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an intromittent organ in a sentence

1. In caecilians, fertilisation is internal, the male extruding an intromittent organ, the phallodeum, and inserting it into the female cloaca.

2. The modification of the anal fin into an intromittent organ (in internal fertilizers) as well as accessory structures of the reproductive apparatus (in both internal and external fertilizers) have been described in species belonging to 11 different families.

3. In most anurans, the males deposit sperm onto the eggs as they are being laid, however males of the genus Ascaphus possess an intromittent organ, unique among anurans, for internal fertilization.

4. This involves the male inseminating the female with an intromittent organ.

5. The male has specialized anal rays which are greatly elongated and fused into a tube called a gonopodium associated with the sperm duct which he uses as an intromittent organ to deliver sperm to the female.

6. The male has specialized anal rays which are greatly elongated and fused into a tube called a gonopodium associated with the sperm duct which he uses as an intromittent organ to deliver sperm to the female.

7. The penis of the Opiliones (harvestmen) is an intromittent organ that is not present in other arachnids.

8. However, there is no evidence of an intromittent organ, and the exact mechanism of insemination is unknown.

9. Other species of fish are oviparous and have internal fertilization aided by pelvic or anal fins that are modified into an intromittent organ analogous to the human penis.

10. An intromittent organ is a general term for an external organ of a male organism that is specialized to deliver sperm during copulation.

11. For the 3% of birds with an intromittent organ, copulation occurs through brief insertion of the male organ into the vagina before ejaculation.

12. As a genus Starksia is distinguished from other labrisomids by their scaled bodies, two obvious soft rays in the pelvic fin and the male's have an intromittent organ which is near to or attached to the first spine of their anal fins, which is also somewhat separated from the fin.

13. Adult males can be told from females by the presence of a gonopodium, an extended rod-shaped anal fin that acts as an intromittent organ to introduce sperm into the female during mating.

14. The males have the anterior rays, normally the third to fifth rays, in the anal fin elongated to form an intromittent organ called the gonopodium.