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typical; one spinelike seta on hand. Fixed chelalfinger with 18-23 spaced macrodenticles and 9-12interspersed microdenticles; movable finger with 7-9spaced macrodenticles, 5-8 interspersed microdenticles,and 15-18 low, rounded teeth proximally.Sensillum on movable finger proximal to lastmacrodenticle.Legs relatively robust; leg IV with entire femur2.3-2.5 and tibia 4.0-4.3 times as long as deep.Long tactile setae on tibia and both tarsi of leg IV.Measurements (mm).-Figures given first forholotype followed in parentheses by ranges for theallotype and paratypes. Body length 1.08(1.08-1.41). Carapace length 0.385 (0.355-0.45).Chelicera 0.285 (0.27-0.34). Palpal femur 0.415(0.38-0.47) by 0.095 (0.085-0.11); tibia 0.165(0.165-0.21) by 0.105 (0.095-0.12); chela 0.625(0.585-0.725) by 0.13 (0.12-0.16); hand 0.255(0.23-0.26) by 0.135 (0.1260.16); movable finger0.415 (0.37-0.46) long. Leg IV: entire femur 0.37(0.34-0.43) by 0.16 (0.15-0.17); tibia 0.265(0.235-0.31) by 0.06 (0.55-0.75).Etymology.- The new species is named texanusfor the state in which it has been found.Remarks.-This species is very similar to T.floridensis Malcolm and Muchmore (1985), but canbe differentiated easily from that species by the occurrenceof 6 setae on tergite 4 and the lack of a setaon the apical projection of coxa I. Although it hasbeen found only in caves it is not much adapted forcavemicolous existence; the only modification appearsto be the slight reduction in development ofthe posterior eyes. It is at best a troglophile andperhaps only accidental in caves. No epigeanrepresentatives of thi~ genus have been reportedfrom Texas, but this fact may be due simply to thepaucity of collections of the litter dwelling fauna ofthe state.Also at hand are 4 representatives of Tyrannochthoniusfrom Arrowhead Cave, Hays County,Texas, 1983 (A.G. Grubbs), which probably belongto this species. Unfortunately, these specimens areso broken and dismembered that they cannot beidentified with certainty./134Figs. 1-4.-1-2, Tyrannochlhonius lexanus, new species, holotype male: I, epistome and flanking setae on carapace; 2, left palp,dorsal view; 3-4, Tanarocreagris lexana (Muchmore), male from Amber Cave: 3, chaetotaxy of genital opercula; 4, internal genitalia,ventral view.b130