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Proceedings of the Royal Physical Society. 



the numerous fish-infesting species, Dr T. Scott has recorded 

 over 20 from Scottish waters, only two, however, beiug 

 from the Firth of Forth. The following seem to be all the 

 Trematodes for which there are Forth records. It would be 

 easy to name others which must occur, and have probably 

 been observed though not recorded. 



Tristomum molce, Blanch. — From short sun-fish captured in 

 the Firth of Forth in 1890; Scott, l^th Rep. Fish. Bd. Scot., 

 pt. iii. p. 144. 



Octobothrium merlangi (Kuhn) — From gills of whiting. Firth 

 of Forth ; Scott, 13th Rep. F. B. S., pt. iii. p. 172. Dr Ashworth 

 tells me he has had this from a local haddock. 



Polystomum integerrimum, Froh. — Has been found here in the 

 common frog (Ashworth). 



Onchocotyle appendiculata (Kuhn) — Several taken by me from 

 gills of a Greenland shark stranded at North Queensferry, 10th 

 April 1906; Evans, Ann. Scot. Nat. Hist., 1906, p. 187. 



Dist07num hepaticum, Abild. — The " liver-fluke " occurs in both 

 sheep and oxen. Professor S. Stockman, in Proc. Scot. Micr. Soc, 

 ii. p. 110, writes: "During the past few years, at the Edinburgh 

 abattoir, I have examined about 110 livers from oxen harbouring 

 the Distoma hepaticum.'' Dr Stewart MacDougall records find- 

 ing the "redia" stage in specimens of the small mollusc, Limnoia 

 truncatula, taken from a trough in a field near the Pentland 

 Hills "with sheep all around" [Trans. High, and Agric. Soc, 

 1903, p. 286). Liver- rot in sheep has at various times come 

 under my notice on marshy ground on the Pentlands. [April 

 1908; Mr Little, Crosswood Reservoir, sends me specimens of 

 the fluke from a sheep, one of several he has lost there from this 

 cause during the past few months.] 



Hemiurus communis, Odhn — Dr W. Nicoll has found this in 

 a bullhead (Cottus scorpius) I sent him from North Berwick in 

 Oct. 1908; and Podocotyle atomon (Rud.) in 3-spined stickle- 

 backs, and a viviparous blenny from rock-pools, Dunbar, in May. 



The redia of a Distomum — probably a species occurring in 

 water-fowl — has been found by Dr Ashworth in L. peregra from 

 the marl-pit at Davidson's Mains. A Distomum % is recorded 

 from Sagitta; Scott, 14^^ Rep. Fish. Bd. Scot., p. 165. 



Cestoda. — Finding scarcely any printed local records of 

 Tape-worms, I have applied to several friends likely to be in 

 possession of specimens or unpublished data, with the results 

 noted below. I am especially indebted to Prof Gofton and 

 Mr R. G. Linton, Royal Veterinary College, Edinburgh, for 

 procuring me specimens of this and other kinds of parasitic 

 worms from domestic animals, and to Dr J. H. Ashworth for 

 checking my determinations and supplying other records. To 



