OF MADEIRA AND NEIGHBOURING ISLANDS. 305 



Lepralia Pallasiana (Moll). H. 



I have called attention elsewhere to the fact that the name Lepralia cannot 

 possibly be retained in use in the sense in which Hincks employed it, because : 



1st. The genus as used by Hincks did not include a single species assigned 

 to it by Johnston in the first edition of his work when he instituted the 

 genus. 



2nd. Because Hincks included in his Lepralia^ EscJiara foliacea, and there- 

 fore all species congeneric with that species should have been embraced 

 under that old name. But until Dr. Levinsen^s forthcoming work is published 

 I think it best to leave things as they are. 



Senhor De Noronha,sent me Lepralia Pallasiana from Porto Santo growing 

 in free foliaceous form with zooecia on one face only. It exactly resembled 

 English specimens in its zooecia, and had no ooecia. 



Lepralia pertusa (Esper). H. 

 Unknown to me as Madeiran. 



Lepralia peristomata, Wate7^s. B., W. 

 1860. Lepralia Mang^ievilla, Busk, Quart. Journ. Micr. Sci. vol. viii. p. 284 pi 31 



1899. Lepralia feristomaia, Waters, " Bryozoa from Madeira," Journ. Eoy. Micr. Soe. 

 p. 10, pi. 3. fig. 20 (the operculum). 



Busk renamed L. MangneviUa, Busk {nee Savigny) in the ^ Challeno-er ' 

 Report, p. 159, Mucronella canalifera, but the species figured from the 

 ' Challenger ' Expedition appears to have no connection with that which 

 lives at Madeira. 



Lepralia peristomata is very common at Madeira, where I have met with 

 it in depths from 15 to 70 fathoms. 



Lepralia porcellana, Busk. B., W. (PI. 40. figs. 1. 2.) 



I860. Lep-alia porcellana, Busk, Quart. Journ. Micr. Sci. vol. viii p 283 pi 31 

 fig-.S. _ ' ' ' ' 



1873. Lepralia cleidostoma, Smitt, Floridan Bryoz. ii. p. 62, pi. 11. fio's. 217-219. 



1899. iepraZm cfe^■c?os^!owa, Waters, "Bryozoa from Madeira," Journ. Roy. Micr. Soc. 

 p. 10, pi. 3. fig. 16 (the operculum). 



Examination of the type of L. porcellana in the British Museum proves 

 it to be a somewhat overgrown specimen of Smitt's L. cleidostoma : the former 

 name is as appropriate to the porcelain-like look of the zooecia, as the latter 

 is to the very marked key-like oral opening. 



Not rare on stones between tide-marks. 



