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Bigfin squids are a group of rarely seen cephalopods with a distinctive morphology.They are placed in the genus Magnapinna and family Magnapinnidae. [2] Although the family was described only from larval, paralarval, and juvenile specimens, numerous video observations of much larger squid with similar morphology are assumed to be adult specimens of the same family.
Articles relating to the bigfin squid (genus Magnapinna), a group of rarely seen cephalopods with a distinctive morphology.Although the family was described only from larval, paralarval, and juvenile specimens, numerous video observations of much larger squid with similar morphology are assumed to be adult specimens of the same family.
The literature on cephalopod size has been further muddied by the frequent misattribution of various squid specimens to the giant squid genus Architeuthis, often based solely on their large size. In the academic literature alone, such misidentifications encompass at least the oegopsid families Chiroteuthidae , Cranchiidae , Ommastrephidae ...
Magnapinna sp. C Magnapinna sp. C is an undescribed species of bigfin squid known only from a single specimen of 79-millimetre (3.1 in) mantle length (ML) collected in the southern Atlantic Ocean and held in the Natural History Museum .
Magnapinna pacifica is a species of bigfin squid known only from three immature specimens; two caught at a depth of less than 300 m (980 ft) and one from a fish stomach. M. pacifica is the type species of the genus Magnapinna. It is characterised primarily by its proximal tentacles, which are wider than adjacent arms and bear numerous suckers.
Photo shot through a polarizing filter of a Cranchiidae sp from the Operation Deep Scope Expedition 2004. This squid, about four-inches across, uses transparency to hide from potential predators.
Magnapinna talismani is a species of bigfin squid known only from a single damaged specimen. It is characterised by small white nodules present on the ventral surface of its fins. It is the first described species of Magnapinna, although it was not recognized as a member of the genus until over a century later.
The only known specimen of Magnapinna sp. B is a juvenile male of 95-millimetre (3.7 in) mantle length (ML) held in the Bergen Museum. It was caught by the R/V G.O. SARS (MAR-ECO cruise super station 46, local station 374) on July 11, 2004, at 42°48′N 29°18′W / 42.8°N 29.3°W / 42.8;