748 MR. F. DAY ON THE IDENTITY OF [Dec. 19, 
4, On the Identity of Arnoglossus lophotes, Giinther, with 
A. grohmanni. By Francis Day, F.Z.S. 
[Received November 6, 1882.] 
(Plate LIII.) 
In the issue of ‘ Nature’ for October 5th (vol. xxvi. p. 556) will 
be found a notice that Professor Moseley had obtained off. Cardiff 
a specimen of Arnoglossus lophotes, Giinther, hitherto known only 
from two dried skins in the Couch collection, the locality of which 
was uncertain. This specimen was said to establish the validity of 
Dr. Giinther’s classification of this fish as a distinct British species. 
The article being unsigned, I have no means of ascertaining who 
the author of this interesting statement may be ; and while expressing 
my individual satisfaction that Professor Moseley has clearly obtained 
a pleuronectoid fish hitherto not recorded from the British seas, I 
would beg leave to draw attention to a few errors in the article. 
First, there are three, not two, skins of Arnoglossus lophotes, Giinther, 
in the British Museum ; secondly, they came from Yarrell’s, not from 
Couch’s collection; while, as no doubt can exist of the identity of 
these skins with Professor Moseley’s specimen, I propose to show that 
Arnoglossus lophotes, Giinther, is a synonym of Arnoglossus groh- 
manni, Bonaparte. 
As, when writing the portion of my ‘ British Fishes ’ which contains 
the plevironectoids, I had to investigate the question of the skins in 
the British Museum, and whether on such grounds I could recognize 
Arnoglossus lophotes as a British species, it may be interesting to 
explain why I was unable todoso. This conclusion I still believe to 
have been sound ; for I was under the impression that the specimens 
did not constitute a new species, but were identical with the Medi- 
terranean Arnoglossus grohmanni, from which locality I also believed 
they had been obtained. 
The references to this fish are as follows :— 
ARNOGLOSSUS GROHMANNI. (Plate LIII.) 
Pleuronectes grohmanni, Bonap. Cat. Met. p. 47, no. 401; Fauna 
Ital., Pesce. tav. 98. fig. 2: Canestrini, Arch. per la Zool. i. p. 12, 
t. 1. f. 3 (58 scales along the lateral line) ; Moreau, Poiss. France, 
iil. p. 326, fig. 185. 
Arnoglossus grohmanni, Giinther, Catal. iv. p. 417; Giglioli, 
Catal. Pesce. italiani, p. 38, no. 315. 
Arnoglossus lophotes, Giinther, Catal. iv. p. 417; Couch, Fish 
Brit. Isles, iii. p. 178 c. fig. (with abnormal curve to the lateral line). 
In the ‘ Catalogue of the Fishes of the British Museum,’ iv. p. 417, 
Dr. Giinther makes Canestrini’s fish the same as Bonaparte’s. His 
figure and description agree with Mediterranean specimens which I 
exhibit, received from Prof. Giglioli of Florence, which are identical 
with Prof. Moseley’s fish. In the ‘Catalogue,’ J. c. pp. 417-418, 
