Sepiolida
Michael Vecchione and Richard E. Young
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close boxIntroduction
Members of the Sepiolida are short (mostly 2-8 cm ML), broad cephalopods with a rounded posterior mantle.
Diagnosis
A sepioid ...
- with a short, rounded body.
- without a cuttlebone.
Characteristics
- Head
- Eye pore outside of ventral eyelid.
image infoFigure. Lateral view of head of Rossia sp., 19 mm ML, female, preserved. Arrow points to eye pore.
- Mantle
- Dorsal margin fused to or free from head.
- Ventral mantle adductor present.
- Fins
- Fins broad (length ca. less than two times, usually equal to, individual fin width).
- Attachment of posterior fin-lobes broadly separated.
- Shell
- Shell a thin or rudimentary gladius or absent.
image infoFigure. Ventral view of mantle cavity of Rossia sp., preserved. Arrow points to the cut surface of the ventral mantle adductor where it had attached to the ventral mantle wall. Anteriorly the adductor muscles pass to either side of the intestine. Photograph by R. Young.
Title Illustrations
| Scientific Name | Sepioloidea lineolata, Iridoteuthis iris |
|---|---|
| Copyright | © 2004 Mark Noman, Thomas Burch |
About This Page
National Marine Fisheries Service
Systematics Laboratory
National Museum of Natural History
Washington, D. C. 20560
USA
Richard E. Young
Dept of Oceanography
University of Hawaii
Honolulu, Hawaii 96822
USA
Page copyright © 2004 and Richard E. Young
- First online 21 August 2004
Citing this page:
Vecchione, Michael and Young, Richard E. 2004. Sepiolida . Version 21 August 2004 (under construction). http://tolweb.org/Sepiolida/23872/2004.08.21 in The Tree of Life Web Project, http://tolweb.org/
