48 Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 
true C. pompilus. They became, in the works of systematic 
authors, the Black-Ruffe of Pennant, Perca nigra of Gmelin, 
Holocentrus niger of Lacépéde. The two other specimens which 
fell into the hands of Mr. Couch, and which were described by 
him in Yarrell’s work, were also C. pompilus, as‘is evident from 
the number of the fin-rays stated*. 
With regard to Centrolophus morio, Lacép. (Mr. Couch had 
marked his sketch with the name of Centrolophus morio?), 
Cuvier has examined the typical specimen to which Lacépéde had 
given that denomination. He found it entirely agreeing with 
C. pompilus, especially with regard to the number of the fin- 
rays; and there is not the slightest doubt that C. morio, like 
C. liparis, Risso, is a nominal species, and synonymous with 
C. pompilus. 
Finally, Centrolophus crassus, Cuv. and Val., if at all different 
from C. ovalis, cannot be confounded with our new species,— 
having the body as high as C. ovalis, and only thirty-nine rays 
in the dorsal fin. 
Two other British specimens of the Black-fish are mentioned 
in Yarrell, Brit. Fish. 3rd edit. p. 250: one came under the 
observation of the Rev. George Gordon, at Lossiemouth (Moray 
Firth), the other under that of Mr. Rudd, at Redear. No other 
information with regard to these two fishes has been preserved. 
XII.—On Additions to the Madeiran Coleoptera. 
By T. Vernon Wo taston, M.A., F.L.S. 
[Continued from vol. v. p. 459. ] 
Fam. Tenebrionida. 
Genus GNATHOCERUS. 
Thunberg, Act. Holmiens. 47 (1814). 
The present genus is identical with what I have hitherto cited 
as Cerandria,—Thunberg’s name of Gnathocerus, which until 
lately appears to have been lost sight of by entomologists, 
having the priority in point of date. Hence the common Ce- 
randria cornuta must be quoted as the Gnathocerus cornutus. 
Another species, detected by myself during the spring of 1859, 
has been added to our fauna since the publication of my last 
paper, which I conclude to be coincident (if indeed it be pos- 
sible to draw any conclusion at all from such meagre descrip- 
tions as those of Fabricius) with the Trogosita mazillosa of the 
‘Systema Eleutheratorum.’ 
* Yarr. Brit. Fish. 2nd edit. i. p. 182. 
