…In the families Hectocotylidae and Hectocotylidae, males are dwarf males, only about 1/20 the size of females, but their hectocotyls are long and whip-shaped at the end, and when mating to transfer spermatophores, the hectocotyls break off and remain inside the female's body. The modern naturalist Cuvier, who discovered this in the Hectocotylid, mistook it for a parasite that lives in the mantle cavity of octopuses and named it Hectocotylus octopodis (1829), and since then, the hectocotyls of cephalopods are still called hectocotylus today. Eggs are usually laid in egg sacs attached to the stalk. … *Some of the terminology that mentions "Hectocotylus octopodis" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…アミダコ科やフネダコ科では雄は雌の1/20くらいの大きさしかない矮小雄(わいしようゆう)であるが,交接腕は長大で,先端がむち状になっており,精莢を渡すための交接に際しては交接腕は切れて雌の体内に残る。アミダコのこれを発見した近世の博物学者キュビエが,これをタコの外套腔内に宿る寄生虫と誤り,Hectocotylus octopodisと命名(1829)したところから,頭足類の交接腕を現代でもヘクトコチルスhectocotylusと呼ぶ。卵は通常柄についた卵囊に入れて産み出される。… ※「Hectocotylus octopodis」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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