MARINE BIOLOGICAL STATION AT I J ORT ERIN. 27 



species being Corycceus anglicus, appeared on the 29th of 

 May, 1899. In the 18th Annual Report of the Fishery 

 Board for Scotland, just published, Mr. Thomas Scott, 

 F.L.S., reports that on the very same day, May 29th, 

 this Copepod (which had not been recorded in Scottish 

 Seas before or since 1896) was taken by tow-net in the 

 Clyde in the vicinity of Ailsa Craig. The cause of the 

 sudden migration of this southern species in quantity so 

 far north is difficult to imagine. It has not been 

 observed in oar district, to my knowledge, during the 

 present year. The general results of my examinations 

 seem to indicate a remarkable sameness in the Plankton 

 throughout the seasons of the year. During the early 

 spring the nets yielded little but a profusion of Diatoms 

 and Nauplii. The Cladocera, Evadne nordmanni, and 

 Podon intermedium were the most conspicuous animals 

 taken in early summer. Since then, with the exception 

 of a single specimen of Thaumaleus thompsonii, Gries- 

 brecht, new to the district, taken on September 8th, and 

 another since, on November 18th, in Port Erin Bay, about 

 half-a-dozen common species of Copepoda usually formed 

 almost the entire bulk of the material obtained." 



"In a paper by Mr. Andrew Scott and myself, pub- 

 lished since the last Annual Report, we have given the 

 following species new to the district, including one new 

 to science: — Ameira exilis, T. and A Scott; Delavalia 

 mimica, T.S.; Laophonte denticomis, T.S.; Leptopsyllii* 

 intermedins, T. and A.S.; L. herdmani (new species), I.C.T. 

 and A.S.; Lichomolgus hirsutipes, T.S.; Hersiliodes littoralis 

 (T.S.); Caligus gurnardi, Kroy.; Chondracanthus radiatus, 

 Kroy; and Nicothoe astaci, Aud. and M. Edw." 



Mr. Andrew Scott, from the Lancashire Sea Fish 

 Hatchery, at Piel, sends me the following list of twenty 

 additions to our fauna : — 



