of the Fishery Board for Scotland. 447 



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Vlir.— NOTES ON GATHERINGS OF CRUSTACEA COLLECTED 

 BY THE FISHERY STEAMER "GARLAND," AND THE 

 STEAM TRA^\TLERS "STAR OF PEACE" AND "STAR 

 OF HOPE," OF ABERDEEN, DURING THE YEAR 1901. 



By Thomas Scott, F.L.S., Mem. Soc. Zool. de France. 



(Plates XXII.— XXV.) 



In continuation of my notes on the new and rare Crustaceans which 

 have been obtained in tow-net gatherings, and in gatherings of dredged 

 and other materials collected at different times and in various places 

 during the past year, I have to acknowledge my indebtedness to the 

 Naturalist on board the Fishery steamer "Garland," and to Mr. 

 Dannevig and others who have carried on from time to time a 

 considerable amount of interesting fishery research work during 

 1901. The collections of Crustacea forwarded to the Laboratory at 

 Bay of Nigg, in connection with these investgations, have in a number 

 of instances proved to be extremely interesting. Several apparently 

 undescribed forms have been obtained, while others, though they 

 may have been recorded elsewhere, have not previously been 

 obtained in Scottish waters. Moreover, the distribution of a number of 

 rare species described in former papers has by these researches been still 

 further extended. 



A number of rare Crustaceans— Copepods and others — have occurred 

 in gatherings collected by the " Garland " in the Firth of Forth on the 

 East of Scotland, and in Loch Etive on the West Coast. Other rare 

 forms have been obtained in gatherings collected by the steam trawler 

 " Star of Peace " while working to the east and north of the Shetland 

 Islands ; and one or two species, rarely met with, were also ca{)tured in 

 deep water (58 to 65 fathoms) about nine to ten miles to the eastward 

 of Aberdeen by the steam trawler " Star of Hope." 



There is one point in connection with these investigations which seems 

 to be of peculiar interest, and which it may not be out of place to refer 

 to liere ; it is this, that localities which have already been subjected to 

 prolonged and careful examination should still continue to yield not only 

 rare but even new forms of life. I do not refer to those minute micro- 

 scopical species which are difficult to distinguish, and which may easily 

 be overlooked even by those who have acquired a fairly extensive and 

 special knowledge, but species which from their size and shape or colour 

 are sufficiently conspicuous to attract the attention of even the casual 

 observer. Whether these forms, which are turning up in places where 

 they have not been seen before, are recent or new arrivals, or whether 

 they have escaped notice hitherto owing to their distribution being 

 limited to some particular area more or less out of the reach of the dredge 

 or the tow-net, and that, having for some reason left their old haunts, and 

 made their way to a place more accessible, have ultimately been captured, 

 is a question that may not be easily answered. The following two 

 examples will indicate more clearly tlie aspect of the question concerning 

 the distribution of species to which I refer : — 



For many years previous to 1886-87, when arrangements were made by 

 the Fishery Board for the scientific investigation of the Firth of Forth, 

 special efforts had from time to time been put forth by not a few eminent 



