110 Canon A. M. Norman — Notes on the 



Genus Leieschara, M. Sars. 



[" Beskr. over nogle norske Polyzoer," Videns.-Selskab. Forhand. 1S62, 

 p. 17 (separate copy).] 



Type, Leieschara coarctaia, M. Sars. 



I do not think that this genus, with its entirely different 

 oral opening and its avicularia, can be united with the pre- 

 viously described Myriozoon (Donati), of which the type is the 

 common Mediterranean species M. truncatum, Pallas. 



49. Leieschara plana (Dawson). 



1860. Lepralia plana, J. AV. Dawsuii, in Diu'ban (W. S. M.) and Bell 



(R.), " Contributions to Canadian Natural History " (from Rep(U-t 



Geological Survey for 18o8), Montreal, p. 33. 

 1867. Myriozoon erMstece?«?i, Smitt, ''Kritisk Forteckning, &c." p. 18, 



pi. XXV. figs. 88-91. 

 1878. Leieschara crustacea, Smitt, ** Recensio Bryozoarlum ad insulas 



Novaja Semlya, &c.," CEfvers. K. Vet.-Akad. Forhand. p. 20. 



1886. Schizoporella crustacea, Lorenz, Bryozoen von Jan Mayen, p. 5, 

 pi. vii. fig. 2. 



1887. Leieschara crustacea, Levinsen, Dijinphna-Togtets zool.-bot. Ud- 

 bytte, p. 317. 



1892. Myriozoon planum, Hincks, " Polyzoa of the St. Lawrence," 

 Ann. & Mrig. Nat. Hist. ser. 6, vol. ix. p. 157. 



1900. Schizojiorella crustacea, Waters," Bryozoa of Franz-Josef Land," 

 Linn. Soc. Journ., Zool. vol. xxviii. p. 64, pi. viii. figs. 11-13. 



1901. Myriozoon planum, Whiteaves, " Oat. Marine Invert, of Eastern 

 Canada" (Geol. Surv. Canada), Ottawa, p. 99. 



It will be seen that Smitt, who had first placed this species 

 and its allies in the genus Myriozoon, subsequently trans- 

 ferred them to Leieschara. Dawson^s description of Lepralia 

 plana was very inadequate ; but I have seen specimens named 

 by him, and there can be no doubt as to the species which 

 he intended. 



Varanger Fiord, 120-150 fathoms. I also have specimens 

 from Parry's Island, Spitsbergen, and Beeren Eiland Banks, 

 15-40 fathoms {F. A. Smitt) ; and Greenland, ' Valorous,^ 

 1875. 



The Genus Eschara. 



In 1724 John Ray described, in his ' Synopsis methodica 

 stirpium Brittanicarum,^ p. '61, Eschara refiformis from the 

 south-east coast. He thought that it was vegetable, yet tlie 

 few words of description make it clear that he meant the 

 species described by Pallas. Ray, as pre-Linnean, cannot be 

 the authority for the specific name. 



Ellis ('JNat. Hist. Corallines,' 1745, p. 71, pi. xxx. figs, a, 

 A, B, C) describes and figuics our " Eschara foliacea," those 



