Zootaxa, Taxonomy of Serpulidae (Annelida ... - Magnolia Press

** According to Ippolitov (2007: 260), the name Glomerula Nielsen, 1931 should be “unavailable according to
ICZN 13.3)”. No further explanation is given by Ippolitov. If he is referring to Article 13 (iii), the full text of that is:
“Article 13. Names published after 1930.- (a) Names in general.- In addition to satisfying the provisions of Article 11, a
name published after 1930 must be either . . . (iii) proposed expressly as a replacement fro a pre-existing available
name”. Nielsen (1931: 85) defines the genus Glomerula in a key, and (p. 88) attributes a single species (Serpulites
gordialis von Schlotheim, 1820) to his genus. Nielsen, who did not give any explanation for his action at all, either
replaced the generic name Serpulites, a name explicitly unavailable according to “Article 20. Genus-group names ending
in –ites . . . given to fossils.”, or he simply placed the species gordialis in a new genus. Both ways we do not see conflict
with the Code, certainly not with 13 (iii), and in our opinion the name Glomerula is available, though not being a
serpulid.
Key to serpulid genera (described before 2008)
Although we have included the most obvious exceptions to the generic diagnoses with a double, even
sometimes treble pathway (e.g., Hyalopomatus (in part)), it is impossible to provide for every exception. For
instance, juveniles may show fewer thoracic segments than adults, while the adult number of segments has
been used in this key. The genera Pomatoceros and Spirobranchus occasionally show specimens without
collar chaetae, which then would key out with Pomatoleios. Specimens with two minute pseudopercula
instead of one pseudoperculum and a full grown operculum have been reported for all genera of the Serpulaclade.
A generic name found with this (any) key always should be checked carefully against its diagnosis.
Spirorbins have been included as category only.
1 Body symmetrical ..................................................................................................................................................... 2
- Body asymmetrical ................................................................................................................................................. 49
2 (1) Operculum present.................................................................................................................................................... 3
- Operculum absent .................................................................................................................................................. 40
3 (2) Collar chaetae absent ............................................................................................................................................... 4
- Collar chaetae present ............................................................................................................................................. 8
4 (3) Opercular peduncle without wings ........................................................................................................................... 5
- Peduncle with wings ............................................................................................................................... Pomatoleios
5 (4) Tube free (see 30 as well), tusk-shaped, smooth, thoracic membranes short................................................ Ditrupa
- Tube otherwise, mostly attached to the substrate ..................................................................................................... 6
6 (5) Operculum inverse conical, with brown(ish) endplate lacking spines ..................................................................... 7
- Operculum pear-shaped, laterally compressed, and if bearing chitinous plate at all, than with multiple spines ......
................................................................................................................................................................... Rhodopsis
7 (6) Tube (semi) transparent, apron present, collar region with reniform band of reddish ocelli ..................Placostegus
- Tube white opaque, apron absent.............................................................................................................. Marifugia
8 (3) Opercular peduncle with well developed membranous distal wings........................................................................ 9
- Opercular peduncle without well developed distal wings ...................................................................................... 12
9 (8) Collar chaetae few, fine and capillary..................................................................................................................... 10
- Collar chaetae numerous, Spirobranchus-type ...................................................................................................... 11
10 (9) Operculum with calcareous endplate, sometimes with non-movable spines........................................ Pomatoceros
- Operculum with elaborate calcareous movable spines ............................................................................. Galeolaria
11 (9) Operculum with calcareous endplate, sometimes with non-movable spines.......................................Spirobranchus
- Operculum with chitinous column bearing several serrated disks .......................................................Pomatostegus
12 (8) Pseudoperculum (rudimentary operculum) present................................................................................................ 13
- Pseudoperculum (rudimentary operculum) absent ................................................................................................ 17
13 (12) Collar chaetae simple, peduncle with distal latero-dorsal winglets, opercular ampulla slightly chitinized distally.
.................................................................................................................................. Neovermilia globula (in part)
- Collar chaetae simple, peduncle without winglets, opercular ampulla with brown horny distal cap ........................
................................................................................................................................Vermiliopsis (in part, striaticeps)
- Collar chaetae simple and fin-and-blade-type, one to six vesicular opercula ......... Protis (in part, polyoperculata)
- Collar chaetae simple and bayonet-type ................................................................................................................. 14
TAXONOMY OF SERPULIDS: STATE OF AFFAIRS
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