923, p. 384. Honolulu. 



Differs from Hemitaurichthys zoster chiefly in its uniform or 

 dusky coloration. 



Genus MICROCANTHUS Swainson 



Microcanthus Swainson, Nat. Hist. Anim., vol. 2, 1839, p. 215. Type Chae- 



todon strigatus (Langsdorf) Cuvier, monotypic. 

 Therapaina Katjp, Arch. Naturg., vol. 26, abth. 1, 1860, p. 140. Type 



Chaetodon strigatus (Langsdorf) Cuvier, monotypic. 

 Neochaetodon Castelnau, Proc. Zool. Soc. Victoria, vol. 2, 1873, p. 130. 

 Type Neochaetodon vittatus Castelnau monotj^pic. 



Like Hemitaurichthys, differs from Chaetodon in its small scales, 

 though its soft dorsal and anal are greatly shorter than either. Pale, 

 with horizontal blackish bands. 



