of the Fishery Board for Scotland. 271 



Eurydice pulclira, Leach. 



Eurydice was taken with the surface tow-net by the " St. Andrew " on 

 October 15th while at anchor in Lerwick Bay, Shetland ; only one or two 

 specimens were observed. Rev. A. M. Nor man has recorded the same 

 species from St. Magnus Bay. 



IDOTHEID.E. 



Idothea pelagica, Leach. 



Specimens of this small Isopod were frequently observed in the 

 stomachs of Pollacks and Flounders, Pleuronectes flesus, captured in the 

 salmon-nets in the Bay of Nigg during the past spring and summer 

 (1900) ; sometimes they occurred in considerable numbers and in a fairly 

 perfect condition. The same Isopod was also occasionally observed in 

 tow-net gatherings collected in the Bay ; the specimens observed com- 

 ■ prised both males and females — some of the latter with ova. 



Idothea emarginata (Fabricius). 



This Idothea was also of frequent occurrence in the stomachs of fishes 

 captured in the salmon-nets in the Bay of Nigg ; it was also obtained in 

 some of the gatherings collected by the " Garland " off Aberdeen in 

 November last. 



Idothea linearis (L.). 



This species was obtained in the stomachs of Pollacks captured in the 

 salmon-nets in the Bay of Nigg — especially in the stomachs of those 

 captured in April. In one or two of the stomachs of Pollacks captured 

 on the 2nd of the month Idothea oaltica, pelagica, emarginata, and 

 linearis were observed, together with ParatyJus swammerdami, Amaihilla 

 homari, Parajassa pelagica, Caprella septcntrionalis, and a post-larval 

 Eel, " Leptocephalus." 



ArCTUKIDjE. 



Astacilla intermedia (Goodsir). {=Astacilla affinis, G. 0. Sars.)* 



Males and females of this Isopod were obtained in three separate 

 gatherings of Crustacea collected by the " St. Andrew " about fifty miles 

 south-east of Fair Island, in about 65 fathoms, on October 19th, but only a 

 few specimens altogether were observed. Another species — Astacilla 

 longicornis (Sowerby) — is described by Rev. A. M. Norman as common in 

 the Shetland Islands.f No specimens, however, were observed in the 

 gatherings collected by the " St. Andrew," but a few were obtained in 

 one of the deep-water gatherings collected by the "Garland" off Aberdeen 

 on October 25th; this gathering was from 60 fathoms. It also occurred 

 in a gathering from 45 fathoms collected on November 11th. 



Arcturella dilatata, G. O. Sars. 



This somewhat rare species was obtained in one of the gatherings col- 

 lected to the east of the Fair Island on October 12th. The only other 



* Sars, " An Account of the Crustacea of Norway," vol. ii., Parts v. and vi. (1897), p. 90, 

 PI. XXXVII., fig. 2. The Kev. A. M. Norman considers that A. affinis, G. O. Sars, is 

 identical with Goodsir's A. intermedia. 



f Brit Assoc. Rept., 1869, p. 289. 



