q^J^a) 



480 Part III. — Twentieth Annual Report 



and lucifera were dredged at Station V., Firth of Forth, in April, the one 

 on the 24th and the other on the 26th. Diastylis tumida, Lilljeborg, 

 was obtained in a bottom tow-net gathering from 60 fathoms, about ten 

 miles off Aberdeen, collected on August 21st, and Pseudocuma similis, 

 G. 0. Sars, was dredged at Smith Bank, Moray Firth, on February 

 15th, and at Station V., Firth of Forth, on April 24th; this is an 

 addition to the crustacean fauna of the Forth. The two species belong- 

 ing to the Cumellidse, Cumella pygmcea, G. O. Sars, and Nannastacus 

 unguiculatus, Bate, were obtained in some bottom mud brought up in a 

 tow-net about 22 miles to the north of the Shetland Islands on May 17th. 

 Cumella was also observed in a gathering collected in Uyea Sound between 

 Unst and Uyea Island on the 18th, and also in some dredged material 

 from the west end of Station VI., Firth of Forth, collected on the 22nd 

 of the same month. In this last gathering the somewhat rare but widely 

 distributed Psemsfocwma pulchella, G, 0. Sars, was also obtained. 



Order PODOPHTHALMA. 

 Sub-Order SCHIZOPODA. 



In the gatherings forwarded by the " Garland " from the Firth of 

 Forth during the past year, the schizopod Erythrops goesii was, as 

 usual, of frequent occurrence. Previous to the investigations instituted 

 by the Fishery Board this species had not been recognised as a member 

 of the British fauna. Erythrops elegans, G. O. Sars, has also been 

 obtained in the Forth estuary during the past year, and the curious 

 copepod-parasite Aspidoecia normani, Giard and Bounier, was found 

 adhering to a specimen of both Erythrops elegans and goesii. Siriella 

 armata (M. Edw.) was obtained in the Firth of Forth in a bottom tow- 

 net gathering from Station IV. collected on April 22nd, and Siriella 

 crassipes in a gathering from Station V. collected on April 24th. 

 Mysidopsis angusta, G. 0. Sars, was obtained in the same gathering with 

 Siriella crassipes, and in a gathering from Smith Bank, Moray Firth. 

 Rhoda raschii (M. Sars) was, as usual, frequent in many of the gatherings 

 forwarded to the Laboratory. It will be observed that the Rev. Mr. 

 Stebbing has restored Mr. Sim's generic name Rhoda for the group to 

 which this species belongs.* 



Sub-Order MACRURA. 



Pasiphaia sivado (Risso) was obtained in 95 fathoms in Loch Linnhe 

 on April 2nd, 1900, but the tow-net gathering in which it occurred was 

 not examined till the following March. A specimen of Pandalus 

 montagui (with Phryxus (?) ahdominalis attached) was found in a gather- 

 ing from Station III., Firth of Forth, collected on May 9th. A specimen 

 of Spirontocaris securifrons, Norman, which also had a Phryxus (?) 

 ahdominalis attached to its abdomen, occurred in a bottom tow-net 

 gathering collected in 78 fathoms, 110 miles north-east of Buchan-ness, on 

 May 15th, while Spirontocaris pusiola, with what appeared to be the 

 same species of parasite, was obtained in a gathering collected in the Forth 

 to the west of Queensferry on April 26th. Crangon (Cheraphilus) nanus 

 was obtained at Station V, on April 26th, and Calocaris macandrece was 

 obtained at the same station as well as at Station III. ; this Macrurid 



* Arctic Crustacea : Bruce Collection, by the Rev. T. R. R. Stebbing, Ann. and Mag- 

 Nat. Hist. (7), vol. v. (Jany. 1900), p. 10. 



