S2 THE PL.\GIO?TO>nA. 



near the comer of the eye. Gill openings narrow, hindmost two above the 

 p>ectoral. Fins all small, p)ectoral short, broad. Ori^n of the first dorsal be- 

 hind the origins of the ventrals; origin of second dorsal farther back than that 

 of the anal. Anal short; subcaudal short. 



Southeastern Pacific and .\iistralia to the Arabian Sea, India, and Japan. 



First dorsal and second about equal 



rifigin of first dorsal above the middle of the bases of the ventrals 

 anal base little longer than base of second dorsal 



tran5\-erse bands of darker spotted with black burgeri (page 83) 

 anal base one and one half times that of the dorsal 



transverse blotches or cro^ bands and faint spjots of darker 



chxlensis (page 83) 

 origin of first dorsal above hinder third of bases of ventrals 

 anal base one and one half times that of second dorsal 



trans\-erse bands broad, with marbUngs and reticulations 



natalensis (page 84) 

 origin of first dorsal Uttle in advance of hind ends of ventral bases 

 anal base httle longer than either dorsal base 



transverse bands narrow, 20 or more, separated by light 



quagga (page 84) 

 First dorsal larger than second 



origin of first dorsal little forward of ends of ventral bases 



grej% dull, uniform ' hispidus (page 85; 



ori^ of first dorsal above hind ends of ventral bases 



brown with scattered small spots of darker . anaUs (page 85) 

 lirst dorsal smaller than second 



nrigin of first dorsal at ends of first two thirds of ventrals bases 

 brown with faint cross bands and spots of darker and lighter 



birius (page 86) 

 origin of first dorsal above middles of ventral bases 



blackish, imiform ; scales simple . . . alcockii (page 87) 



grejish, caudal tipp)ed with black other fins with white 



canescens (page 87) 

 First doi^ base little if an5'^ shorter than anal base 

 origin of first dorsal above hind edge of vent 



brown, dark, with scattered small spots of black labiosus (page 88) 



