CHROMIS 33 



Fresh specimens brownish violet above, this color gradually 

 fading into orange yellow below ; the longitudinal stripe on each 

 lobe of caudal brownish violet. 



Ground color in alcohol brown, becoming darker on the back; 

 each scale with a yellowish spot and dark edge; vertical fins 

 violaceous ; caudal with a dark blackish brown longitudinal stripe 

 on each lobe. There is no bluish line in front of orbit. 



The above account is of thirty-four specimens, 32 to 59 milli- 

 meters long, taken at Cabalian, Leyte ; and at Tambagaan, Tawi- 

 tawi, Sibutu, Bungau, and Siasi Islands, Sulu Archipelago. One 

 of the examples, 37 millimeters in length, obtained in June, 

 1921, at Siasi, is in near-spawning condition. 



This species has been recorded previously from the Philip- 

 pines by Fowler, as Chromis philippinus. 



I can find but little difference between Chromis amboinensis 

 and this species, and it is probable that the former is an adult 

 stage of Chromis ternatensis. It was first described by Bleeker 

 from three specimens collected in Ternate. It is known to 

 occur also in Goram; Booroo; and Beo, Karakelang Island. 



CHROMIS DIMIDIATUS <KIuniiner) 



PLATE 7, PIG. 2 



Helioses dimidiatus KLUNZINGER, Fische des Rothen Meets 2 (1871) 

 629; GiiNTHER, Fische der Sudsee 2 (1876) 237, pi. 125, fig. E. 



Dorsal XII, 12; anal II, 12; scales in lateral series 26; with 

 tubules 17 ; between lateral line and origin of dorsal 3 ; between 

 lateral line and vent 9. 



Depth of the ovoid body 2 in length; head 3.2, with the 

 profiles evenly arched and equally elevated; depth of caudal 

 peduncle 6.4, or 7.2 in length. The broad, evenly arched in- 

 terorbital 2.8 in head; the large, circular eye 2.3; the short, 

 rounded snout 4.1, or shorter than maxillary which is contained 

 3.5 in length of head. Cleft of mouth oblique, jaws even, the 

 maxillary terminating posteriorly behind front edge of the eye's 

 orbit; teeth in double series, those in front strong and conical. 

 Preorbital very narrow, its width above angle of mouth less than 

 one-third the eye diameter; opercle unarmed behind. 



Head and body completely scaly; vertical fins with a rather 

 high sheath of scales. Middle dorsal spines highest, the last 

 one higher than the second anal spine. Both rayed dorsal 

 and anal rounded; caudal forked, with the lobes produced into 

 filaments ; pectoral fin longer than head, terminating above base 



