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

9. Ficopomatus Southern, 1921
(Fig. 16)
Type-species: Ficopomatus macrodon Southern, 1921
Number of species: 5
Tube white (exceptionally orange), opaque, circular to triangular in cross-section, keels, peristomes, and
tabulae may be present. Granular overlay of the tube absent. Operculum a bulbous fleshly ampulla, uncovered
or covered with either a chitinous, non-calcified endplate or with numerous chitinous spines in the distal
tissue. Peduncle smooth, sub-triangular, with dorsal groove, without distal wings, gradually merging into the
opercular ampulla; inserted just below left branchial lobe, near medial line. Pseudoperculum absent. Radioles
arranged in semi-circles, up to 11 per lobe, not united by inter-radiolar membrane. Branchial eyes, stylodes,
and mouth palps absent. 7 thoracic chaetigerous segments. Collar non-lobed, with entire edge, tonguelets
absent. Thoracic membranes long, forming ventral apron across anterior abdominal segments. Dorsal edges of
thoracic membranes fused in F. uschakovi. Collar chaetae coarsely serrated (Fig. 16A) and limbate. Apomatus
FIGURE 16. SEM micrographs of chaetae in Ficopomatus enigmaticus. The Netherlands, Vlissingen, Keersluisbrug
near power station, legit H.A. ten Hove, ZMA V.Pol. 3069. A—details of Ficopomatus collar chaetae, B—uncini of 4 th
thoracic chaetiger, C—posterior abdominal chaeta with double row of teeth (hollow tip), D—detail of peg, uncini of 4 th
thoracic chaetiger.
TAXONOMY OF SERPULIDS: STATE OF AFFAIRS
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