NOTES ON THE BEHAVIOR OF EUPRYMNA SCOLOPES (CEPHALOPODA, SEPIOLIDAE)
NOTES ON THE BEHAVIOR OF EUPRYMNA SCOLOPES (CEPHALOPODA, SEPIOLIDAE)
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DOI:
10.1163/156853983x00020
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发表时间:
1983-01-01
期刊:
影响因子:
1.3
通讯作者:
MOYNIHAN, M
中科院分区:
文献类型:
--
作者:
MOYNIHAN, M
Individuals (18) of the sepiolid E. scolopes were collected in Kaneohe Bay, Oahu, Hawaii [USA] and observed in the laboratory. They were non-gregarious and primarily nocturnal. Feeding and defensive behavior were studied. The species prefers shrimp as prey. It is often cryptic. Among the adaptations for crypsis are color changes to match backgrounds (substrates), sand burrowing and the cementing of sand grains to the back of an individual itself. The grains presumably are held in place by adhesive secretions of the skin. The captive animals also produced patterns which were conspicuous rather than cryptic. They were highly visible, occasionally intricate, combinations of light and dark. Some of them were distinctive. A single copulation was peculiar in certain respects (the spatial positions of the performers), but reminiscent of true cuttlefishes of the genus Sepia in other respects (color dislays of both male and female). The phylogenetic implications of these observations are far from clear. On the behavioral evidence, Euprymna could be either a squid-like cuttlefish or a cuttlefish-like squid. It does not show any particular resemblance to Idisepius, another supposed relative of Sepia.