234 Holt & Beaumont — Survey of Fishing-r/rounds, W. Coast of Ireland, 1890-91. 



exopodite of one. The eyes are large, of a pale reddish colour. What remains 

 of one antennal scale has the chai'actcrs of the genus. The pleopods are simple. 

 Tlie telson is broken off rather short, but the proximal spines of the lateral 

 margins are rather few, as in 31. didelphjs rather than M. angiista. There is a 

 single spine on the ventral side of the otocyst, a character common to these two 

 species. The size of the eyes, the lateral margins of the telson, and the some- 

 what robust form of tlie whole animal are sufficient, as we think, to justify our 

 determination. 



From Station 115, in addition to sixteen mature and half-grown specimens, 

 we have two which are quite small. They can be referred without difficulty to 

 the same species as the larger ones, and serve, by comparison, to confirm our 

 determination of the mangled example from Station 125. 31. didelplvjs is 

 recorded by Sars from 50 to 150 fathoms, whereas 31. aiigusta has not yet been 

 taken below the 50 fathom line. 



Previous Irish Record. — Off Valentia (A. M. N.*). 



Distribution. — Shetland; Firth of Clyde ; Loch Fyne ; Moray Firth ; Firth of 

 Forth ; off Tynemouth (A. M. N.*). 



Norway ; Denmark (A. M. N.*). 



Mysidopsis gibbosa, G. 0. Sars. 



Survey. — Station 118, Ballinskelligs Bay, 32 to 28 fathoms, soft mud. August 

 21st, 1890. 



Ilaritie Laloratory. — Fahy Bay, Ballynakill, 5th March and 18th May, 1899. 



3Iuseum, Duhlin. — No. 195, 1895. Roundstone. 



Previous Irish Records. — Valentia (A. M.N.*): Valentia Harbour (A. 0. W.*). 



Distribution.— Log\\ Fyne ; Firth of Forth (A. M. N.*): Plymouth (W. 

 Garstang !) : Start Bay : Irish Sea, Port Erin (A. 0. W.). 



Norway; Denmark; Mediterranean (A. M. N.*). 



Mysidopsis angusta, G. 0. Sars. 



Survey. — Station 118, Ballinskelligs Bay, 32 to 28 fathoms, soft mud. August 

 21st, 1890. 



Station 1-18, 7 miles S.S.W. of Gregory Sound, Aran, 38 fathoms, sand. 

 April 9th, 1891. 



Previous Irish Record. — Valentia Harbour (A. 0. W.*}. 



Distribution.— E. and W. Scotland (A. M. N.*) : Dogger Bank (T. S.): Start 

 Bay, and off Plymouth. 



Norway ; Naples (A. M. N.*). 



