Fig. 3 in Morphology, microanatomy and sequence data of Sclerolinum contortum (Siboglindae, Annelida) of the Gulf of Mexico

Fig. 3 General morphology (LM). a Anterior end of the worm within the transparent and collapsed anterior part of the tube. b Forepart with dorsal furrow and frenulum consisting of cuticular plaques arranged in a row. c Frenulum of other specimen consisting of scattered cuticular