Cynocephalus volans (Originally Lemur volans Linnaeus 1758, Boddaert 1768; body length:33–38 cm + tail length: 17–27 cm) is the extant and nocturnal Philippine Flying Lemur. It is considered a member of the order Dermoptera, a clade with only two genera. The other (as yet untested) genus, Galeopterus, has longer, thinner arms. Here in the LRT Cynocephalus nests with Indri, a large lemur from Madagascar.

Extradermal membranes stretching from the chin to the thumb, between the fingers, to the toes, between the toes and to the tail tip surround Cynocephalus. These membranes extend glides up to 100m between trees. Rather than resting inverted, like bats, Colugos climb tree trunks right side up. Like lemurs, they turn as they leap in order to get into a gliding configuration.

Galeopterus variegatus (Originally Galeopithecus variegatus Audebert 1799, Thomas 1908) the extant Sunda flying lemur, has longer, thinner arms.

Audebert JB 1799. Histoire Naturelle Des Singes Makis. Paris: Desray.

Boddaert P 1768. Dierkundig Mengelwerk in Het Welke de Nieuwe of nog Duistere Zoorten Van Dieren. Volume 2. Abraham van Paddenburg en J. Van Schoonhoven.

Gmelin JF 1788. Caroli a Linné systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima tertia, aucta, reformata. - pp. [1-12], 1-500. Lipsiae. (Beer).

Jackson SM and Thorington RW Jr 2012. Gliding mammals. Taxonomy of living and extinct species. Smithsonian Contributions to Zooloogy 638: 117 pp.

Linnaeus C 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.

Ogilby W 1838. Proc. Zool. Soc. Lond., 1838: 6. Type Locality: Zanzibar (designated by Thomas, 1917 b:48) .

Thomas O 1908. The Nomenclature of the Flying Lemurs. Annals and Magazine of Natural History, 8th ser., 1:252–255.

wiki/Cynocephalus
wiki/Galeopterus
wiki/Indri
wiki/Otolemur