Bolitaena pygmaea (Verrill, 1884)

Pygmy pelagic octopod

Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Bolitaena pygmaea AquaMaps Data sources: GBIF OBIS

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Image of Bolitaena pygmaea (Pygmy pelagic octopod)

No image available for this species;
drawing shows typical species in Bolitaenidae.

Classification / Names প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | CoL | ITIS | WoRMS

Cephalopoda | Octopoda | Bolitaenidae

Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range বাস্তুসংস্থান

ভাসমান; গভীরতার পরিসীমা 100 - 1400 m (সূত্র 96968). Subtropical

Distribution দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন

Indo-Pacific, Atlantic Ocean and the Mediterranean. Subtropical to subtropical.

Length at first maturity / আকৃতি / Weight / Age

পরিপক্কতা : L_m ? range ? - ? cm Max length : 11.5 cm ML পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 122436)

Depth range from 100 to 1,400 m. These small pelagic octopuses typically live over deeper water. Young animals tend to occur in the shallower end of the range. As members of this species reach sexual maturity the iridescence of the digestive gland and eyes is lost and animals migrate to deeper darker waters. Pigmentation greatly increases in females as they mature and the arms become relatively longer. Increased pigmentation may be associated with the need to mask output from the female's circumoral light organ. This light organ may be used for reproductive signalling to males. The posterior salivary glands of mature males are greatly enlarged and have been suggested to produce a chemical attractant for females (Ref. 96968).

Life cycle and mating behavior পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae

Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults.