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Males smaller (17-22 mm ML) than females (17-30 mm ML). A spermatophore from 20 mm ML male had a total length of 5.2 mm; with 2.2 mm sperm reservoir, 0.9 mm cement gland and 2.1 mm spiral filament. Cement gland simple, without color; spiral filament plain, with 2 or 3 coils at oral end. Adult females have dark pigmented seminal vesicles under collar muscle on each side of nuchal cartilage. Eggs spherical to oval, about 1.0 mm in diameter.
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | 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.