Thalassarachna alvina (Bartsch 1994)

Synonym: Halacarellus alvinus Bartsch 1994 (original designation)

Type material: Holotype: MNHN 63 B 5 (Bartsch 1994).

Type locality: Portugal: Azores Archipelago, Lucky Strike hydrothermal field, Azores Triple Junction, 37°20′N, 32°17′W (Bartsch 1994; GBIF 2022).

Geographical distribution: Portugal: Azores Archipelago: Lucky Strike field, Azores Triple Junction (Bartsch 1994; GBIF 2022).

Distribution in Portugal: Azores Archipelago: Lucky Strike field, Azores Triple Junction (Bartsch 1994).

Ecological notes: Marine benthic, deep sea at 1636 m (Bartsch 1994).