and seminal fluid production in the adult blue crab Callinectes danae (Portunidae).
The sperm mass of surfperches has been referred to as a spermatophore
in previous literature (Shaw and Allen 1977; Gardiner 1978).
Meanwhile, the larger male tries to transfer his spermatophore
to the small one.
a-b) Spermatangias inserted in the inner mantle wall of a female, c) spermatangia, d) spermatophore
Mating occurs head to head, the male transferring a spermatophore
package to the female.
As soon as we established the breeding units, we observed frequent mating activities such as amplexus and hula (the behavior a male displays before spermatophore
deposition), which lasted until we separated males from females on Day 26.
Spermatophoric reaction reappraised: novel insights into the functioning of the loliginid spermatophore
based on Doryteuthis plei (Mollusca: Cephalopoda).
production also requires considerable investment for males (Wedell, 1992; Vahed and Gilbert, 1996), which also indicates a possible trade-off between macroptery and reproductive success.
If I tried to use the word spermatophore
in general conversation, I would definitely regret it.
She places this spermatophore
in a specialized cavity near the base of her rearmost walking legs.
This appears to be the third record of a spermatophore
in a species of Streptaxidae, after reports in Sinistrexcisa de Winter, Gomez & Prieto, 1999, and Dadagulella Rowson & Tattersfield, 2013 (de Winter et al.
The results have presented the scientists with a further mystery; since the spermatophore
is transferred internally, it is not clear how the female uses the size of this gift to decide whether to mate with a male.