Laubierpholoe Pettibone, 1992

Zhadan, Anna, Tzetlin, Alexander, Vortsepneva, Elena, Neretina, Tatiana & Chevaldonné, Pierre, 2023, New record and new species of Laubierpholoe Pettibone, 1992 (Annelida, Sigalionidae) from the soft bottom of submarine caves near Marseille (Mediterranean Sea) with discussion on phylogeny and ecology of the genus, European Journal of Taxonomy 875 (1), pp. 47-69 : 52

Genus Laubierpholoe Pettibone, 1992

Type species

Pholoe antipoda Hartman, 1967 .

Diagnosis (after Pettibone 1992), emended (changes in bold)

Body small, linear, with relatively few segments (up to 29). Elytra and elytrophores on segments 2, 4, 5, 7, continuing on alternate segments to 23, then on every segment to end of body. Dorsal tubercles on segments lacking elytra. Elytra delicate, with few short papillae on lateral border and on surface. Without dorsal cirri or branchiae. Prostomium and first or tentacular segment fused, ventrally forming anterior lip of mouth, without facial tubercle, with or without papillae. Prostomium rounded, bilobed; median antenna with ceratophore in anterior notch of prostomium; lateral antennae absent; with or without 2 pairs of eyes. Tentaculophores lateral to prostomium, achaetous, each with long dorsal and much shorter ventral tentacular cirrus or tentacular cirri of about same length; palps stout, very long, emerging ventral and lateral to tentaculophores, rugose. Second or buccal segment with first pair of large elytrophores and elytra, biramous parapodia, long ventral buccal cirri, and forming lateral and posterior lips of mouth. Muscular pharynx with 9 dorsal and 9 ventral border papillae and 2 pairs of jaws. Parapodia biramous; notopodial conical acicular lobe without subdistal bract; neuropodial conical acicular lobe without distal papillae. Notochaetae simple, slender, capillary, slightly curved and straight. Neurochaetae stouter than notochaetae, compound, falcigerous or spinigerous; shafts with or without distal spinules; blades capillary or falcate with unidentate or uni- and bidentate tips. Ventral cirri short, tapering, on all segments. Pygidium with pair of anal cirri. Development characterised by reduction of egg number and development of embryos and juveniles within elytra (elytral brooding).