The Luzon fruit bat (Otopteropus cartilagonodus) is a species of megabat in the family Pteropodidae.

[2] Luzon Fruit bats are identifiable by their ears, which are marked by red thickenings.

[5] The overall size of the skull is found to be larger in males, but females have a more heightened braincase.

[5] Luzon Fruit Bats are one of two species in the family Pteropodidae that have undergone radiation in Southeast Asia.

[2] Male members of the order Chiroptera have a wide morphological variation of primary reproductive structures.

[2] Additionally, these male bats have few spermatozoa in both their testes and epididymis, indicating that much of the sperm in not fully mature.