ANNALS OF SCOTTISH NATURAL HISTORY 224 



Munna Kroyeri, Goodsir. 



Goodsir described this species from specimens obtained in the 

 Firth of Forth, where I have also taken it. Dr. Robertson records 

 M. Kroyeri from the vicinity of Cumbrae, Firth of Clyde ; it does 

 not appear to be a very common species. Munna Whiteana, 

 Spence Bate and Westwood, which has also been recorded for the 

 Clyde, is, according to Sars, only the female of M. Kroyeri. This 

 species, it may be noted, has the anterior portion of the margins 

 of the caudal segment toothed as in M. Boecki, but the apical 

 lamellae are not serrate. 



Paramunna bilobata, G. O. Sars. 



I collected a number of specimens of this Isopod in East Loch 

 Tarbert, Loch Fyne, in 1886, but being unable at that time to 

 determine the species, they were put aside and forgotten. Last 

 year, when examining a small gathering of micro-crustacea collected 

 by F. G. Pearcey at Otter Spit, Loch Fyne, I observed this species, 

 and recorded it in " The Annals of Scottish Natural History " 

 for January last, stating that it appeared to be new to the British 

 fauna ; shortly afterwards the East Loch Tarbert specimens collected 

 in 1886 turned up. Besides these Clyde records, I have now also 

 to record Paramunna for the Firth of Forth, having found it in 

 gatherings of micro-crustacea collected in that estuary in 1894 and 

 1895. 



Pleurogonium rubicundum, G. O. Sars. 



I have obtained this little Isopod in gatherings of micro-crustacea 

 from the Firth of Forth collected in 1894 and 1895, and also from 

 Aberdeen Bay, but it seems to be a scarce species. In this species 

 the lateral extremities of the four anterior segments of the mesosome 

 are rounded or only slightly angular, and have each a short, straight, 

 and blunt-pointed spine projecting from the middle of them. I 

 have not yet observed this species in the Clyde, but it may likely 

 occur there also. Off Montrose, 1892. 



Pleurogonium inerme, G. O. Sars. 



The late Dr. Robertson has dredged this species off Farland 

 Point, Cumbrae, Firth of Clyde, and records it in the second part 

 of his catalogue of Clyde Amphipods and Isopods. It also occurred 

 amongst some micro-crustacea from South Bay, Firth of Forth, 

 collected in April 1891, of which this is the first record: one or 

 two of the Forth specimens carried ova. Pleurogonium inerme is 

 somewhat like the last species, but it wants the lateral spines ; it 

 appears to be rare in the Scottish seas. Also in Moray Firth, May 

 1893. 



