of the Fishery Board for Scotland. 



273 



branches ; the end-joint of the outer branches bears live setae round the 

 inner margin and apex, so does the end-joint of the inner branches, but 

 this joint bears a seta also on the outer margin (fig. 18). The second 

 pair are somewhat larger than the first, and the outer branches are armed 

 with a terminal spine. The third pair are similar to the second ; in both, 

 the end-joints of the outer branches are provided with five setse on the 

 inner margin and apex ; the end-joints of the inner branches bear also five 

 setae as shown by the figure (fig. 19) ; the fourth pair appear to be entirely 

 absent. The fifth pair are rudimentary, and consist of a slightly produced 

 and rounded portion of the thoracic segment furnished with three short 

 and stout plumose hairs (fig. 20). The appendages to the first abdominal 

 segment resemble the fifth pair of thoracic very nearly, and are provided 

 with a similar number of setae (fig. 21). 



Habitat. — Tarbert Bank, Loch Fyne ; very rare. 



Remarl's. — In the paper on the " Marine Fishes and Invertebrates of 

 Loch Fyne," published in the Fifteenth Annual Keport of the Fishery 

 Board for Scotland, a male and a female of Artotrogus orbicularis are re- 

 corded from Tarbert Bank. The supposed male has since been ascertained 

 to belong to another genus, Aderocheres (see the record under that name), 

 while the supposed female was really a male as described above. The 

 only British specimen of a female known to me is that obtained by I. C. 

 Thompson, of Liverpool, in the Irish Sea. The remarkable circular form 

 of this species is very characteristic. 



ADDITION TO THE VERMES OF LOCH FYNE. 



Panthalis oerstedi, Kinberg. This annelid has lately been obtained in 

 Loch Fyne by Mr. F. G. Pearcey, of the Fishery Board. Unable at first 

 to identify the annelide that had gathered around itself such a huge, 

 unsightly mass of slimy mud, I afterwards remembered having had the 

 privilege of listening to a very interesting description by Professor Herd- 

 man of the habits of Panthalis oerstedi, and of the interesting researches 

 of Arnold T. Watson, of Sheffield, who had so successfully settled the 

 question that had been raised as to whether this annelid formed its own 

 tube or not, and concluded that this also was Panthalis. The surmise 

 proved correct, and I am therefore now able to make this interesting addi- 

 tion to the Loch Fyne fauna. The patient and successful researches of 

 Arnold T. Watson are fully described in a paper published by him in the 

 Transactions of the Liverpool Biological Society for 1894-95. The species 

 seems to be restricted in its distribution to water of considerable depth, 

 and with a bottom of fine mud. 



ADDITIONS TO THE FORAMINIFERA OF LOCH FYKE. 



A large number of additional records of Loch Fyne Foraminifera have 

 been obtained since the publication of the previous list. I am indebted 

 for several of these to Mrs. Robertson, of Millport, and to Mr. F. G. Pearcey, 

 of the Fishery Board. Dr. G. W. Chaster, of Southport, has also aided me 

 with this group. The species are arranged as in the previous paper. 



