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Show 40 DR. A. GUNTHER ON 48. NOTOPTERUS CHITALA, Ham. Buch. 49. MONOPTERUS JAVANENSIS, Lacep. 50. ANGUILLA SIDAT, Blkr. 51. MUR-ENA TILE, Ham. Buch. LOPHOBRANCHII. 52. DORYICHTHYS CAUDATUS, Ptrs. PLECTOGNATHI. 53. TETRODON PALEMBANGENSIS, Blkr. 54. TETRODON LIURUS, Blkr. 5. A Contribution to our Knowledge of British Pleuronectidse. By Dr. A. G U N T H E R , F.R.S., V.P.Z.S. [Eeceived December 6, 1889.] (Plate III.) 1. On the Occurrence of Arnoglossus lophotes and Arnoglossus grohmanni in British Seas. In the fourth volume of the ' Catalogue of Fishes,' p. 417 (1862), I described from three skinned specimens which formed part of the Yarrell Collection a new species of Arnoglossus under the name of A. lophotes. I was unable to give, the locality whence these specimens were obtained, but inferred from the mode of their preservation that it was more probable that they came from British seas than from the Mediterranean. I placed this new species close to Arnoglossus grohmanni from the Mediterranean, which is sufficiently well figured in Bonaparte's ' Fauna Italica,' and correctly described by Canestrini (Arch. Zool. i. p. 12, tav. i. fig. 3) ; and pointed out such differences between the two species that it seemed almost impossible to confound them. The uncertainty about A. lophotes being a British species was, however, soon removed by Couch, who in his 'History of British Fishes' (1804) states that he had examined a specimen obtained at Plymouth, and by Professor Moseley, who in lb82 captured another example of the same species in the trawl off Lundy Island, which he deposited in the British Museum. To the late Mr. F. Day neither the evidence brought forward by me nor that of Couch seemed satisfactory enough to introduce this fish into the British fauna (Fish. Great Brit. ii. p. 23), and it was only atter Professor Moseley's capture that he admitted it, asserting, howexer, that it was identical with the Mediterranean A. grohmanni (Proc. Zool. Soc. 1882, p. 748, pi. 53). The opportunity of again setting right this error is now offered [Jan. 14, M. M., I. M. M. M. M. M. |
