Not stated, but the species-group name for H. fusca from Latin fuscus 'dark' is evidently in reference to the ... [details]
Not stated, but the name for H. tuberculata may refer to tubercles (knobs) on each verticil spine as the Latin noun ... [details]
NSMT-Pol. H 119 [details]
Offshore east off northern tip of Tanegashima Island, Southern Japan, 80 m, 30.8225° 131.1335° (map estimate from ... [details]
Urata (beach), Tanegashima (island), Southern Japan. 30.8233° 131.0409° [details]