| Species | No. of tentacles | Serot. perikarya | Abfrontal nerve | Peculiarities |
---|---|---|---|---|---|
Ctenostomata | Â | Â | Â | Â | Â |
 Alcyonidioidea | Alcyonidium sp. | 15 | 13 | +/− |  |
 | Flustrellidra hispida | 27 | 25 | + | tentacle sheath ring |
 Arachnidioidea | Nolella dilatata | 17 | 17 | – | no ‘gap’ |
 Paludicelloidea | Paludicella articulata | 18 | 16 | – | highly complex |
 Victorelloidea | Victorella pavida | 8 | 6 | – |  |
 Walkerioidea | Walkeria uva | 8 | 6 | – |  |
 Vesicularoidea | Zoobotryon verticillatum | 8 | 6 | – |  |
 Vesicularoidea | Amathia semiconvoluta | 8 | 6 | – |  |
Cheilostomata | Â | Â | Â | Â | Â |
 Inovicellata | Aetea anguina | 11 | 9 | +/− |  |
 Malacostega | Membranipora membranacea | 17 | 15 | – |  |
 Malacostega | Electra pilosa | 13 | 11 | – |  |
 Buguloidea | Bugula purpurotincta | 15 | 13 | – |  |
 Buguloidea | Bicellariella ciliata | 15 | 13 | + | visc. nerve, cardiac nerve ring |
 | Scrupocellaria scruposa | 12 | 10 | + |  |
 Cellarioidea | Cellaria fistulosa | 14 | 12 | – | pore-complex |
 Hippothoomorpha | Chorizopora brongniartii | 12 | 10 | – |  |
 Cribrimorpha | Cribrilina annulata | 13 | 11 | – | visc. nerve, cardiac nerve ring |
 Lepraliomorpha | Schizoporella sp. | 13 | 11 | – |  |
 Lepraliomorpha | Cryptosula pallasiana | 16 | 14 | + |  |
 Lepraliomorpha | Lanceopora sp. | 17 | 15 | – |  |
 Umbonulomorpha | Reptadeonella violacea | 15 | 13 | – |  |