This species is found at both hydrothermal vent and cold seeps. The specimens are found with their anterior end thrust into diffused vents and attached with byssus to outcrops close to the vent openings. Periostracum colour is variable according to habitat. Development with planktotrophic larvae.

Central Japan: Sagami Bay; Okinawa Trough: Minami-Ensei Knoll and Iheya Ridge, 710 m to 1389 m.

Shell large, rather thick and solid. Umbones subterminal, at about one-tenth of the shell length. Ligament strong. Extremely thick and large ctenidia with long demibranchs. No extreme mantle fusion, valvular siphonal membrane short. Anterior adductor muscle scar located in front of the umbo. Posterior adductor muscle scar rounded trapezoid. Gut with a single clockwise loop.

Shell length up to 96 mm.

Paratype for Bathymodiolus aduloides Hashimoto & Okutani, 1994
Catalog Number: USNM 880285
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol)
Year Collected: 1993
Locality: Mid-Okinawa Trough, Iheya Ridge, Hydrothermal Vent Site, Japan, North Pacific Ocean
Depth (m): 1389 to 1389
Vessel: Shinkai 2000 DSR/V

Paratype for Bathymodiolus aduloides Hashimoto & Okutani, 1994
Catalog Number: USNM 880286
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Alcohol (Ethanol)
Locality: Mid-Okinawa Trough, Iheya Ridge, Hydrothermal Vent Site, Japan, North Pacific Ocean
Vessel: Shinkai 2000 DSR/V

Depth range based on 3 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 1042 - 3600
  Temperature range (°C): 1.629 - 3.957
  Nitrate (umol/L): 38.302 - 40.512
  Salinity (PPS): 34.433 - 34.675
  Oxygen (ml/l): 1.660 - 3.369
  Phosphate (umol/l): 2.626 - 2.876
  Silicate (umol/l): 116.291 - 148.729

Graphical representation

Depth range (m): 1042 - 3600

Temperature range (°C): 1.629 - 3.957

Nitrate (umol/L): 38.302 - 40.512

Salinity (PPS): 34.433 - 34.675

Oxygen (ml/l): 1.660 - 3.369

Phosphate (umol/l): 2.626 - 2.876

Silicate (umol/l): 116.291 - 148.729
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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