bo 
Gr 
CHETODON TYRWHITTI. 
Order, 'TiroRACIC. 
Native Name, ofep RADEYA. 
C. tyrwuirtt. Body yellowish on the upper part, graduating to a pale 
gray beneath ; five perpendicular equidistant dark stripes graduated below, 
dark spots intervening. Dorsal fin striated between each spine with grey 
on yellow, the upper parts terminating diagonally in bluish grey. Head of the 
prevailing grey, witha pink hue and dark mark on the chief plate. Eye near 
the mouth ; iris silvery, but remarkably dull. 
Branchiostegous rays 4. Dorsal 23, thirteen spinous. Pectoral L4. 
Ventral 6, one spinous. Anal 13, two spinous. Caudal 16. 
Tur Radeya of the Cingalese inhabits rocky situations, and 
although it rarely exceeds five inches in length, 1s sought after, and 
esteemed a wholesome food. It is occasionally found at a consider- 
able distance from the mouths of fresh-water rivers, and beyond the 
influence of the tides. Radeya is one of those names given by the 
native fishers, the derivation of which cannot be discovered, but 
the classical denomination has been suggested by the sincerest feel- 
ings of grateful esteem and respect. 
Figure—The natural size of the Specimen. 

