Sex identification and mating in the blue-ringed octopus, Hapalochlaena lunulata

  title={Sex identification and mating in the blue-ringed octopus, Hapalochlaena lunulata
  author={Mary W. Cheng and Roy L. Caldwell},
  journal={Animal Behaviour},
We studied the reproductive behaviour of the blue-ringed octopus, Hapalochlaena lunulata, in the laboratory by examining 15 male-male and nine male-female interactions. [] Key Result The initiation of physical contact was independent of sex, size or residency status, and there were no noticeable changes in behaviour such as sexual displays associated with courtship or aggression prior to contact.

Hapalochlaena maculosa ( Cephalopoda : Octopodidae )

Male strategic allocation of spermatophores based female mating history is an important factor influencing mating behaviours of this species, and this presents an animal model for studying aspects of sperm competition and dynamic mate choice behaviours.

Aggressive male mating behavior depends on female maturity in Octopus bimaculoides

Octopus mating dynamics may be more behaviorally complex than initially assumed and the lack of prominent visual displays in these mating trials indicates the importance of chemical cues in Octopus mating systems, as has been demonstrated for other cephalopods.

Chemotactile social recognition in the blue-ringed octopus, Hapalochlaena maculosa

These findings provide the first evidence for chemotactile sex discrimination and mate recognition within cephalopods, and supplement previous observations that male H. maculosa do not appear to detect the sex of conspecifics from a distance.

Mating behavior of Abdopus aculeatus (d’Orbigny 1834) (Cephalopoda: Octopodidae) in the wild

Frequent male–female copulations and intense male–male aggression were consistent behavioral components of mating in A. aculeatus, and a male-typical body pattern appeared to facilitate distant sex identification.

Reproductive behaviour and cross-mating of two closely related pygmy squids Idiosepius biserialis and Idiosepius thailandicus (Cephalopoda: Idiosepiidae)

This study revealed that the two ‘species’ are not reproductively isolated and reproductive behaviour of crossed pairs was similar to those of individual species.

Sexual Selection and the Evolution of Male Reproductive Traits in Benthic Octopuses

The hypothesis that, at least in some lineages, sexual selection may account for the divergence in reproductive traits of male octopuses is supported.

Preliminary report of specific behaviours of juvenile greater blue-ringed octopus Hapalochlaena lunulata (Quoy and Gaimard, 1832)

Five days after beginning rearing, iridescent blue rings, similar to those in the adult, appeared on the entire skin of the octopus and continued to be expressed with varying intensity and when theOctopus was behaving aggressively it flashed the blue rings.

Sexual cannibalism by Octopus cyanea on a Pacific coral reef

This report reports the first documented case of sexual cannibalism in a large female Octopus cyanea observed continuously for 2.5 days in Palau, Micronesia, when she was out of her den.

Chemical cues correlate with agonistic behaviour and female mate choice in the southern blue-ringed octopus, Hapalochlaena maculosa (Hoyle, 1883) (Cephalopoda: Octopodidae)

Results suggest that female H. maculosa can use chemosensory cues to discriminate the sex, and possibly identity, of conspecifics and that this information might influence their mate choice, although the mechanisms underlying these responses and subsequent copulatory access to females by males remain unknown.



Observations on the life history of the blue-ringed octopus Hapalochlaena maculosa

The unusual life-history of H. maculosa suggests that it is a highly evolved octopus species, and its direct development, simple diet, and rapid rate of growth make the animal relatively easy to cultivate for experimental or pharmacological purposes.

Assessment of the mating history of female pygmy octopuses and a possible sperm competition mechanism

  • J. Cigliano
  • Biology, Environmental Science
    Animal Behaviour
  • 1995

Absence of social recognition in laboratory-reared cuttlefish, Sepia officinalis L. (Mollusca: Cephalopoda)

  • J. Boal
  • Psychology
    Animal Behaviour
  • 1996
Social interactions of these marine invertebrates depend upon relative size, internal motivation and the behaviour patterns of conspecifics, rather than upon any direct recognition of social partners.


  • J. Voight
  • Environmental Science, Biology
    Evolution; international journal of organic evolution
  • 1991
Female octopuses are predicted to choose mature males as mates although the mechanisms by which females might assess male maturity are unknown although the comparatively few observations of copulation are unknown.

Behavior and systematics of cephalopods from Lizard Island, Australia, based on color and body patterns

Based on observations of live animals and a systematic evaluation of preserved specimens, the presence of Octopus ornatus is reported in Australian waters for the first time and the elevation of the subgenus Metasepia to generic status is confirmed.

Male reproductive tract, spermatophores and spermatophoric reaction in the giant octopus of the North Pacific, Octopus dofleini martini

The extraordinarily high dry-weight content of spermatophoric plasma was shown to be largely due to bound amino sugar, carbohydrate, peptide and protein, and Glycogen was identified as a major constituent of spermatozoa.

The structure and function of the oviducal gland in octopods (Cephalopoda)

  • D. FroeschH. Marthy
  • Biology
    Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1975
The oviducal gland of Octopus vulgaris is involved in the storage of spermatozoa and the production of an egg-laying cement, which serves finally to form an egg string for fixation to an appropriate substrate.

Crypsis, conspicuousness, mimicry and polyphenism as antipredator defences of foraging octopuses on Indo-Pacific coral reefs, with a method of quantifying crypsis from video tapes

The results suggest that, while foraging, the overall strategy is to use polyphenism to produce «apparent rarity» of any single phenotype (or search image) through mechanisms of crypsis, conspicuousness and mimicry, all of which are guided by keen vision in this marine invertebrate.