| Cephalopoda Glossary | Cephalopod Digestive System Terminology |
Richard E. Young, Michael Vecchione and Katharina M. Mangold
| In Octopus (a representative incirrate octopod) note the large, external anterior salivary glands, the large, paired posterior salivary glands (poison glands), the crop diverticulum, the fused and compact digestive gland duct appendages, the loop in the intestine and the highly coiled caecum which lacks a caecal sac | In Vamproteuthis (the only member of the Vampyromorpha) note the large, external anterior salivary glands, the single, small posterior salivary gland, the distended crop, the digestive gland duct appendages that are similar to those of Octopus, the absence of anal flaps and the absence of a caecal sac. | In Abralia (a representative oegopsid squid) note the very small anterior salivary glands, the bilobed posterior salivary gland, the digestive gland duct appendages spread along the digestive gland duct and the presence of a caecal sac. | In Loligo (a representative myopsid squid) note the single posterior salivary gland, the partially embedded anterior salivary glands, the digestive gland divided in its posterior third allowing the esophagus to emerge ventrally and the very large caecal sac. | In Sepia (a representative sepioid) note that the anterior salivary glands are embedded within the buccal mass, the posterior salivary glands are paired, the digestive gland is paired, the intestine has a loop and a caecal sac is absent. |
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Figure. Drawings modified from Mangold and Young, 1998.
