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

mouth palp: filiform projections of the dorsal lip of the Sabellida mouth.
neurochaeta: chaeta of a neuropodium.
neuropodium (pl. neuropodia): ventral branch or ramus of a parapodium.
notochaeta: chaeta of a notopodium.
notopodium (pl. notopodia): dorsal branch or ramus of a parapodium.
ocellar clusters: loose groupings of approximately 2–20 ocelli, generally with as many lenses.
ocellus (pl. ocelli): single eyespot with (or without a single lens).
operculum (pl. opercula): tip of modified radiole used to plug the tube when the worm is retracted.
opercular plate: terminal reinforcement of opercular ampulla, often chitinous or calcareous.
opercular stalk, see preferred term: peduncle.
palmar or palmate membrane, see preferred term: interradiolar membrane.
parapodium (pl. parapodia): fleshy lateral projection from a body segment which usually bears chaetae.
pectinate: comb-like; with series of projections like the teeth of a comb. In serpulids an arrangement of
radioles.
peduncle: modified radiole bearing the operculum.
peduncular wings: collective term for all flattened lateral wing-like appendages of peduncle.
peg: wedge shaped, not sharply pointed anterior tooth of uncinus
peristome: collar-like widening of tube (former tube-mouth).
peristomium: pre-segmental region of the body surrounding the mouth (alimentary canal).
pinnules: small paired side branches of the radioles, giving each radiole a feathery appearance.
primary tooth, see fang.
prostomium: anteriormost, presegmental region of body, bearing the branchial radioles and sometimes eyes.
pseudoperculum (pl. pseudopercula) [variant, but not preferred spelling pseudo-operculum]: modified
radiole (generally the second dorsal one), generally without pinnules; can develop into a new functional
operculum when the functional operculum is lost.
pygidium: post-segmental terminal body-part surrounding the anus.
radiolar crown, see preferred term: branchial crown.
radiolar web or webbing, see preferred term: interradiolar membrane.
radioles: pinnulate filaments of branchiae, used for respiration and feeding.
radius (pl. radii): radial projection of the funnel (Serpula-clade).
rasp-shaped uncinus: uncinus with two (biseriate) or more rows of teeth (multiseriate), see dental formula.
reniform: kidney-shaped.
rudimentary operculum, see preferred term: pseudoperculum.
saw-shaped uncinus: uncinus with only one row of teeth (uniseriate), see dental formula.
segment: one of the serially repeated units comprising the trunk; often separated internally by septa or
dissepiments.
seta (pl. setae), see: chaeta, term preferentially adopted by the 1 st International Polychaete Conference in
Australia.
shaft: proximal part of a chaeta.
sickle-chaeta: a recurved abdominal chaeta with tiny dentition on the inside of the curve. N.B. used in
spirorbin literature for both thoracic Apomatus chaetae and abdominal sickle-chaetae
spinule: each of the tubercular or tooth-like projections of a spine in the verticil of the genus Hydroides. By
their position relative to the axis, spinules may be internal, lateral, or external. By their position along the
spine they may be proximal, medial, or distal.
Spirobranchus-type chaeta: bayonet-like collar chaeta with a proximal boss consisting of very numerous
tiny hair-like spines.
stylode: finger-like outward projection of radioles in some Sabellida.
tabulae: transverse internal tube elements partitioning off the oldest parts of the tube, generally as response to
tube damage.
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