Canga, Dasilva, Marcio Bernardino, Pinto-Da-Rocha, Ricardo & Giribet, Gonzalo, 2010

Dasilva, Marcio Bernardino, Pinto-Da-Rocha, Ricardo & Giribet, Gonzalo, 2010, Canga renatae, a new genus and species of Cyphophthalmi from Brazilian Amazon caves (Opiliones: Neogoveidae), Zootaxa 2508, pp. 45-55 : 47

Canga gen. nov.

Diagnosis: Small Cyphophthalmi without eyes or eye lenses. Ozophores of type 2 ( Juberthie, 1970), situated laterally above carapace margin, opening subterminally. No opisthosomal glands on the sternal and anal region of males, as opposed to Huitaca and Metagovea . Chelicerae slender, not of the protruding type; basal article lacking a dorsal crest, with a single ventral process. Tarsi without a distinct solea on leg I; claws of legs I and II with a ventral row of teeth—while a dentate claw II is found in other neogoveids and in troglosironids, the dentate claw I is unique to Canga among Cyphophthalmi; claws of legs III and IV smooth. Adenostyle conspicuous, of the lamelliform type, located near the base of the tarsus IV. Coxae of legs I and II free, coxa III fused to coxa IV, a character only shared with Metasiro among the known neogoveids. Sternites 8 and 9 and tergite IX of opisthosoma fused into a corona analis, as is typical of neogoveids, with the exception of Metasiro , and even some Pettalus (Pettalidae) . Anal plate and anal region of males without modifications. Hansen’s organ absent.

The unique combination of a dentate claw on legs I, lack of opisthosomal gland openings, free coxae of legs II and a corona analis easily distinguishes Canga from any other cyphophthalmid genus.

Included species: C. renatae sp. nov., the type species of the genus.

Etymology: A Portuguese noun, feminine in gender, referring to the ironstone outcrops, locally called canga , where the caves in which the specimens were collected are located (see Jacobi et al., 2007).