distance. During copulation, the hectocotylus breaks off from the male. The funnel–mantle locking apparatus on the hectocotylus keeps it lodged in the pallial...

When octopuses reproduce, the male uses a specialised arm called a hectocotylus to transfer spermatophores (packets of sperm) from the terminal organ...

approaches a female and begins to caress her with his modified arm, the hectocotylus. A male mates with a female by grabbing her, which sometimes completely...

all. As an example, the intromittent organ of most Cephalopoda is the hectocotylus, a specialized arm, and male spiders use their pedipalps. Even within...

the mantle cavity. During copulation of some cephalopod species, the hectocotylus transfers the spermatophore from Needham's sac into the mantle cavity...

females to create their eggcases. The males use a modified arm, the hectocotylus, to transfer sperm to the female. For fertilization, the arm is inserted...

grow after the paralarval stage, and the use of a penis, instead of a hectocotylus. Genus Octopoteuthis Octopoteuthis danae Octopoteuthis deletron Octopoteuthis...

meters. Male with attached hectocotylus that has broken free from its sac Cut-away drawing of the viscera Details of the hectocotylus O. tuberculata paralarva...

of most cephalopods develop a specialised arm for sperm delivery, the hectocotylus. Anatomically, cephalopod limbs function using a crosshatch of helical...

spermatophore production. Most cephalopods use a specialized arm called the hectocotylus to deliver spermatophores to the female. The spermatophores of the giant...

the male, which is specially adapted for the purpose and known as a hectocotylus, and placed inside the mantle cavity of the female during mating. The...

hectocotylus, an arm tip which is capable of transferring their spermatozoa into the female mantle cavity. Though not all species use a hectocotylus;...

modified arm called a hectocotylus. That in turn is used to transfer the spermatophores to the female. In species where the hectocotylus is missing, the "penis"...

more than 1 m (3.3 ft) long using his hectocotylus (specialized arm) in the female's mantle. The hectocotylus is found on the third arm of male octopuses...

the hectocotylus. Males then climb on the female's back, at times completely engulfing the female's mantle obstructing her vision. The hectocotylus is...

been observed, and unlike other octopuses, members of Cirrata lack a hectocotylus for the transfer of sperm packets. Cirrate octopus eggs are large and...

Lateral view of adult male with hectocotylus The third right arm in male blanket octopus is called the hectocotylus, which has a sperm-filled pouch between...

order Octopoda. The seven-arm octopus is so named because in males, the hectocotylus (a specially modified arm used in egg fertilization) is coiled in a sac...

fertilisation, called the hectocotylus, is borne on the left ventral arm. The oral surface of the modified region of the hectocotylus is wide, swollen, and...

left or right arm develops into a secondary sexual organ known as the hectocotylus. It is of equal length or shorter than the undeveloped opposite arm and...

have a large arm in a spherical pouch modified for mating, known as a hectocotylus. During mating, this arm is detached, and kept by the female in her mantle...

the hectocotylus, which is inserted into the female's mantle cavity to deliver a spermatophore during copulation. In some species, the hectocotylus breaks...

Chiroteuthis is a genus of chiroteuthid squid, comprising two subgenera. The hectocotylus is absent from all members of the genus; instead, a penis extending from...

have adjacent dens, where the male is able to extend his mating arm (hectocotylus) to the female's den, while resting in his own. These two individuals...

Mating has never been observed in O. californiana; the males lack the hectocotylus of typical octopus, instead having a series of enlarged suckers that...

sperm-carrying arm called a hectocotylus. That in turn is used to transfer the spermatophores to the female. In species where the hectocotylus is missing, the "penis"...

changing color and posture. The male then mounts the female, inserts the hectocotylus under the mantle of the female, and releases the sperm into the female's...

One of the ventral arms develops into a secondary sexual organ (the hectocotylus) in males. All ommastrephids are active predators. Their arms and tentacles...

survival and for reproduction: the specialized reproductive arm (the hectocotylus) detaches from the male during mating and remains within the female's...

arm of pair IV in males is modified into a sexual organ known as the hectocotylus. They bear long fleshy protrusions (papillae) with toothless suckers...