NEW SPKCTES OF LOrHOPODELIiA, 



249 



Subsequently they were transferred to 70% Alcohol, stained with Erlieh's 

 Haematoxylin, and mounted in Canada balsam in excavated cells. 



2. The specimen-; were anaesthetised as above and were transferred to a fix- 

 ative of Id ' r _ solution n!' Copper Sulphate 1 ; then to 70 % alcohol, stained with 

 Erlieh's Haematoxylin, and mounted in Canada balsam in excavated cells. 



In the second method it was found that over fixation in Copper Sulphate 

 caused the specimens to become more or less opaque, and it was hard to deter- 

 mine a period lor effective fixation by this method. Material fixed by these 

 methods will preserve well in 70 r r Alcohol or 5 ' , Formalin. 







Lophopodella picta Bretnall. A, two polyps; B, a statoblast. 



3. The Genus Lophopodella. 



The diagnosis of the genus Lophopodella as given by Annandale both ir; the 

 key on p. 212 and in the diagnosis on p. 231, may lead to some confusion. In 

 the former it is stated that the "zoaria remain single throughout life"; and in the 

 latter "Polyparia do not form compound colonies." Both these statements would 

 seem to suffer contradiction on reference to the text-figures (especially that on p. 

 172) and the plate; a contradiction that is not lessened by a further explanation 

 on p. 234 that "Although the zoaria do not form compound colonies by secreting 

 s common membrane or investment, they are markedly gregarious " Rousselet 5 

 founded the genus on the statoblast of his genotype (Lophopus thomasi) ; but he 



4. As recommended by Harmer, Cambridge Natural History, Worms Rotifers and 

 Polyzoa, 1896, p. 522-. 



5. Eousselet, Journ. Quekett Mic. Club (2) IX., 1914-6, p. 51. 



