HIPPOTIIOA FLAGELLUM. 293 



and is fittingly associated with the name of one who has 

 done so much to illustrate both the recent and fossil fauna 

 of his adopted country. 



H. expansa is a northern species, and is said to be much 

 more abundant in the Arctic seas than the kindred H. di- 

 varicata. 



HlPPOTHOA FLAGELLUM, MaUZOui. 



Plate XLIV. figs. 5-7. 



HlPPOTHOA FLAGELLUM, Mcmzoni, Bryoz. foss. Ital. 4th Contrib. 6, pi. i. 

 fig. 4 (Sitzb. d. k. Atad. d. Wissensch. Bd. ki. 1. Abtli. 

 Marz-Heft, 1870) ; id. Suppl. alia Faun. d. Bryoz. Medit, 

 1st Contrib. 3, pi. i. fig. 5 {I.e. Bd. Ixiii. 1. Abth. Feb.- 

 Heft, 1871): Hincks, Ann. N. H. Sept. 1877, 218. 



Zooecia ovate, smooth, not carinated, slightly elevated 

 towards the oral extremity, not much produced below, 

 connected by a very slender thread, usually much longer 

 than the cell ; orifice subovate, elongate, broader above 

 than below, with a slightly thickened peristome. 

 Ooecia small, globose, smooth, borne on a partially 

 developed cell, which is generally attached to the side 

 of a normal zooecium by a very short fibre. 



Habitat. On shells chiefly. 



Localities. H. flagellum seems to be common and 

 widely distributed ; probably it is as common as H. diva- 

 ricata, with which it has hitherto been confounded. I am 

 only able to give the localities which have come under my 

 own notice. Guernsey ; Cornwall, on stones from deep 

 water ; South Devon ; Hastings ; Isle of Man ; coast of 

 Antrim (amongst Mr. Hyndman's dredgings) : ibid., 47 

 fathoms, and 6.2-72 fathoms, oflF the Maiden Lighthouses 

 (amongst Mr. Swanston's dredgings) : Birterbuy Bay ; 

 Shetland, on Ditrupa, bearing Retepora Beaniana (T. H.). 



