OF MADEIKA AND NEIGHBOUEING ISLANDS. 309 



(lyrula) is seen in the throat exactly as in the next variety. What Waters 

 has named P. punctigera has a freely punctured ooecium and a denticle within 

 the throat, such are examples in my collection from Wick (Peacfi) and from 

 Madeira. All the sixteen specimens I possess from the last locality are what 

 Waters names P. punctigera. But among them is one which presents an 

 entirely new and unexpected feature, for some of its zooecia have a nearly 

 round avicularium developed on the lower lip (fig. 9). In British examples 

 there seems to be always a tendency of the zooecia to run out into straight 

 lines, but this is not the case in those from Madeira. A marked counterpart 

 of these two modes of propagation occurs in ScMzoporella Barleei and its 

 variety in chain-like development, var. Alderi. 



Phylactella collaris {Norman). 



One specimen and some fragments from deep water. 



Lagenipora Costazei [Audouin). 



1868. Cellepora Hassalii, var. a, Busk, Quart. Journ. Micr. Sci. vol. vi. p. 263, pi. 20. 



fig. 6. 

 1899. Lagenopora Costazei, Waters, Journ. Ro}'. Micr. See. p. 13. 

 1906. Leliythopora laciniosa, Calvet, Exped. Sci. ' Travailleur ' et ' Talisman,' Bryozoaires, 



p. 443, pi. 29, figs. 13, 14. 



This is a very variable species ; which at Madeira is common on stones 

 between tide-marks, or forms little clusters on the fronds of Corallinam rock- 

 pools and shallow waters, or wraps itself in little rolls round such things as 

 the stems of Antipathes. Bosk's figure of what he calls " var. a " illustrates 

 fairly the tide-mark form. The processes which are surmounted by avicularia 

 vary greatly both in size and elevation. Senhor De Noronha has sent it to 

 me from Porto Santo and the Salvages. 



Lagenipora lucida (Jlincks). H., W. 



1899. Laffenojjoj'ci lucida, Waters, " Bryozoa from Madeira," Journ. Roy. Micr. Soc. p. 13 

 pi. 3. figs. 25-30. 



On shell from deep water. 



Mr. Waters, in the paper above referred to, gives what he considers to be 

 the full synonymy of the species. 



Lagenipora ignota, n. sp. (PI. 42. figs. 10-13.) 



Hising in papilliform, round branches to a height of about half an inch 

 (fig. 10). Zooecia generally suberect, so that the oral opening looks directly 

 upwards, and as much of the zooecium is behind it as there is in front ; 



