36 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Lancashire Sea Fisheries Report and so need not be further 

 referred to here. The rest of Mr. Jackson's time at Port Erin 

 was occupied in collecting material for his work on the larvae of 

 Higher Crustacea. He examined the various plankton 

 gatherings with the object of tracing the young stages of crabs 

 and lobsters, shrimps and prawns, and other allied animals 

 throughout their life-histories, and also in their distribution 

 over the district and throughout the year. Mr. Jackson 

 published a first report on this subject in the Lancashire Sea 

 Fisheries Report for 1912 and has in preparation a more detailed 

 account. 



Mr. V. H. Mottram continued his work on the fats of marine 

 animals. In the Easter vacation of 1913 he made collections 

 of typical carnivorous and phytophagous molluscs with a view 

 to comparing the fatty acids of the two groups. At the same 

 time further material was obtained to complete the work done 

 in 1912 on plaice and mussels. The work is still in progress, 

 and no results can yet be stated. 



Mr. Chadwick, who has been identifying the rarer Echino- 

 dermata obtained during the cruise of the " Runa," reports as 

 follows : — " Here is a list of your ' Runa ' Echinoderms* : — 



Antedon phalangium (J. Miill.). 



Antedon bifida (Penn). 



Antedon tenella (Retzius). 



Asterias muelleri (Sars). 



Pter aster militaris (0. F. Miill.). 



Ophiocnida brachiata (Montagu). 



Echinus acutus, Lamk. 



Phyllophorus pellucidus (Dub. and Kor.). 



" I am more dissatisfied even than I was last year as to the 

 specific distinctness of Phyllophorus pellucidus and P. drum- 

 mondi. Nothing short of careful records of the appearance of 



* Only the more uncommon forms. A number of other, common species 



were obtained. 



