A revision of the spider genera Lygromma and Neozimiris (Araneae, Gnaphosidae). American Museum novitates ; no. 2598

Abstract

"The 11 known species of Lygromma and eight of Neozimiris are diagnosed and described. Relationships between the classical families Gnaphosidae and Prodidomidae are examined, and on the basis of shared, derived characters it is concluded that the prodidomids are the sister group of the Anagraphinae (Gnaphosidae) and must therefore be relegated to subfamilial status in the Gnaphosidae. The genus Pseudolygromma Berland is placed as a junior synonym of Lygromma. Tivodrassus Chamberlin and Ivie is assigned to the Anagraphinae; Zimiromus Banks is transferred from the Anagraphinae to the Echeminae. The first known troglobitic gnaphosid, Lygromma gertschi, is described from Jamaica; its adaptations to cave life include the loss of functional eyes, elongation of the legs, tarsal trichobothria, and spinnerets, and the loss of teeth on the tarsal claws. Thirteen other new species are described: L. huberti from Venezuela; L. peckorum, L. quindio, and L. kochalkai from Colombia; L. dybasi from Panama and Costa Rica; L. peruviana from Peru; N. crinis from Mexico; N. chickeringi from Panama; N. exuma from the Bahama Islands; N. nudas from Puerto Rico; N. levii from the Netherlands Antilles; and N. pinta and N. pinzon from the Galapagos Islands"--P. [1].