178 REPORT—1883. 
Family Drasroporip2. 
Genus Diastopora. Genus Discoporella. 
Patinella. »  Defrancia. 
” 
b. CELLULIS INDISTINCTIS. 
Family CEeRrioporip2. 
Genus Stellipora. Genus Alveolaria. 
»  Fungella. 5» Spiropora. 
»,  Heteropora. », Heteroporella. 
»  Neuropora. 
Family THEonorpa. 
Genus Theonoa. Genus Lopholepis. 
»  Fascicularia. »,  Apseudesia.' 
Family FRonpirorip2. 
Genus Lrondipora. Genus Distichopora. 
»  Lruncatula. », Llethopora. 
To a large extent this synopsis has been accepted and followed by 
many leading naturalists in their arrangement of this group at least. 
Professor Reuss, in his various writings after the publication of the ‘Crag 
Polyzoa,’ adopted the arrangement with very slight modifications, and 
Dr. Manzoni followed Reuss, but Professor F. A. Roemer in his ‘ Poly- 
parien des Norddeutschen Tertiiir-Gebirges,’ * divides the group thus :— 
Bryozoa, Ehrbg. 
A. Cellulata, D’Ovb. = Cheilostomata, Busk., 
B. Tubuliporide, M.-Ed. = Cyclostomata, _,, 
C. Cerioporide, D’Orb. = Cyclostomata, ,, 
Many of the genera in this arrangement are those founded by 
D’Orbigny, some few are still retained in our scientific literature, four 
only are founded by Professor Roemer. 
a. CELLULATA. 
Genus Cycleschara, Roemer. Genus Discoescharites, Roemer. 
3 Lorelia. 5 
b. TUBULIPORIDA. 
Genus Hscharites. 
Tt must not be supposed, because I pass over several authors who 
have laboured upon the Polyzoa, that I ignore their work. Although I 
am pretty familiar with the various classifications which have been issued 
since the publication of the ‘ Brit. Mus. Cat.’ and the ‘ Crag Polyzoa,’ many 
of the modifications that have been suggested apply more particularly to 
the Cheilostomata than to the Cyclostomata. 
In the former suborder there are many points of superficial structure 
1 In my third Report this genus is spelt as in the Crag Polyzoa, Apsendesia ; I 
believe the proper spelling is with a wv as above 
2 Cassel, Verlag von Theodor Fischer, 186%. 
