Polyzoa from KergueJens Island. 117 



which, however, are more or less erect, are attached in a linear 

 series to a connecting- tube, and are without avicuJaria. In 

 D. Mrtissima, Heller, which otherwise much resembles the 

 present species, there are no avicidaria^ and the back of the 

 cells is set with numerous forked spines or seta3. 



Fam. Membraniporidae. 



Genus Lepealia, Johnst, 



§ Inabmatje. 



Lepralia Eatonij n. sp. 



Cells broadly oval, distinct ; mouth semicircular, lower lip 

 straight, notched in the middle ; four to six erect oral spines. 

 Surface of cells in interior of zoarium smooth, entire or obscurely 

 pitted round the border, sometimes umbonate ; in the marginal 

 cells a row of distinct pores exists round the border ; ovicell 

 prominent, subglobose, with faint radiating lines in front and 

 a row of small pores round the base. 



Hah. Swain's Bay, Kerguelen's Island (Eaton). 



Lepralia liyalina^ Linn. 



In addition to the varieties of this protean species given in 

 the British-Museum Catalogue, the present collection contains 

 three which are doubtfully referred to it. 



Var. e. conferta (n. var.), characterized by the crowded and 

 compressed growth of the cells and ovicells in the central 

 portion of the patch, giving the zoarium the aspect of a Celle- 

 pora^ and by the wide and patulous mouth, more especially of 

 the marginal cells. 



Var. ^. Bougainvillei, which appears to be identical with 

 the form iigured by M. d'Orbigny, whose name I have there- 

 fore retained. 



Var. 7] (n. var.), characterized by the smaller than normal 

 size of the cells, and by their surface being thickly studded 

 with short spines, as is also that of the ovicells. 



Suborder Cyclostomata. 



Fam.. Crisiadae, Bk. 



Genus Crisia, Lamouroux. 



Crista kerguelensis^ n. sp. 



Zoooecia 3-5 in each internode ; branches arising from the 

 second or third, elongated, curved abruptly forwards ; mouth 

 slightly expanded ; peristome thin, membranous : oooecia 



