Definition of hectocotylus in English:
noun (plural hectocotyli ˌhɛktə(ʊ)ˈkɒtɪlʌɪˌhɛktə(ʊ)ˈkɒtɪliː)Zoology
A modified arm used by male octopuses and some other cephalopods to transfer sperm to the female.
- In some species, the specialized arm tip may be pinched off and left in the female's mantle cavity: this is known as the hectocotylus arm.
- The hectocotylus is used to deliver the spermatophores (sperm-filled sacs) to the female during mating.
- In some cephalopods, the end of the hectocotylus snaps off and remains imbedded in the female.
Definition of hectocotylus in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.