IMIS | Flanders Marine Institute

Flanders Marine Institute

Platform for marine research


Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

Vulcanoctopus hydrothermalis gen. et sp. nov. (Mollusca, Cephalopoda): an octopod from a deep-sea hydrothermal vent site
González, Á.F.; Guerra, Á.; Pascual, S.; Briand, P. (1998). Vulcanoctopus hydrothermalis gen. et sp. nov. (Mollusca, Cephalopoda): an octopod from a deep-sea hydrothermal vent site. Cah. Biol. Mar. 39(2): 169-184
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
Peer reviewed article  

Available in  Authors 


Authors  Top 
  • González, Á.F.
  • Guerra, Á., more
  • Pascual, S.
  • Briand, P.

    We describe two specimens of an octopod from a hydrothermal vent of the East Pacific Rise (13 degree N, 2640 m) collected during the French cruise HOT 96 (CNRS/IFREMER). They are two males, one immature and one mature. The diagnosis of this new genus is as follows: Benthic animals with a muscular and semi-translucent body; lack of any type of chromatic elements in the skin; eye with no trace of an iris; presence of a large white body covering the eye-ball, the optic nerves and the optic lobe; digestive gland multilobulate; presence of a black bulb, here called dark swelling, in proximal third of the intestine; presence of a crop and absence of an ink sac. The species Vulcanoctopus hydrothermalis is a small benthic animal up to 35 mm mantle length. The posterior part of the mantle is mitre-like. Arms 2.5-4 times the length of the mantle. Right arm III hectocotylized. Ligula short (9.5 % of the hectocotylized arm), lance-shaped and without transverse ridges. Calamus short (17.9 % of the ligula length). In adult males enlarged suckers absent, and the diameter of the largest sucker is about 6 % of the mantle length. Depth of the largest sector of the web about 4.8 % of the longest arm. Gills with eight lamellae per demibranch. The possibility of justifying the raising of a new sub-familial status (Vulcanoctopodinae) of Octopodidae, ecology and adaptations of these vent animals are discussed.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors