Table 7.
List of inactive vent species for the Central Indian Ridge (CIR), the South East Indian Ridge (SEIR) and the Rodriguez Triple Junction (RTJ) within inactive hydrothermal vent fields in each region. Presence of each taxon indicated as low ('+'), medium ('++') or high ('+++') density. Low density = 1 specimen, medium = 2-9 specimens and high ≥ 10 specimens. Taxa found exclusively within or in close proximity to inactive hydrothermal vent fields are highlighted in bold, taxa observed only within inactive vent fields are additionally indicated by a plus.
| Phylum | Inactive vent taxa | CIR | SEIR | RTJ |
| Annelida | Polynoidae gen. indet. | ++ | ++ | |
| Lepidonotopodium gen. inc. (DZMB_2021_0002) + | + | |||
| Lepidonotopodium gen. inc. (DZMB_2021_0003) + | + | |||
| Arthropoda | Glyptelasma gen. inc. | +++ | + | |
| Amphipoda ord. inc. + | + | |||
| Munidopsisaries sp. inc. | + | |||
| Munidopsispallida sp. inc. | ++ | ++ | ||
| Thymopideslaurentae sp. inc. | + | |||
| Nematocarcinus gen. inc. (DZMB_2021_0004) | + | |||
| Nematocarcinus gen. inc. (DZMB_2021_0005) | + | + | ||
| Cerataspismonstrosus sp. inc. | ++ | |||
| Munnopsidae fam. inc. (DZMB_2021_0007) + | +++ | |||
| Bryozoa | Cheilostomatida fam. indet. (DZMB_2021_0009) + | +++ | ||
| Chordata | Synaphobranchidae gen. indet. | ++ | ++ | + |
| Histiobranchus gen. inc. | + | |||
| Coryphaenoideslongifilis sp. inc. | + | ++ | ||
| Halosauropsismacrochir gen. inc. | ++ | |||
| Ophidiidae gen. indet. (DZMB_2021_0014) | + | |||
| Bassozetus gen. inc. | + | |||
| Spectrunculusgrandis sp. inc. | ++ | |||
| Cnidaria | Spirularia fam. indet. | ++ | ||
| Actiniaria fam. indet. (DZMB_2021_0017) | ++ | |||
| Actiniaria fam. indet. (DZMB_2021_0018) | + | |||
| Actiniaria fam. indet. (DZMB_2021_0020) | + | |||
| Actiniaria fam. indet. (DZMB_2021_0021) | + | |||
| Actiniaria fam. indet. (DZMB_2021_0022) | ++ | |||
| Actinoscyphia sp. indet | ++ | + | ||
| Actinostolidae gen. indet. | + | ++ | ||
| Actinostola sp. indet. (DZMB_2021_0028) | + | + | ||
| Bathyphellia sp. indet. (DZMB_2021_0032) | ++ | |||
| Chondrophellia sp. indet. + | ++ | |||
| Alcyonacea fam. indet. + | ++ | |||
| Anthomastus sp. indet. + | ++ | |||
| Chrysogorgia sp. indet. (DZMB_2021_0034) + | + | |||
| Chrysogorgia sp. indet. (DZMB_2021_0035) + | ++ | |||
| Iridogorgiamagnispiralis sp. inc. | +++ | |||
| Clavulariidae gen. indet. (DZMB_2021_0036) | + | ++ | ||
| Clavulariidae gen. indet. (DZMB_2021_0037) | + | |||
| Isididae gen. indet. (DZMB_2021_0040) | + | |||
| Isididae gen. indet. (DZMB_2021_0042) | ++ | |||
| Isididae gen. indet. (DZMB_2021_0045) + | + | |||
| IsididaeAcanella gen. inc. | ++ | |||
| IsididaeBathygorgia gen. inc. | ++ | ++ | ||
| IsididaeJasonisis gen. inc. | ++ | |||
| IsididaeLepidisis gen. inc. | ++ | |||
| Lepidisis spp. indet. | ++ | ++ | ||
| Primnoidae gen. indet. (DZMB_2021_0049) | ++ | |||
| Stalk of Alcyonacea or Antipatharia ord. inc. | ++ | |||
| Heteropathes sp. indet. | ++ | |||
| Bathypathes gen. inc. (DZMB_2021_0051) | + | |||
| Bathypathespatula sp. inc. | ++ | |||
| Pennatulacea ord. inc. (DZMB_2021_0052) | + | |||
| PennatulaceaKophobelemnon ord. inc. | + | |||
| Zoantharia fam. indet. (DZMB_2021_0056) | +++ | +++ | ||
| Zoantharia fam. indet. (DZMB_2021_0057) | +++ | +++ | ||
| Zoantharia fam. indet. (DZMB_2021_0058) + | +++ | |||
| Hydrozoa ord. indet. (DZMB_2021_0059) + | +++ | |||
| Hydrozoa ord. indet. (DZMB_2021_0062) | ++ | |||
| Echinodermata | Freyellidae fam. inc. | + | ||
| Freyella gen. inc. | ++ | |||
| Goniasteridae gen. indet. (DZMB_2021_0066) | + | |||
| Circeaster gen. inc. + | + | ++ | ||
| Hapalosoma sp. indet. | + | |||
| Synallactidae gen. indet. (DZMB_2021_0077) | + | |||
| Synallactes sp. indet. | ++ | |||
| Ophiosphalma gen. inc. + | + | |||
| Ophiosphalmaarmigerum sp. inc. | ++ | + | ||
| Mollusca | Abyssochrysoidea superfam. inc. | +++ | ||
| Phymorhynchus sp. indet. (Egg capsules) | +++ |