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Mar Biol. 2010;157(2):393-400. Epub 2009 Nov 10.

Sperm storage and mating in the deep-sea squid Taningia danae Joubin, 1931 (Oegopsida: Octopoteuthidae).

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Ocean Ecosystems, Centre for Ecological and Evolutionary Studies, University of Groningen, P.O. Box 14, 9750 AA Haren, The Netherlands.
Department of Environmental Affairs and Tourism, Private Bag X2, Roggebaai 8012, Cape Town, 8000 South Africa.
Earth & Oceanic Sciences Research Institute, Auckland University of Technology, Private Bag 92006, Auckland, 1142 New Zealand.


Spermatangium implantation is reported in the large oceanic squid Taningia danae, based on ten mated females from the stomachs of sperm whales. Implanted spermatangia were located in the mantle, head and neck (on both sides) or above the nuchal cartilage, under the neck collar and were often associated with incisions. These cuts ranged from 30 to 65 mm in length and were probably made by males, using the beak or arm hooks. This is the first time wounds facilitating spermatangium storage have been observed in the internal muscle layers (rather than external, as observed in some other species of squid). The implications of these observations for the mating behavior of the rarely encountered squid T. danae are discussed.

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