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Georges Cuvier's original illustration of an octopus hectocotylus, which he named Hectocotyle octopodis. A hectocotylus (pl.: hectocotyli) is one of the arms of male cephalopods that is specialized to store and transfer spermatophores to the female. [1]
Histioteuthis heteropsis, known as the strawberry squid, is a species of small cock-eyed squid. [2] The scientific nomenclature of these squid stems from their set of differently sized eyes, one being small and blue and the other being large and yellow.
A SQUID (superconducting quantum interference device) is a very sensitive magnetometer used to measure extremely weak magnetic fields, based on superconducting loops containing Josephson junctions. SQUIDs are sensitive enough to measure fields as low as 5×10 −18 T with a few days of averaged measurements. [ 1 ]
Reproductive strategies differ between cephalopod species. In giant Pacific octopus, large eggs are laid in a den; it will often take several days to lay all of them. [ 112 ] Once the eggs are released and normally attached to a sheltered substrate, the female usually die shortly after, but octopuses and a few squids will look after their eggs ...
Not much is known about the colossal squid's reproductive cycle, although it does have two distinct sexes. Many species of squid, however, develop sex-specific organs as they age and develop. [ 42 ] The adult female colossal squid has been discovered in much shallower waters, which likely implies that females spawn in shallower waters, rather ...
Uroteuthis singhalensis is a species of squid characterized by its long, slender body shape. The mantle (main body) is cylindrical, tapering to a sharp point at the rear, and is about 4–7 times as long as it is wide in mature individuals.
Squid are also known to be sensitive to temperature, salinity, and circulation in the water. [10] These habitat components can affect reproduction and life cycles. Chinese spear squid at different growth stages sometimes have different names among fishermen: they call the larvae of squid "small rolls", and the sub-adults are called "middle ...
The light organs of squid contain luminescent bacteria in the family Vibrionaceae; a number of different species of bacteria are involved, and some squid species host multiple strains. [4] Little is known of the reproductive behaviour of this squid.