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the cave and in general association with Leptonetalimpida, Psilochorus delicatus, and Cryptocellus reddelli.Nicholas (1962) listed Spermophila (sic) speophilaChamberlin and Ivie from caves in Yucatan asa troglobite. This species, now placed in Pholcophora,should be considered a troglophile.Pholcophora gruta GertschPholcophora gruta Gertsch, 1971a:48, 78, fig. 95-96,137-138; Reddell, 1973a:33, 39; Brignoli, 1974b:223; Hoffmann, 1976:26.Type-Iocality.-Grutas de Juxtlahuaca, 6.5 km Nof Colotlipa, Guerrero, Mexico.Distribution.-Known only from the type-locality.See Fig. 42.Discussion.-This is a pale, eyeless species.Pholcophora pearsei (Chamberlin and Ivie)Anopsicus pearsei Chamberlin and Ivie, 1938b:123,130, 132, fig. 17-18; Pearse, 1945:156; Nicholas,1962:181; Gertsch, 1971a:47, 76; Reddell,1971b:31; Hoffmann, 1976:84; Gertsch, 1977b:103, ll2.Anopsicus: Pearse, 1945:155; Brignoli, 1972: 137,138,139; Brignoli, 1974b:219, 223.Pholcophora (Anopsicus) pearsei: Gertsch, 1971a:48.Pholcophora pearsei: Gertsch, 1971a:77; Brignoli,1974b:223; Hoffmann, 1976:26, 84; Gertsch,1977b:ll5, ll6, fig. 47-49; Reddell, 1977b:232,239,240,253,259,260,261.Type-Iocality.-Oxolodt Cave (=Cueva Oxolodt),Kaua, Yucatan, Mexico.Distribution.-Known from caves in Quintana Rooand Yucatan. See Fig. 42.Records.-Quintana Roo: Cenote de Las Ruinasand Cenote de Santo Domingo; Yucatan: Cueva Escondida,Actlin Kaua, and Cueva Oxolodt.Discussion.-This small, eyeless species is usuallyfound beneath rocks in moist areas.Psilochorus delicatus GertschPsilochorus delicatus Gertsch, 1971a:76, fig. 90-91;Hoffmann, 1976:27; Reddell, 1977a:90.Type-Iocality.-Cueva de los Riscos, Sierra deIndia, 6.5 km S of Mapimi, Durango, Mexico.Distribution.-Known only from the type-locality.See Fig. 43.Discussion.-This small pale species with reducedeyes is known only from a single female and two immaturespecimens. It was collected from a small sideroom near the end of the cave. Nicholas (1962)listed Pholcus cordatus Bilimek from Grutas de Cacahuamilpa,Guerrero, as a troglobite. This species,now placed in Psilochorus, is a troglophile.Psilochorus diablo GertschPsilochorus new species: Spieth, 1950:31.Psilochorus sp.: Reddell, 1971b:32 (Cueva del Diablorecord only).Psilochorus diablo Gertsch, 1971a:72, 73, fig. 77-81;Reddell, 1973a:39; Hoffmann, 1976:27; Reddell,1977a:85.Type-locality.-Cueva del Diablo, 1 km W of Salaices,35 km N of Parral, Chihuahua, Mexico.Distribution.-Known only from the type-locality.See Fig. 43.Discussion.-This small, pale species has reducedeyes and is probably a troglobite restricted to thecave habitat by the surrounding desert.Family ScytodidaeThe spiders of the scytodid genus Loxoscelesabound in the caves of Mexico, Guatemala, andBelize (Chamberlin and Ivie, 1938b; Gertsch, 1958,1973b) (see Fig. 44). A total of 13 species of thisgenus is known from caves: L. aranea Gertsch fromQueretaro; L. aurea Gertsch from Durango; L. belliGertsch from Coahuila; L. bolivari Gertsch and L.luteola Gertsch from Nuevo Leon; L. colima Gertschfrom Colima; L. devia Gertsch and l\Iulaik from Tamaulipas;L. misteca Gertsch from Guerrero; L. tehuanaGertsch from Chiapas; L. tenango Gertschfrom Hidalgo; L. valdosa Gertsch from San Luis PotOSIand Tamaulipas; L. yucatana Chamberlin andIvie from Campeche, Quintana Roo, and Yucatan,Mexico; Cayo District, Belize; and EI Peten, Guatemala;and L. guatemala Gertsch from Alta Verapaz,Guatemala. These spiders are usually found in drierareas of the cave. They live in small tangled websamong loose dry breakdown and are frequently presentin large numbers. Although several species"of thegenus Scytodes are known from Mexican caves, noneshow signs of cave adaptation. Nicholas (1962) liststwo Yucatan cave species, Scytodes itzana Chamberlinand Ivie and S. meridana Chamberlin and Ivie astroglobites; these species are probably troglophiles.Scytodes fusca Walckenaer is also frequently found incaves in Yucatan. Brignoli (1976) has reviewed theworld scytodid fauna.Family TelemidaeThe family Telemidae is known from southernEurope, Africa, the western United States, and Guatemala.A single species, Telema mayana Gertsch, is154