21 Trivia arctica
1: respiratory siphon.
2: cephalic tentacle.
3: ventral mid-line where opening to pouch containing feeding proboscis is located.
4: bilaminate anterior edge of foot; contains anterior pedal gland with mucus to lubricate travel.
5: yellow opening to pouch containing female's ventral pedal gland.
6: opening to pouch containing female's ventral pedal gland; foot folded up at right-angle in front of gland to position it on a leading edge for action.
7: ventral pedal gland protruded; about to shape egg capsule (8) deposited in hole bitten into compound ascidian prey, Diplosoma listerianum.
For further detail see 25Ta flic.kr/p/Cfu1R4 and 21.1Ta flic.kr/p/234LSrM
Left and centre: Height (longest shell-dimension) 9.4mm. Menai Strait, Wales. March 2014.
Right: 5m depth, Zierikzee, Netherlands, March 2017, © S. Verheyen.
Full SPECIES DESCRIPTION: flic.kr/p/Cfnfpb
Albums of OTHER SPECIES:
21 Trivia arctica
1: respiratory siphon.
2: cephalic tentacle.
3: ventral mid-line where opening to pouch containing feeding proboscis is located.
4: bilaminate anterior edge of foot; contains anterior pedal gland with mucus to lubricate travel.
5: yellow opening to pouch containing female's ventral pedal gland.
6: opening to pouch containing female's ventral pedal gland; foot folded up at right-angle in front of gland to position it on a leading edge for action.
7: ventral pedal gland protruded; about to shape egg capsule (8) deposited in hole bitten into compound ascidian prey, Diplosoma listerianum.
For further detail see 25Ta flic.kr/p/Cfu1R4 and 21.1Ta flic.kr/p/234LSrM
Left and centre: Height (longest shell-dimension) 9.4mm. Menai Strait, Wales. March 2014.
Right: 5m depth, Zierikzee, Netherlands, March 2017, © S. Verheyen.
Full SPECIES DESCRIPTION: flic.kr/p/Cfnfpb
Albums of OTHER SPECIES: