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other members of the genus are unclear. Grutas delCocona is also inhabited by a probably undescribedspecies of the genus Phrynus. Paraphrynus chiztunhas been observed running across the walls of Grutasdel Cocona near the end of the cave. Phrynus sp. wastaken from flowstone and walls and beneath rocksmuch closer to the cave entrance. Paraphrynus chiztunhas reduced and depigmented eyes, reduced oculartubercle, depigmented body, and elongated appendages.Paraphrynus reddelli MullinexParaphrynus reddelli Mullinex, 1979 :267-269, fig. 1-7.Type-locality.-Act6n Loltun, 7 km SSW Oxkutzcab,Yucatan, Mexico.Distribution.-Known only from the type-locality.See Fig. 25.Discussion.-This is a completely eyeless species;it is very different in many respects from other describedspecies of Paraphrynus and its relationshipsare uncertain.Paraphrynus velmae MullinexParaphrynus velmae Mullinex, 1975:1,9,26-28,40,65,66,67, 78, fig. 25-26, 38.Type-locality.-S6tano de Tlamaya, San Luis Potosi,Mexico.MEXICOGUATEMALA\r'r-'...;/./rr'Fig. 25.-Distrihution of troglobitic amblypygids of the families Charontidae and Phrynidae: 1, Paraphrynus baeops;2, P. velmae; 3, P. chiztun; 4, P. chacmool; 5, P. reddelli; 6, Paraphrynus sp.; 7, Charontidae gen. et sp.132