XXXll 
INTE0DT7CTI0N. 
with, and divided the rest into two groups — the Metopoporina, 
including the Ceidea and Eleidae, which, in spite of their trumpet- 
shaped zooecia and their contracted mouths giving them some 
resemblance to the Cheilostomata, he wisely left in the Cyclo- 
stomata. The remainder of the Cyclostomata Marsson grouped 
as the Solenoporina, characterized by the aperture occupying the 
whole end of the zooecium, and with the distal ends of the zooecia 
only slightly or not at all separated. This second suborder 
includes the great majority of Cyclostomata, and he distributed 
them among six families. 
1. Diastoporidea, ranging from Stomatopora to Diastopora, with 
the addition of three dissimilar genera, viz., Cryptoglena, which has 
the moniliform walls and the difference between the proximal 
and distal ends of the zooecia so common in the Trepostomata ; 
Cavarinella, a hollow-stemmed ally of Sparsicavea ; and Cavaria^ 
a Petaloporid. 
2. Entalophoridea, represented by nine genera ; he included 
Sparsicavea, and also Heteropora, as he used that name as a synonym 
of Petalopora. 
3. Idmonidea — with thirteen genera — is essentially the same as 
Busk’s family, as it includes Crisina (i.e. Idmonea auctt.) and 
Hornera, with the addition of Reticulipora — using that genus for 
Retecrisina, and not for the very dissimilar type species, which 
is Jurassic. 
4. Osculiporidea — for OscuUpora of d’Orhigny and Resmepora, 
Lonsd. 
5. Badioporidea — for seven genera, including a natural series, 
Liscocavea, Romopora, and Radiopora, hut united with the fasciculate 
genera Lopholepis and Riscocytis and the Theonid Phyllofrancia. 
6. Cerioporidea — Ceriopora and the quite distinct Riscosparsa. 
These families, it will he seen, are not very satisfactory groupings, 
but each of them contains a nucleus of allied forms with others of 
very different structures, which are well shown in Marsson’s 
excellent sections and drawings. 
In 1887 Pergens & Meunier described the. Banian Bryozoa of 
Faxoe,^ including thirty-eight species and twenty genera of 
^ E. Pergens & A. Meunier. “La Panne des Bryozoaires garumniens de 
Faxe” : Ann. Soc. malac. Belgique, vol. xxi., Mem. pp. 187-242, pis. ix-xiii. 
