Main Ref. | Gilmore, R.G., 1993 |
Mode | dioecism |
Fertilization | internal (oviduct) |
Mating type | monogamy: |
Spawning frequency | |
Spawning aggregation | Ref. |
Batch spawner | Ref. |
Reproductive guild |
bearers internal live bearers |
Parental Care | maternal |
Description of life cycle and mating behavior | Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). With up to 18 young in a litter (Ref. 26346). Gives birth to litters of 4-25 (usually 10-18) pups after a gestation period of 15-18 months; reproduces every 3 years (Ref.58048). Size at birth between 60 and 70 cm (Ref. 247). Distinct pairing with embrace (Ref. 205). |
Search for more references on reproduction | Scirus |