APPENDIX. 423 



gill-covers, are three others, placed in a triangle ; two more are lower down 

 on the gills, and a larger one just above the base of the pectorals ; lateral 

 line prominent, but quite smooth ; pectorals reaching to half the length of 

 the trunk ; scales remarkablj' small, even minute ; ventral rays all forked ; 

 the first dorsal spine serrated, as in Pint; the dorsal row of spines small and 

 simple ; caudal so slightly lunated as almost to be even. Colour. — Head, 

 back, and sides olivaceous green, variegated throughout v/ith dark spots 

 and freckles ; the lower half of the sides reddish silvery ; dorsal and caudal 

 fins pale, with a few brown spots; the three digitated processes freckled 

 with brown; ventral fins brown; pectoral fins with the outer surface, 

 when perfect, covered with a dusky white skin ; this skin is easily rubbed 

 off, and then the colour of the membrane is seen to be blackish, with 

 darker spots of rich brown ; the under surface is the same, except on the 

 lower half, dark blue, or more properly black, with spots of a bright celestial 

 or azure hue, a few of which are also sca'teretl on the upper half. The 

 foregoing description is not so complete as 1 could have wished, although 

 it seems quite sufficient to separate this elegant species from the others ; 

 but I neglected to make a finished drawing, and the specimens in spirits 

 sent to the British and Zoological museums cannot now be found. 



TRIGLA Adriatka. Auct. 



Snout short ; profile obtuse ; transverse ridges of the 

 hody extending to the telly ; the dorsal spines^ and 

 those on the lateral line^ simple ; anal fin of 1 6 rays ; 

 caudal lunate ; the lower lohe longest ; no spines on 

 the snout. 



Dorsal 10, 16; pectoral — ? ventral — ? anal 16; length 

 1 foot. 



Inhabits Sicily. 



Head small, the profile short and abrupt ; orbital or superciliary plate 

 with from three to four minute spines before the eye ; nuchal spines rather 

 longer than those above the pectoral, with a small one at their base behind 

 the eye ; angle of the preoperculum pointed, with a very minute spine, 

 scarcely perceptible; upper part of the suboperculum forming two spines, 

 one directed upwards, the other pointing backwards, and covering the base 

 of the large pectoral spine ; margin of the snout or upper jaw nearly round, 

 and without any distinct prickles; lower jaw hardly shorter than the 

 upper; first dorsal fin commencing exactly even with the pectoral, the 

 first ray externally serrated and equal to the third, the second rather 

 longer: second dorsal as high as the fifth spinal ray, slightly narrowing to 

 its extremity : the last ray, like that of the anal, is thickened, but not 

 doubled ; pectoral fin lor.g, extending as far as the seventh ray of the se- 

 cond dorsal; ventral much shorter, and only reaching to the commence- 

 ment of that fin; caudal distinctly lunatcii obliquely, so that the under 

 lobe is always longer than the upper; ventral fin as long as the second 

 dorsal, but placed a little behind it, so as to bring it nearer the tail : the 

 three digitated processes are thicker and longer than in any other species 

 found in the Mediterranean ; scales small, round : the transverse ridges, 

 verticellated, extend from the back to the suture of the belly; lateral line 

 marked by a row of small simple spines or prickles. 



Colour. — Body bright crimson red; darker on the head; the sides- 

 pale red and clouded ; the belly white ; the appendages and base of the 

 pectorals are marked with irregular spots or blotches of black ; pectoral fins 

 pale reddish white, elegantly marked with freckled irregular bands of 

 brown ; the inner surface is cinereous blue, the rays brighter, and having 

 close to them spots of a cerulean blue ; similar spots are round the margin 

 of the fin ; while the lower part is pale clouded red. In some specimens 



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