Information om | Engelska ordet GONOPODIUM

Exempel på hur man kan använda GONOPODIUM i en mening

• The anal fin of the male fish has evolved into a gonopodium, a stick-shaped organ used for reproduction.
• Internal fertilisation is also evidenced by specialized pelvic fin rays (Saurichthys calcaratus) or ventral scales (gonopodium; Saurichthys curionii, Saurichthys macrocephalus) that are interpreted as copulatory organs of males.
• Like most poeciliids, male anal fins are modified into a gonopodium (intromittent organ) that is used to deliver sperm and impregnate females during mating.
• Unlike some male livebearer, which court the females they wish to breed with, male Neoheterandria elegans copulate by thrusting his gonopodium at the female's vent.
• Male guppies (Poecilia reticulata) have been observed to forcefully copulate with females by trying to insert their gonopodium (male sex organ) into female's genital pores, whether or not they are accepting.
• Males of the ovoviviparous and viviparous species all have a modified anal fin, the andropodium, similar to the gonopodium of poecilid livebearers, used to deliver sperm to the females.
• After Regan (1913) established the principle of distinguishing poeciliid genera according to the shape of the gonopodium, both the sailfin and the short-finned molly were placed in the genus Mollienesia, the short-finned species being renamed Mollienesia gracilis.

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