''Euphrictus spinosus'' is a

tarantula Tarantulas comprise a group of large and often hairy spiders of the family Theraphosidae. , 1,040 species have been identified, with 156 genera. The term "tarantula" is usually used to describe members of the family Theraphosidae, although ...

(family Theraphosidae), subfamily Selenogyrinae, first described by A.S. Hirst in 1908. It is only known from the male, and from the Dja River,

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...

Description

Only the male is known. ''Euphrictus spinosus'' is distinguished by having 7–8 spines on the tibia of the first leg; having a yellowish

carapace A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tor ...

and a brown abdomen with long bright yellow hairs; and a long tapering embolus with a slight twist in the middle. Its body is 15.5 mm long and it has a

stridulating Stridulation is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fish, snakes and spiders. The mech ...

organ between its chelicera. It also lacks a clypeus.

References

Endemic fauna of Cameroon Invertebrates of Cameroon Theraphosidae Spiders of Africa Spiders described in 1908 {{Theraphosidae-stub