| 释义 |
hectocotyl, -e Zool.|hɛktəʊˈkɒtɪl|
Also in L. form hectocotylus.
[ad. mod.L. Hectocotylus, name given by Cuvier to what he took for a genus of parasitic worms (see def. below), f. hecto- + Gr. κοτύλη small cup, hollow thing (cf. cotyle 2 b).]
A modified arm in male dibranchiate Cephalopods, which serves as a generative organ, and in some species is detached and remains in the pallial cavity of the female; in this position formerly mistaken for a parasite, to which the name Hectocotylus octopodis was given by Cuvier.
1854Woodward Mollusca (1856) 65 Dr. Albert Kölliker has suggested that the real males..are the hectocotyles, previously mistaken for parasitic worms. The hectocotyle of octopus granulatus was described by Cuvier, who obtained several specimens from octopods captured in the Mediterranean. 1877Huxley Anat. Inv. Anim. viii. 538 The male is very much smaller than the female, and gives rise to a Hectocotylus.
Hence hectoˈcotylize v. trans., (a) to convert or modify into a hectocotyle; (b) to impregnate with a hectocotyle. hectocotyliˈzation, the process of hectocotylizing. hectoˈcotylism, the formation of a hectocotyle.
1870Nicholson Zool. 272 The arm so affected..is said to be ‘hectocotylised’. 1877Huxley Anat. Inv. Anim. viii. 530 The male Cephalopods are distinguished..by the asymmetry of their arms, one or more of which, on one side, are peculiarly modified, or hectocotylised. Ibid. 534 There is thus a kind of hectocotylisation in the Tetrabranchiata. 1878Bell Gegenbaur's Comp. Anat. 327 This ‘hectocotylised arm’ is not developed, as are the others, by a process of free gemmation, but it is formed in a vesicle, from which it is not let loose till it is mature. Ibid. 386 Hectocotylism is the cause therefore of a functional adaptation. |