544 MR. J. T. CUNNINGHAM ON THE [June 1 '. 



In justice to Dr. Giinther I must explain here that in December 

 last, when I first obtained specimens resembling his species A.lophotes, 

 I had some correspondence with him on the subject. After I had 

 informed him of my belief that they were the males of laterna, and 

 found that he was publishing a paper on Arnoijlossus, I requested him 

 to include in his paper my conclusion and the evidence for it, if he 

 thought the conclusion sound. But he replied that his paper had 

 already been sent to the Secretary of this Society, and that he 

 preferred to leave it as it stood, so that I might publish my obser- 

 vations quite independently. 



II. Akxoglossus geohmasni, Giinther, 



It is recorded in Dr. Giinther's paper that hitherto only one 

 specimen of this species has been found in British waters, namely 

 one obtained by the Eev. W. S. Green from a depth of 10 fathoms 

 in the Kenmare Eiver on the S.AY. coast of Ireland. I have to re- 

 cord another specimen, which was found by Mr. Walter Garstang, on 

 March 3<.1th of the present year, among material obtained by the 

 smaU beam-trawl in Cawsand Bay, Plymouth Sound, at a depth of 

 4 or 5 fathoms. In nearly all the specific characters mentioned by 

 Dr. Giinther this specimen resembles A. r/rohmanni. The specimen 

 measures 15"3 cm. in length including the caudal tin, and 5"7cm. in 

 greatest height. The numbers of fin-rays are : — 



D. 87, A, 66, P. 10, V. 6, C. 17, 



thus agreeing very closely indeed with the numbers in Dr. Giinther's 

 specimens. In the shape of the anterior part of the body, the size 

 of the eyes, the character of the mouth and jaws, the form of the 

 lateral line, the characters of the scales, and in colour the specimen 

 agrees with A. grohmanni^ and there can be no doubt that it belongs 

 to that species. But in some interesting peculiarities the specimen 

 differs considerably from those described cither hy Dr. Giinther or 

 any other ichthyologist. The anterior part of the specimen is repre- 

 sented in the accompanying drawing (see p. 545). The 2nd, 3rd, 

 and 4th dorsal fin-rays are elongate, the 2nd being much the longest. 

 The 2nd ray is very nearly as long as the hiad, being 28 mm. in 

 length, while the head measures 29-5 mm. from the edge of the 

 operculum to the apex of the lower jaw. This ray is therefore 

 considerably longer than in previously described specimens. The 

 same ray is fringed anteriorly and posteriorly by a broad plicated 

 membrane which is quite independent of the rest of the fin, so that 

 the ray presents the appearance of a feather, the broadest part of 

 the fringe being near its proximal end, where it measures 1 cm. in 

 breadth. The breadth of the fringed ray diminishes gradually to 

 zero at the apex. Thus this ray is both longer and its fringing 

 membrane much broader than in Dr. Giinther's specimens. The 

 first ray is short and fringed with a very narrow membrane, which 

 is continued at the base and posteriorly on to the root of the 2nd 

 ray. The 3rd ray is two thirds the length of the head, and very 

 slightly fringed with membrane at its outer part : this ray is sepa- 



