76 Ilev. T. Hincks's Contributions towards 



Lepralia bicristata, id. (Cape Horn), L. diadema, Macgilli- 

 vray, and L. ceramia, id. (Australia) ; Porina serrulata, Smitt, 

 and P. subsulcata, id. (Florida) ; and Lepralia 2^ a gi°P ora i 

 Busk (Florida and the Crag), which seems to be a mere 

 variety of M. violacea. 



Family Myriozoidte (part), Smitt. 



SCHIZOPORELLA, Hincks. 



Schizoporella sanguinea, Norman. 



This species, which has occurred on our south-western coasts, 

 attains a remarkable size and beauty in the only Madeiran 

 example which I have seen. The zooecia are perfectly white and 

 porcellaneous, the walls of great thickness and pierced by 

 circular, shaft-like pores. The orifice is large ; and its 

 peculiar structure is admirably displayed. The avicularia are 

 much more numerous than I have seen them before, and are 

 of two kinds ; they are placed on each side of the orifice : — one 

 raised, with an acute or subacute mandible, usually set trans- 

 versely almost in a line with the lower lip ; the other oval, 

 generally depressed or subimmersed, with a rounded mandible, 

 directed upwards, placed most commonly towards the upper 

 part of the orifice. The positions are not quite constant ; but 

 in a large proportion of cases they are as I have described 

 them. The oval avicularium has not, I believe, been noticed 

 before in this species. 



Range of Distribution. Britain, south-west ; Mediterra- 

 nean ; Madeira ; Florida, deep water. 



Schizoporella biaperta, Michelin. 



The range of this species also is extended to Madeira. A 

 study of Mr. Johnson's specimen shows that the small lateral 

 avicularium is often replaced by a large spatulate one, as in 

 the kindred S. armata, mihi. Usually the peristome is ele- 

 vated round the front and sides of the orifice ; and in this re- 

 spect also an approach is made to the last-named species. 

 There are about five marginal spines*. The surface of 

 the zooscia is rather coarsely granulous, whereas in the 

 British specimens which I have examined it is smooth and 

 polished. 



Range of Distribution. England (south-east) ; Guernsey ; 



* This character is omitted in the account of this species in my Hist, 

 of the Brit. Polyzoa (vol. i. p. 265), not having been noticed in any British 

 example. 



