Benthoctopus

Benthoctopus
Benthoctopus sp. and clam on the Davidson Seamount at 1,461 m depth
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Order:	Octopoda
Family:	Octopodidae
Subfamily:	Bathypolypodinae
Genus:	Benthoctopus Grimpe, 1921
Species
Around 25, see text.

Benthoctopus is a genus of octopuses comprising around 25 species. It is thus the most species-rich genus of the deep-sea subfamily Bathypolypodinae. They seem to occur worldwide, and most specimens have been brought up from depths of 200-3,000 m.^[1]

Species

Unidentified Benthoctopus species and orange-stalked crinoid on the Davidson Seamount at 2,422 m depth

Benthoctopus sp. on DSV Alvin's port manipulator arm

New species are being described at a rate of approximately 1–2 per year on average.

• Benthoctopus abruptus
• Benthoctopus berryi
• Benthoctopus canthylus
• Benthoctopus clyderoperi
• Benthoctopus ergasticus
• Benthoctopus eureka (= B. hyadesi; tentatively placed here^[1])
• Benthoctopus fuscus (nomen dubium^[1])
• Benthoctopus hokkaidensis
• Benthoctopus januarii – January octopus
• Benthoctopus karubar
• Benthoctopus leioderma – smoothskin octopus
• Benthoctopus levis
• Benthoctopus longibrachus
• Benthoctopus lothei (nomen dubium)
• Benthoctopus macrophallus
• Benthoctopus magellanicus (nomen dubium; tentatively placed here^[1])
• Benthoctopus oregonae
• Benthoctopus oregonensis
• Benthoctopus piscatorum
• Benthoctopus profundorum
• Benthoctopus pseudonymus (nomen dubium^[1])
• Benthoctopus rigbyae^[2]
• Benthoctopus robustus
• Benthoctopus sibiricus
• Benthoctopus tangaroa
• Benthoctopus tegginmathae
• Benthoctopus thielei
• Benthoctopus yaquinae
• Benthoctopus sp. A "Villarroel et al. 2001"^[1]
• Benthoctopus sp. B "Villarroel et al. 2001"^[1]
• Benthoctopus cf. januarii "Nesis 1973" (may be B. januarii or B. longibrachus)^[1]

Footnotes

1. Ibáñez et al. (2006)
2. Michael Vecchione, Louise Allcock, Uwe Piatkowski, Jan Strugnell (2009). "Benthoctopus rigbyae, n. sp., a new species of cephalopod (Octopoda; Incirrata) from near the Antarctic Peninsula". Malacologia 15 (1): 13–28. doi:10.4002/040.051.0102.

References

• Ibáñez, Christian M.; Sepúlveda, Roger D. & Chong, Javier (2006): A new species of Benthoctopus Grimpe, 1921 (Cephalopoda: Octopodidae) from the southeastern Pacific Ocean. Proceedings of the Biological Society of Washington 119(3): 355–364. DOI: 10.2988/0006-324X(2006)119[355:ANSOBG]2.0.CO;2 HTML abstract

External links

• CephBase: Benthoctopus