Life History
Little is known about Grimpoteuthis reproduction. The male reproductive tract shows considerable variation between species, and thus there is significant confusion in the identification of certain parts.
In the family Opisthoteuthidae, of which the Grimpoteuthis is a part of, a hectocotylusexternal link is absent, but some species exhibit other forms of sexual modification; enlarged suckers being the most common modification. The spermatophores of octopuses in this family have lost their ejaculatory apparatus and form sperm packets with an operculumexternal link. The sperm packets are transferred to the female's mantle cavityexternal link. The eggs of this family are very large, and covered with a tough casing which is secreted by the oviducal glandexternal link and hardens in seawater. Eggs are individually laid directly on the ocean floor, on the undersides of rocks or shells. The ovaries of these octopuses contain eggs at different stages, implying that they breed continually instead of having a distinct breeding season.