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Fig. 6 | Frontiers in Zoology

Fig. 6

From: Classical and computed tomographic anatomical analyses in a not-so-cryptic Alviniconcha species complex from hydrothermal vents in the SW Pacific

Fig. 6

2D (flattened) visualisation of the Alviniconcha alimentary system based on CT. Images are from the CT-scanned A. kojimai specimen. Pictured: a overview of the alimentary system in Alviniconcha (excluding digestive glands), displaying the route of ingested material on its passage between the mouth (large pink arrow) and the end of the rectum (Re); b enlarged view of buccal cavity with jaws (J) and radula (R), nested in the curved odontophore (Od), with associated salivary ducts (SD) terminating in salivary glands (SG) left of the oesophagus (Oe) and blind oesophageal pouches (OeP); c enlarged inner-side view of visceral mass (VM) showing the relative positions of the stomach (St) and associated anterior and posterior digestive glands (ADD, PDD), lower posterior oesophagus (POe), intestine (In) and rectum. is upper-to-mid-posterior oesophageal junction; is mid-to-lower posterior oesophageal junction. Figure is of flattened 2D renderings with exact scales. Additional abbreviations: AOe Anterior oesophagus; BC Buccal cavity; DD digestive diverticula; MOe Mid-oesophagus; mPOe Mid-posterior oesophagus; Ne Nephridium; NR Oesophageal nerve ring; uPOe Upper posterior oesophagus

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