of the Fishery Board for Scotland* 



323 



specimens taken off the Cloch Lighthouse, in 43 fathoms, muddy bottom.* 

 Mysidopsis angusta, G. 0. Sars, was frequently observed among the tow- 

 net material collected in the Moray Firth. Two specimens of this species 

 were taken by me at North Bay, Barmore, Loch Fyne, February 12, 1886, 

 which was the first record of its occurrence in the Clyde district. 



Leptomysis gracilis, G. 0. Sars. 



Mysis gracilis, G. O. Sars, Beretning om en i Sommcren 1863, 



foretagen zoologisk Reise, p. 23. 

 Mysidopsis hispida, Norman, Last Report of Dredging among the 

 Shetland Isles : Report of the Brit. Assoc. for the Advance- 

 ment of Science, 1868, p. 267. 

 Leptomysis gracilis, G. 0. Sars, Mon. over de ved Norges Kyster 

 forekommende Mysider, P. 3, p. 31, pis. xix., xx. 

 Habitat. — Several specimens of this species have been taken among 

 bottom tow-net material collected eastward of Inchkeith, off St Monance, 

 and near Fidra during October and November 1888. Previous British 

 records for L. gracilis, are the Shetland Islands (Norman), and the 

 Moray Firth. A good number of specimens were observed by me among 

 the tow-net material collected in the Moray Firth. 



Heteromysis formosa, Smith. 



Heteromysis formosa, Smith, Report upon the Invertebrate 

 Animals of Vineyard Sound and Adjacent Waters. 

 Habitat. — One or two specimens taken in some tow-net material 

 collected eastward of Inchkeith during October 1888. Two specimens 

 were also taken by the Rev. A. M. Norman at Guernsey in 1865, and these 

 are the only records of its occurrence in Britain. It comes very near 

 Heteromysis (Chiromysis) microps, G. 0. Sars, which only seems to differ 

 from H. formosa in the inner branch of the uropods being furnished with 

 only a single spine on the inner margin. 



Siriella armata (M. Edwards). 



Cynthia armata, M. Edw., Hist. Nat. de Crust. 



Mysis griffithsice, Bell, Brit. Stalk-eyed Crust., p. 342 (1853). ~ 



Siriella armata, G. O. Sars, Nye Bid. til kund. om Mid.-hav. 



invert.-fauna, p. 96, tab. xxxv. (1876). 

 Mysis griffithsice, Henderson, Decap. and Schizop. Crust, of the 



Firth of Clyde, p. 41, and (Siriella armata), App., p. 43, 



(1886). 



Habitat. — One specimen (fern.) among bottom tow-net material from 

 the ' Fluke Hole' off St Monance, collected February 1889. This differs 

 from the specimen figured by G. O. Sars by having five small spines 

 between the two large ones at the distal end of the telson, instead of four 

 as in his figure. The specimen he has figured is a male, and exhibits one 

 or two other points of difference, but which are merely sexual. It was 

 first described as British by Prof. Bell, from specimens sent to him by 

 Mrs Griffiths, who obtained them at Torquay. It was taken by me in 

 the vicinity of East Loch Tarbert (Loch Fyne) about the end of October 

 1885. It is also recorded from Cumbrae, on the authority of Mr Robertson 

 in Henderson's Decapod and Schizopod Crustacea of the Firth of Clyde, 

 Previous to the summer of 1887, only four authentic species of Schizopoda 

 were known to occur in the Firth of Forth (the three forms recorded by 

 Goodsir are not sufficiently described to admit of their being identified 

 with known species) ; whereas, eighteen are now included among the 

 invertebrate fauna of the estuary. 



* Decapod and Schizopod Crust, of the Firth of Clyde, p. 39, 1886. 



