| Annelida | Polychaeta | Sedentaria |
| Siboglinidae | Spirobrachia | sp. 2 "small" |
| Genus | Species |
BI-2024-11, AT50-24, #MethaneFootprints
many
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Dive: AD5274. Verbatim event: Biobox insert 7. Field identification by Greg Rouse: Spirobrachia 2 or 3?. Ethanol: some. Other: male and female fixed for TEM; material in OsO4 for SEM; material in liquid nitrogen. Photos, Leica MZ12.5 + Canon EOS M6: 4834-4846 x0.8, 4847-4853 x1.6, 4854 x1.25 ovary, 4855-4856 x2 trophosome girdle, 4908-4917 x2.5 spermatophore, 4918-4924 x5, 4926-4929 x2.5 male, 4930 x? female spawning, 4946-4948 x6.3, 5162-5165 x2, 5166-5172 x6.3.
AD5274 | BB7
Shumagin
54.3007° N
157.1954° W
4819.8 m
May 27, 2024
HOV Alvin
R/V Atlantis
Tina Treude | Kendra Lee
Greg Rouse
EtOH 95%
EtOH 50%
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AT50-24. Sample ID: AD5274-BB7. Event log entry: bushy frenulates at Seuss site. Sample type: Manipulator. Altitude: 4.09 m. Heading: 210.36. Activity level: Active.