418 Deep-sea Trawling off the S.W. Coast of Ireland: 
Macrurus levis, Lowe. 
Several specimens, from 250 fath. 
New to the British fauna. Not uncommon in the Medi- 
terranean and at Madeira; a single example is known to 
have been obtained on the coast of Denmark (Liitken), one 
at Bohusliin (Ma/m), and another off the coast of Pernam- 
buco (‘ Challenger’). 
Rhombus Boscit, Risso. 
Several specimens, from 150 and 315 fath. 
New to the British fauna. This species, originally dis- 
covered in the Mediterranean, was, probably owing to the 
small size or condition of the specimens, inaccurately de- 
scribed and figured by Risso, Bonaparte, and Canestrini. 
The scales were represented much too large, and the notes on 
the dentition were vague. Hence it was referred by myself to 
the genus Arnoglossus at a time when no specimens were avail- 
able for examination (Fish. iv. p. 416), but there was 
sufficient evidence of its being a very distinct species from 
any of the Flat-fishes known to inhabit the British Seas. 
Nevertheless we find it in the ‘ Fishes of Great Britain’ by 
IF, Day (who seems to have followed Giglioli) relegated to 
the synonymy of Rhombus megastoma, an error which in 
1883 was corrected by Vinciguerra*, and in 1887 by Kolam- 
batovi¢ f, both of whom clearly pointed out the distinctive cha- 
racters of these two species. 
Rhombus Boscti may be recognized at the first glance by 
its enormous eyes, which are much larger than in Rhombus 
megastoma, as may beseen from the following measurements :— 
RR. megastoma. R. Boseiz. 
lines. lines. 
Fotal length: ss 498 170 
Length of head. . . 50 46 
Length of osseous orbit 11 15 
Length of snout . . 15 11 
Rhombus megastoma never has the large black spots on the 
dorsal and anal fins which are so conspicuous a feature in 
h. Boscii, although they may also disappear in specimens of 
the latter species if they have been allowed to get stale before 
they are placed in spirits. The vomerine teeth are present 
* Vinciguerra, Ann. Mus. Ciy. xviii. 1883, p. 570. 
+ G. Kolombatovie, Sui Pleuronectes Boscii e megastoma. Spalato, 
1887. 8vo. 
I amvalso indebted to the Marquis G. Doria for kindly communicating 
to me specimens of both species from the Gulf of Genoa, and to Professors 
Doderlein and Bellotti for specimens of R, Boscii from Palermo and Nice. 
