A new species of the spider genus Tekellina Levi, 1957 from Chile, with a broadened definition of the family Synotaxidae (Arachnida, Araneae) Author Ramírez, Martín J. Author Magalhaes, Ivan L. F. Author Pizarro-Araya, Jaime Author Ballarin, Francesco Author Marusik, Yuri M. Author Eskov, Kirill Yu. text Zoologischer Anzeiger 2022 2022-11-30 301 76 90 http://dx.doi.org/10.1016/j.jcz.2022.08.005 journal article 305641 10.1016/j.jcz.2022.08.005 195f4f66-e5ad-4e66-88a8-561a2b032399 1873-2674 10375048 Synotaxidae Simon, 1894 Synotaxeae Simon 1894: 494 ( type genus Synotaxus Simon 1894 ). Synotaxidae, Forster et al., 1990 . Synotaxidae, Dimitrov et al., 2017: 241 . Relimited to include only Synotaxus . Remarks: Herein we expand the boundaries of the family on the base of the results of our molecular analysis. Consequently, we include in Synotaxidae the genera Gaucelmus , Hamus , Nescina , Synotaxus , and Tekellina . Revised diagnosis: Synotaxidae is similar to Physoglenidae by having an integral conductor and a depressed area on the retrolateral margin of the cymbium, but such depression is wide in Synotaxidae ( Figs. 9D and 12C , Ballarin and Li 2015 : Figs. 1D , 3D ), and a narrow furrow in Physoglenidae . Physoglenids can be further distinguished by having a dorsally excavated paracymbium ( Fig. 12E , Forster et al., 1990 : Figs. 62, 155, 161, 301, 338). Some Synotaxidae are similar to Nesticidae by having a projected paracymbium, but nesticids can be distinguished by the more complex paracymbium with several projections extending forward.