Highlights: 00:17:53 Sponge 00:27:13 Octocoral - Paragorgia & demosponge - Inflatella pellicula? 00:34:36 Stalked sponge 00:45:42 White sponges 01:15:53 Antipatharian coral & subfossil cup corals 01:22:17 Subfossil reef 01:44:43 Hexactinellid sponge, sea fans & antipatharians 01:57:27 Octopus 02:09:52 Yellow stalked crinoids - Anachalypsicrinus nefertiti 02:11:31 Purple starfish 02:25:51 Sponges

Boulders, possibly basalt, are frequent initially before the appearance of a large cliff with sediment overlay. The cliff is species poor at base with small white sponges, stalked crinoids and fan corals. Moving up-face species become more abundant and diverse with a wide variety of sponge, chrysogorgiids, Anachalypsicrinus Nefertiti, Leiopathes sp., Bathypathes sp., Lepidisis sp., brisingids and Porania pulvillus. Large areas of fossilised cup corals are seen attached to the cliff. Species of note include a Hyalonema sponge.

VIDEO A STARTS [00:00:00]/03:21. Rippled sand/gravel/pebble/cobble sediments on moderate upslope where ROV samples two pushcores. [00:09:00] Large boulder with several species of epifauna, including Bathypathes sp., Chrysogorgiidae sp.1 OTU1008 and glass sponges OTU650. [00:14:00] Mosaic sediment (sand and bedrock). [00:18:00] From this point, the bedrock is covered in sub-fossil Caryophyllia sp. OTU6. [00:20:00] ROV is climbing a steep hill. Muddy sediment/pebble/cobbles with sparse epifauna including Ophiomusa lymani OTU551, small crabs (<10 cm wide) and sea urchins OTU1129. [00:25:00] boulders/cobble/pebble/mud on very steep slope. Paragorgia, anemones and encrusting sponges on hard substrate. [00:41:00] N. B. black and white coral framework, completely intact, lying on sea floor between boulders. [04:03:00] Steep vertical bedrock with sub-fossil solitary scleractinians and hanging Paragorgia individuals. [00:47:00] ROV reaches the vertical bedrock summit and hovers for imagery on sub-fossil scleractinians and sponges. [00:49:00] ROV descends on the ground. Here mosaic substrata including mud/cobbles/bedrock with sparse epifauna, mainly Brisingidae and Crinoidea sp.1 OTU131 on hard substrata. [00:55:00] ROV is climbing up a steep slope, mainly bedrock/cobbles/mud. Crinoidea sp.1 on hard substrate. [00:58:00] ROV stops for imagery of two species of sponges. [01:04:00] ROV reaches the top of the steep slope and now another steep ground starts. Mosaic sediment of coral rubble/cobble/boulders. [01:05:00] ROV stops imagery of soft coral cf. Thouarella sp. OTU1086. [01:16:00] ROV stops for imagery of antipatharian. [01:19:00] now bedrock/mud. Black coral bed. [01:20:00] Now again steep bedrock with sub-fossil scleractinians. Chrysogorgiidae sp.1 OTU1008, Phakellia ventilabrum OTU202 and Anachalypsicrinus nefertiti OTU1031 co-dominate. [01:27:00]-[01:40:00] ROV stops for imagery and sampling of sub-fossil scleractinians. [01:40:00] ROV reaches the bedrock’s summit and moves slowly. Here bedrock/cobble/gravel/mud. No scleractinians. [01:43:00] Black coral rubble/gravel/mud. [01:44:00] ROV climbs a steep bedrock covered in sub-fossil scleractinians and frequent glass sponges OTU650 encountered. [01:48:00]-[01:49:00] ROV stops for imagery of Asconema sp. OTU650. [01:56:00] Very steep bedrock. Glass sponges and encrusted sponges dominate on hard substrata. [01:57:00] ROV stops for imagery of octopus. VIDEO A ENDS 05:22.

VIDEO B STARTS AT [02:01:00]/[05:24:00]. ROV moves from one steep bedrock to the next. Steep bedrock, encrusted sponges, A. nefertiti and Crinoidea sp.1 co-dominate. [02:05:00] ROV climbs steep bedrock. It reaches the top and still bedrock/boulder/cobbles with yellow encrusted sponges OTU58, P. ventilabrum and A. nefertiti. [02:08:00] Black coral rubble bed/pebbles. A. nefertiti and Asconema sp. OTU650 co-dominate. [02:15:00] Dense boulder/cobble/pebble fields with many epifauna including A. nefertiti, unknown stalked sponges and yellow sponges. [02:16:00]-[02:20:00] ROV stops for imagery and sampling of stalked sponge. Sampling failed. [02:42:00] Vision obscured/mud cloud. [02:44:00] Sponge aggregations OTU422. [02:50:00] Pebble/cobble fields with occasional boulders/larger rocks. A. nefertiti and glass sponges co-dominate. [02:52:00] Large boulders/cobbles with many epifauna on hard substrata, mainly A. nefertiti and glass sponges OTU422. VIDEO B ENDS [02:53:50]/06:17.