Fig. 4
From: Three new species of Pruvotinidae (Mollusca: Solenogastres) from Antarctica and NW Spain
Cross sections of P. artabra n. sp. a atrium with sensitive papillae; b groove between atrium and mouth openings; c mouth opening; d section through the anterior region of the pharynx, showing the cerebral ganglion and the beginning of the dorsopharyngeal papilla gland; e opening of the dorsopharyngeal papilla gland into the pharynx; f–g detail of the radula teeth and the ventrolateral foregut glandular organs; h section through junction of spawning ducts; i detail of the unpaired spawning duct, seminal receptacles and suprarectal commissure; j anterior region of pallial cavity. ag anterior ganglia, ap atrial papillae, at atrium, cg cerebral ganglion, dc anterodorsal midgut caecum, dg dorsopharyngeal papilla gland, dp dorsoanterior pouch of the pallial cavity, dso dorsoterminal sense organ, he heart, mg midgut, mo mouth, pc pericardium, pd pericardioduct, ph pharynx, psd paired spawning duct, ra radula, re rectum, sc suprarectal commissure, sr seminal receptacle, usd unpaired spawning duct, vfg ventrolateral foregut glandular organ, vp ventroanterior pouch of the pallial cavity