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the email just above. Return to my MAIN DEEP-SEA PAGE for details on animal collection and for TOPIC CONTENTS (or use pull-down menu, right). |
Tunicates are in the subphylum Urochordata in the Chordate phylum, along with our group the Vertebrata. Commonly known as sea squirts, these animals have a notochord in their larval stage, just as human embryos do. They have two siphons--intake and outflow--for filter feeding on plankton.
Unknowns are various animals we cannot identify.
A. OREGON BATHYAL AND ABYSSAL: WORMS, UNKNOWNS,
TUNICATES (a) = abyssal plain (2300-2850m), (b) = bathyal zone--continental slope (1800-2000m) off Newport, Oregon; (mb) = Monterey Bay canyon, 2000-3000m. CLICK PICTURE to the right for composite picture of several unidentified/unknown animals--> |
LEFT: ECHIUROID worm* (mb, 2000m)
Thanks to Robert Carney for phylum ID |
LEFT: mysterious 8-armed animal; beak like an octopod, but no suckers on 'arms' |
B. METHANE SEEPS:
MICROBES, WORMS, UNKNOWNS |
.... | |||
Beggiatoa (and other
species of) bacteria in mats and filaments** --microbes using sulfide and methane (Eel River, Hydrate Ridge) |
Worm (new species?) living inside large carbonate rock formed by
microbial metabolism with methane
|
Seep worm
|
Acorn worms* (60x) found in mud near methane vent |
... | |||
Polychaete worms, including Dorvelleids, living off seep bacteria |
Cold-seep vestimentiferan(b) Lamellibrachia (lives off bacterial
symbionts that live off gases); see SEEPS/VENTS page for more on these and on
hydrothermal-vent worms
|
Eggsac of an unknown animal | Unidentified greenish bushy thing* |