Fig. 6 in Morphology, microanatomy and sequence data of Sclerolinum contortum (Siboglindae, Annelida) of the Gulf of Mexico

Fig. 6 Semithin section series of anterior trunk region with only a few bacteriocytes embedded within a non-symbiotic mesenchyme (a-b) and posterior trunk region with massive bacteriocyte tissue (c-d). a Lateral pyriform glands opening into epidermal papillae devoid of cuticular plaques; dorsal blood vessel clogged by the intravasal body. b Ventral and dorsal blood vessel connecting to blood lacunae (arrowhead); epidermis with papilla bearing cuticular plaque (double arrowhead). c Posterior end of the trophosome showing bacteriocytes