Crustacea and Mollusca new to the Fauna of the Forth. 155 
be ascribed to any known species. Through the investi- 
gations carried on by the Fishery Board thirteen additional 
species of Schizapods have been added to the Forth fauna. 
Nine of these are recorded in the Board’s Report published 
last year. The species which I now exhibit have been 
observed since that Report was published. They are as 
follows :— , 
Mysidopsis didelphys, Norman. 
Uysis didelphys, Norman, Dredging Report, Trans. Tyne Nat. F. Club, vol. 
We P= 270; pl. xi oes. (9212. 
Mysidopsis didelphys, G. O. Sars, Mon. over de ved Nor. Kyster forekom- 
mende Mysider, part ii., p. 20, pl. vii. (1872). 
This appears to be a rare species in the Forth. I observed 
it among some tow-net material collected near Fidra during 
November last. 
Erythrops goésti, G. O. Sars,—new to Britain. 
Mysis erythrophthalma, Goés, Crust. Decap. mar. Svec., p. 18. 
Erythrops goésii, G. O. Sars, Mon. over de ved Nor. Kyster forekommende 
Mysider, parti., p. 24, pl. i. (1870). 
_ I find this species frequent all over the Forth from Inch- 
keith to the May Island, as well as outside the May. How 
it happens to have escaped observation hitherto may not be 
easily explained. Another species, Z. pygmea, G. O. Sars, - 
which I first observed in East Loch Tarbert, Loch Fyne, was 
also new to Britain. A third species, #. serratus, G. O. Sars, 
was discovered by Dr A. M. Norman among the Shetland 
Islands. They are all small, but easily recognised, when 
living, by their bright red eyes. The eyes turn whitish 
after being kept in spirit awhile. 
Leptomysis gracilis, G. O. Sars. 
Mysidopsis hispida, Norman, Report Brit. Assoc. for the Advancement of 
2 Science, 1868, p. 267. 
Leptomysis gracilis, G. O. Sars, Mon. over de ved N or. Kyster forekommende 
Mysider, part iii., p. 31, pls. xix., xx (1879). 
Several specimens of this species have been observed 
among tow-net material collected to the east of Inchkeith. 
Previous Scotch records for it are the Moray Firth and the 
Shetland Islands. 
