MABINE BIOLOGICAL STATION AT PORT ERIN. 283 



were all obtained from washings from sponges collected 

 by Dr. Hanitsch at Port Erin in August, 1894. 



Mr. Thompson reports as follows : — 



" In addition to those mentioned by Mr. Scott, seven 

 species of Copepoda, new to the district, have been re- 

 corded during the past year, viz., Cyclops magnoctaviis, 

 Cyclops eicarti, Centropages typicus, Ameira longicaiidata, 

 Acontiophorus elongatiis, Cancer ilia tubidata, and also 

 one species new to science, viz., Pseiidocyclopia stephoides, 

 n. sp. This crustacean has just been described, and its 

 description and figure will be shortly published in the 

 ' Transactions of the Liverpool Biological Society.' It 

 combines some of the characters of the genus StepJios 

 with those of Pseiidocyclopia, the latter predominating 

 sufficiently to determine its position in that genus. 



" Surface tow-nets have been continually employed 

 during the several marine expeditions undertaken by the 

 Committee, also tow-nets attached to the rope a few 

 fathoms above the dredge. The latter device has proved 

 a success, collecting some good species of Copepoda, as 

 well as Cumacea and Amphipoda, which are seldom or 

 never obtained on the surface. Amongst the Copepoda 

 thus obtained were several specimens of Pseiidocalaniis 

 armatus, found along with a shoal of Pseudocalanus elon- 

 gatiis. A widely extending shoal of Anomalocera pater- 

 sonii was observed off the Isle of Man in May, the only 

 occasion on which we have taken this species during the 

 year. On several occasions during the past summer we 

 have taken Centropages typicus in fair quantity, a species 

 which has never occurred before in our district, although 

 carefully looked for, and not a rare species elsewhere. 

 On several occasions, notably in the early part of June, 

 the surface organisms have been singularly scarce. 



" Special care has been taken to wash and sieve through 



