THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[THIRD SERIES.] 

 No. 57. SEPTEMBER 1862. 



XVII. — Notes on rare and little-known Fishes taken at Madeira. 

 By James Yate Johnson, Cor. Mem. Z. S. 



No. I. 



Order PHARYNGOGNATHI, Mull. 



Fam. Cyclolabrid.se. 

 Centrolabrus trutta, Lowe, sp. 



The genus Centrolabrus was proposed by Dr. A. Giinther, in his 

 " Synopsis of the Labroid Genera/' which appeared in the 'Ann. 

 and Mag. Nat. Hist.' for November 1861, for the reception of 

 those species of the genus Acantholabrus, C. & V., which have 

 their teeth in a single series instead of in a band. The species 

 shortly described by Mr. Lowe, in the Proc. Zool. Soc. for 1833 

 (p. 143), under the name of Crenilabrus trutta, will fall into the 

 genus Centrolabrus ; and it appears to me that the three species 

 described by M. Valenciennes in his ' Ichthyologie Canarienne ' 

 (p. 64), under the names of Acantholabrus viridis, A. romeritus, 

 and A. romerus, not only belong to the present genus, but are 

 in reality merely varieties of the very species now under con- 

 sideration. 



First, with respect to A. viridis : this fish was considered by 

 Valenciennes to be near the fish which Mr. Lowe originally called 

 Crenilabrus luscus, but which was afterwards shortly described 

 by him under the name of Acantholabrus imbricatus (Trans. Zool. 

 Soc. vol. iii. p. 11), a fish now ascertained by Dr. Giinther to be 

 identical with A. Palloni. With the latter species I am well 

 acquainted, having procured several specimens ; and it is quite 

 distinct from the fish described and figured by Valenciennes 

 (pi. 17. fig. 4) under the name of A. viridis, in colouring, shape, 

 and fin-formula, and by the possession of rows of imbricated 



Ann. if Mag. N. Hist. Ser. 3. Vol. x. 12 



