471 



rays highest, lower edge of anal rounded, caudal emarginate. 

 Scales in oblique rows above the lateral line, horizontal below. 

 Colour olive-green, with 3 dark bands from the eye, two running 

 to the dorsal, the third to upper half of caudal, the latter has a 

 golden band below it, below this is another dark horizontal band, 

 and the abdomen beneath it golden ; a deep black spot in the axil 

 of the pectoral. Fins golden, a light margin to the spinous dorsal 

 and first five or six rays ; caudal with a darkish edge. 

 Hob. Nicobars to the Malay Archipelago. 



607. (12.) Lntjanns rivnlatus. 



Diacope rivulata, Cuv. $ Vol. H. N. Poiss. ii, p. 414, pi. 38. 

 Lutianus rivulatus, Day, Fish. India, p. 37, pi. xi, fig. 4 (see synon.). 



Cutty pirium, Tarn. 

 D. 10/15. A.3/8-9. C.17. L.l.45-50. L.r.56/50. L.tr.8/19. C.pyl.5. 



Length of head 3 to 3|, height of body 3 in the total length. 

 Eyes diameter 4| in length of head, 1^ from end of snout, and 

 rather above 1 apart. Vertical margin of preopercle finely ser- 

 rated, even in the well-developed notch that is above its angle to 

 receive the interopercular knob ; horizontal margin more coarsely 

 serrated in its posterior portion than it is on its vertical border. 

 Interopercle with a large triangular tuberosity directed a little 

 upwards and backwards. Fins dorsal spines strong, increasing 

 in length to the third, fourth, and fifth, which are not quite so long 

 as the highest of the dorsal rays, from the fifth the spines decrease 

 in length ; soft portion of the fin angularly rounded ; ventral 

 reaches the anus. Anal spines strong, the second equals the high- 

 est of the dorsal ; soft portion of fin angular and one third longer 

 than the dorsal; caudal slightly emarginate. Scales in oblique 

 rows above the lateral line, horizontal below, a strongly serrated 

 shoulder scale, and two rows of broad scales over the nape. Colour 

 (in the immature) back olive, with a slate-coloured spot in centre 

 of each scale ; abdomen greyish with horizontal golden lines crossing 

 the centre of each scale, and vertical dark ones along their bases. 

 Several bright blue lines on preopercle, opercle, and snout. A 

 white blotch four scales long on the lateral line opposite the third 

 to the fifth soft dorsal ray, having a wide black edge to its upper 

 third. Dorsal slate-coloured, above reddish with a narrow white 

 edge ; pectoral reddish ; ventrals slaty with a dark edge ; caudal 

 bluish, tipped with red. Generally vertical bands are more or less 

 distinct. In the adult about 15 inches in length the mark on the 

 lateral line becomes indistinct, the golden shade is wanting, but 

 the blue spots remain. The white edge to the fins is also usually 

 absent. 



Hab. Eed Sea, east coast of Africa, seas of India, Malay Archi- 

 pelago, and beyond. 



