- Arms
- Arms III - suckers proximal to hooks.
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Figure. Ventral view of left arm III from a female P. giardi (stained with methylene blue). ©
- Arms IV
- Male right arm IV and hectocotylus
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Figure. Arms IV for male P. giardi. Left/Top - Medial view showing hectocotylus plate and teeth. Right/Bottom - Lateral view showing hectocotylus lobes, and 2 hooks on right arm IV. Photographs by R. Young, A. Lindgren.
- Female arms IV lack suckers or hooks
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Figure. Side view of an arm IV from a female P. giardi. ©
- Arms III - suckers proximal to hooks.
- Tentacular clubs - with 4 series of regularly sized suckers.Click on an image to view larger version & data in a new window
Figure. Tentacular club for P. giardi. Sucker rows across manus are evenly sized (some suckers are missing). Also note tentacle locking apparatus and associated pads.©
- Photophores
- Eye with 10 large and 5 minute photophoresClick on an image to view larger version & data in a new window
Figure. Ventral view of a damaged eye of P. giardi, showing the 5 minute eye photophores (see arrows) ©
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ToL notes provide brief accounts of characteristics, short summaries, commentaries, media files, taxonomic information, or identification tools for a given group of organisms.
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