425 APPENDIX. 



TRIGLA aspera. Viviani^ Cuv. iv. Ciliated Gurnard. 



At certain seasons this interesting species, very correctly de- 

 scribed by ^llsl. Cuvier and Valenciennes, is common in 

 Sicily. The largest individual I ever met with, only measured 

 five and a half inches. As the colours have not been as yet 

 described from the life, I subjoin the following: — The head 

 and upper parts are light cinereous red, variegated or mottled 

 with darker and brighter red ; the pectoral fins, externally, are 

 quite white, with a few red spots near the base ; internally, 

 they are light cinereous blue, with transverse bands of reddish 

 brown ; the sides of the body are silvery, with a tinge of yel- 

 low ; the under parts pure white. The snout is shaped soine- 

 thing like that of T. Lyra, being formed of two broad project- 

 ing toothed plates. 



TRIGLA Sicula. Sicilian Gurnard. 



Lateral line smooth ; pectoral and ventral -of equal 

 length, and reaching only to the vent ; hody banded 

 with raised lines on the upper half of the sides ; about 

 twelve raised tubercles, disposed longitudinally from 

 the pectoral spine to the vent. 



Inhabits Sicily. 



This species (for such I must now consider it), being merely noticed in 

 my MSS. as a probable variety of Pini, is not fully described in all the par- 

 ticulars of its structure, so that the number of the fin rays are unfortu- 

 nately omitted. From a sketch, however, which was made at the time 

 from a fresh specimen, it appears that the first dorsal fin is rather higher 

 than in T- Pini ; the vent is immediately under the commencement of the 

 second dorsal, while the pectoral is not longer than the ventral fin ; the 

 upper caudal lobe seems to be the longest ; the elevated transverse lines on 

 the body are simple, and the furcation of the lateral line on the caudal is 

 very distinct ; and this fin is quite as long as the pectoral, whereas in Pini 

 it is scarcely half the length. The colour of the pectorals, in these two 

 species, are also very different In Pini, as before described, both the 

 outer and the inner surface are the same at their upper half ; viz. of a uniform 

 dark blackish brown, the rays pale; while their lower or basal half is red- 

 ish. In Sicula, on the contrary, the two surfaces materially differ ; the 

 outer has a greyish ground, with reddish transverse bands ; while the inner 

 surface is brown, with the rays and margin red. All the scales are small 

 and rough to the touch, but the lateral line, although elevated, has no 

 prickles. A comparison of the specific characters here assigned to each, 

 will render any further observations, in this place, unnecessary. It is by 

 no means rare on the coast of Palermo in January, and many specimens 

 were examined, none of u'hich exceeded 6 inches. Its general colour 

 and structure, in all other respects, seems to have been similar to that of 

 Pini, as no further differences were noted at the time. 



in several particulars ; it has, for instance, four spines, instead of two, in 

 front cf each orbit ; the second dorsal fin ends, in Pini, over the fast ray but 

 one of the anal, and the first dorsal spine is not serrated externally in Cucu- 

 iits,, as in the true Pini. 



