Phyllodocida

Description: The polychaete Nereis gracilis (Hansen, 1878). This motile species is known exclusively from deep waters (range 930-2222 m) and has been recorded from the deeper parts of the Norwegian Sea, the Laptev Sea and probably the Sea of Beaufort. As with many deep-sea species very little is known about its biology. Nereis gracilis is likely to be an omnivorous scavenger with the specimen from Dalsnuten being approximately 15 cm long. Item Type: Image Title: Nereis gracilis Copyright: SERPENT project Species: Nereis gracilis Behaviour: Motile and likely to be an omnivorous scavenger Site: Atlantic -- Norwegian -- Dalsnuten Site Description: Seafloor Depth (m): 1452 Latitude: 66 deg 34' 33" N Longitude: 3 deg 32' 46" E Countries: Norway -- Norwegian Sector Habitat: Benthic Rig: Aker Barents Project Partners: Shell, Aker Drilling, Oceaneering ROV: Magnum 142 Deposited By: Miss Moira MacLean Deposited On: 23 February 2011

Coral Sea, Duration 22 seconds, Shot includes Opheodesoma serpentina (Feather-mouth sea cucumber)

South Pacific Ocean, Shot at night, Duration 8 seconds

Randers Fjord

Polynoe squamata.

Glycera meekelii, with pharynx everted.

1-Nereis cultrifera (Grub.), adulte.-- 2, individu jeune. -- 3, forme heteronereide, femelle de la meme espece. -- 4, forme heteronereide, male de la meme espece.

Magnified parapodium of Nereis dumerlii: dora, circ, dormal cirrus; vent, cire, ventral cirrus; s, setae.

Figure 1.Sphaerosyllis levantina sp. n. holotype, dorsal view

Figure 2.Namalycastis jaya sp. n.Holotype: a anterior end, dorsal view b anterior parapodium from chaetiger 8 c mid-body parapodium from chaetiger 80 d posterior parapodium from chaetiger 230 e sub-neuroacicular spiniger, chaetiger 10 f sub-neuroacicular spiniger, chaetiger 30 g sub-neuroacicular falciger, chaetiger 10 h sub-neuroacicular falciger, chaetiger 80 i supra-neuroacicular falciger, chaetiger 80 j supra-neuroacicular falciger, chaetiger 120 k pygidium, dorsal view.

Figure 2.Nicon orensanzi sp. n. Holotype. A Anterior end, dorsal view B Parapodium 10, anterior view C Parapodium 25, anterior view D Parapodium 60, anterior view E–G. Infracicular sesquigomph falcigers of parapodia 10, 25 and 50 respectively. Scale bars: A= 1 mm; B–D= 100 µ; E–G= 30µ.

Figure 1.Perinereis rookeri sp. n. A Anterior end, dorsal view B Proboscis, ventral view C–E Parapodia of chaetigers 11, 30 and 61, anterior view F Supracicular neuropodial heterogomph falciger, chaetiger 11 G Infracicular neuropodial heterogomph falciger, chaetiger 11 H Supracicular neuropodial heterogomph falciger, chaetiger 61 I Infracicular neuropodial heterogomph falciger, chaetiger 61. Measures: A–B = 1 mm; C–E = 250µ; F–I = 30µ.

Figure 1.Terminology and diagrammatic representation of A a Nereidinae parapodium (modified from Hutchings and Reid 1990) and B a Gymnonereidinae parapodium (modified from Hylleberg and Nateewathana 1988), anterior view.

Description: A phyllodocid polychaete moving across the surface of the sediment Item Type: Image Title: Polychaete Copyright: SERPENT Project Species: Ophiodromus flexuosus Behaviour: crawling over the sediment Site: Atlantic -- North Sea -- North Sea -- RagnarokkNorth Sea -- North Sea -- Ragnarokk Site Description: Seafloor Depth (m): 117 Latitude: 58 deg 53' 00" N Longitude: 2 deg 22' 20" E Countries: Norway -- Norwegian Sector Habitat: Benthic Rig: West Epsilon Project Partners: StatoilHydro, Oceaneering, Seadrill Ltd. ROV: Magnum (work class) Deposited By: Dr Andrew Gates Deposited On: 15 April 2008

Asterophilia carlae is not the primary subject of the video clip; the primary subject is Opheodesoma serpentina (Feather-mouth sea cucumber). Coral Sea, Duration 27 seconds

South Pacific Ocean, Duration 12 seconds

Randers Fjord

Nephthys ingens. Anterior part of body and extended proboscis; ventral view.

Nereis pelaglos. 1, male; 2, female.

Figure 2.Sphaerosyllis levantina sp. n. SEM images of a anterior end and midbody, dorsal view b-c compound chaetae, anterior chaetigers d dorsalmost compound chaetae, anterior chaetiger e compound and dorsal simple chaetae, midbody f dorsalmost compound chaeta, posterior chaetiger g ventralmost compound chaetae, posterior chaetiger h dorsal simple chaeta

Figure 3.Namalycastis jaya sp. n.Holotype: a jaw pieces, ventromedial view b anterior parapodium from chaetiger 10 c parapodium from chaetiger 50 d parapodium from chaetiger 100 e posterior parapodium from chaetiger 210 f posterior parapodium from chaetiger 230 g sub-neuroacicular spiniger, chaetiger 10 h sub-neuroacicular falciger, chaetiger 109 i supra-neuroacicular spiniger, chaetiger 80 j sub-neuroacicular spiniger, chaetiger 210 k sub-neuroacicular falciger, chaetiger 210 l supra-neuroacicular falciger, chaetiger 20. Fs Finely serrated; Cs Coarsely serrated; Ms Medium serrated.

Figure 3.Nicon orensanzi sp. n. Paratype (UANL 7840). A Anterior end, dorsal view B Mandibles; Holotype (LACM) C Parapodium 9, anterior view D Parapodium 29, anterior view E Parapodium 62, anterior view F Infracicular sesquigomph falcigers of parapodium 62. Scale bars: A= 1 mm; B= 0.1 mm; C–E= 100 µ; F= 30µ.

Figure 2.Perinereis rookeri sp. n. A Anterior end, dorsal view B Anterior end, ventral view. Measures: A–B = 1 mm.