Sigambra Müller, 1858

Plathong, Jintana, Plathong, Sakanan, Klangnurak, Wanlada & Dean, Harlan K., 2024, Two new species of Sigambra (Annelida, Pilargidae) from the Andaman coast and the Gulf of Thailand, Zootaxa 5555 (1), pp. 1-23 : 6-7

Genus Sigambra Müller, 1858

Diagnosis (after Glasby & Salazar-Vallejo 2022). Pilargids with body depressed, integument smooth to papillated, papillae restricted to anterior segments, arranged in a single transverse row per segment. Lateral and median cirriform antennae present. Palps unfused, biarticulate, palpostyles directed ventrally. Paired ventrolateral palpal papillae present. Pharynx with distal terminal papillae as well as proximal papillae. Two pairs of tentacular cirri. Dorsal and ventral cirri present, ventral cirri may be absent on chaetiger 2. Notochaetae include hooks and sometimes shorter spines or capillaries; dorsal hooks present along the body, beginning in anterior or median regions. Neurochaetae limbate capillaries of varying size.

trees and calculate sequence divergences.