ON RECENT POLYZOA. 587 
be rasr il 
Sub-order IT. Cyclostomata, Busk 
= Tubuliporina, Milne-Edw., Johnst., Hagenow, &c. 
_ = Auloporina, Myrioporina (part), Ehrnberg 
= Cenoporina (part), Bronn 
= Centrifuginea (part), D’ Orbigny 
Group 1. Radicellata, D’ Orbigny. 
Zoarium erect, articulated, attached by radival tubes. 
Family I. Crisiide, Busk. 
‘Crag Polyzoa,’ p. 92, 1859; Hincks, ‘ Brit. Mar. Polyzoa’ ; 
Busk, ‘ Cyclostomata, ‘ Brit. Mus, Cat.’ pl. iii. 
In Professor Smitt’s papers on the order Cyclostomata (‘ Scandinavian 
Bryozoa’), the family Crisiide is divided into two genera, Crisidia, Milne- 
Edwards, and Crisia, Lamouroux; and Mr. Busk follows this arrangement 
in the third part of his ‘ British Museam Catalogue’ (Cyclostomata, 
1875). Mr. Hincks in his ‘ British Marine Polyzoa,’ and in his subsequent 
ritings, disallows the genus Crisidia, Milne-EKdwards, and I think wisely 
80. In his Cyclostomatous part of the ‘ Bay of N aples Bryozoa,’ pre- 
5 as to the publication of Mr. Hincks’s work (‘ Annals,’ April 1879), 
A. W. Waters also adopted this arrangement. Mr. Hincks, however, 
des the group into two series, a and /. 
Genus 1. Crisia, Lamz. (part) 
=Crisia, Fleming, Blainville, Milne-Edwards (part), Johnston, 
D’Orbigny, Busk, Hincks, Waters. 
Palcaria (part), Oken. 
_ Zocecia in a single series or in two alternate series (Hincks). Ocecia 
irregularly placed (Busk). 
1. Crisia cornuta, Linneus = Sertularia id., Linn. Sys. 1316 
= Falcaria id., Oken, Gray 
= Crisia setacea, Couch = (?) Crisidea id., Sars 
= Unicellaria cornuta, Blainv. 
Hincks, p. 419, pl. lvi. figs. 1-4; Busk, p. 3, pl. i. figs. 1-10. 
Localities: Widely distributed round our coast. 
, Geographical Distribution: Mediterranean; Bay of Naples (rare) ; 
Scandinavia; Finland; Greenland; coasts of France; Houston- Stewart 
Vhannel ; Virago Sound (common), Hincks. 
_ 2. Crisia cornuta, var. 3, geniculata Busk. Without spines 
=C. geniculata, Milne-Edw., Johnst., Sars 
= C. cornuta (var.), Smitt (sine cornibus) 
= Filicrisia geniculata, D’Orb. 
Localities : Both shores of the British Channel. 
Geogr. Distrib.: Roscoff ; Mediterranean ; Bahusia ; 
Norway. 
