title: Description of eleven new species of the goblin spider genus Neoxyphinus Birabén, 1953 (Araneae, Oonopidae).
abstract: The spiders of the genus Neoxyphinus Birabén differ from those of other oonopid genera by the male endites with an api-cal, retrolateral excavation bearing a subapical tooth-like apophysis and, in females, by the ellipsoid genital atrium, with angular lateral margins. In this paper, eleven new species of the genus are described, mainly from northern South America: N. amazonicus Moss & Feitosa, sp. nov. (♂♀) from Colombia and Brazil; N. macuna Moss & Ruiz, sp. nov. (♂♀), N. tuparro Moss & Ruiz, sp. nov. (♂) and N. pure Moss & Bonaldo, sp. nov. (♂♀) from Colombia; N. yekuana Moss & Feitosa, sp. nov. (♂♀), N. trujillo Moss & Bonaldo, sp. nov. (♂♀), N. yacambu Moss & Feitosa, sp. nov. (♂) and N. saarineni Moss & Bonaldo, sp. nov. (♂) from Venezuela; N. inca Moss & Ruiz, sp. nov. (♂♀) from Peru; N. beni Moss & Feitosa, sp. nov. (♂♀) from Bolivia; and N. coca Moss & Feitosa, sp. nov. (♂♀) from Ecuador.
authors.affiliation: Curso de Pós-Graduação em Zoologia, Universidade Federal do Pará/Museu Paraense Emílio Goeldi.; Email: daniella_moss@hotmail.com.
authors.forename: Daniella F
authors.initials: DF
authors.lastname: Moss
authors.affiliation: Curso de Pós-Graduação em Zoologia, Universidade Federal do Pará/Museu Paraense Emílio Goeldi.; Email: nithomasmateus@gmail.com.
authors.forename: Níthomas M
authors.initials: NM
authors.lastname: Feitosa
authors.affiliation: Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Campus de Pesquisa, Av. Perimetral, 1901, 66040-170, Belém, PA, Brazil.; Email: bonaldo@museu-goeldi.br.
authors.forename: Alexandre B
authors.initials: AB
authors.lastname: Bonaldo
authors.affiliation: Instituto de Ciências Biológicas, Universidade Federal do Pará, Rua Augusto Corrêa, 01, CEP 66075-110, Belém, PA, Brazil.; Email: gustavoruiz86@hotmail.com.
authors.forename: Gustavo R S
authors.initials: GR
authors.lastname: Ruiz
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D005260:Female; D008297:Male; D009929:Organ Size; D013020:South America; D013112:Spiders / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development