Species of Greatest Conservation Need

1124 species
Taxonomic Group
Federal Status
State Status
Endemic

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Species of Greatest Conservation Need (Approved On: 03/18/2024; Data Updated: 06/16/2025)
Scientifc Name Common Name Taxonomic Group Federal Status State Status Global Rank State Rank Endemic
Stygobromus bifurcatus bifurcated cave amphipod Invertebrates Not Listed Not Listed G3G4 S3 Yes
Stygobromus dejectus Cascade Cave amphipod Invertebrates Not Listed Not Listed G1G2 S1 Yes
Stygobromus flagellatus Ezell's Cave amphipod Invertebrates Not Listed Not Listed G2G3 S3 Yes
Stygobromus hadenoecus Devil's Sinkhole amphipod Invertebrates Not Listed Not Listed G1G2 S2 Yes
Stygobromus limbus Border Cave amphipod Invertebrates Not Listed Not Listed G1G2 S2S4 Yes
Stygobromus pecki Peck's Cave amphipod Invertebrates E
12/18/1997		 E
11/01/2000		 G1G2 S1 Yes
Stygobromus reddelli Reddell's Cave amphipod Invertebrates Not Listed Not Listed G1G2 S1 Yes
Stygoparnus comalensis Comal Springs dryopid beetle Invertebrates E
01/20/1998		 E
04/27/2012		 G1G2 S1 Yes
Stygopyrgus bartonensis No accepted common name Invertebrates Not Listed Not Listed G1 S1 Yes
Susperatus tonkawa No accepted common name Invertebrates Not Listed Not Listed G1 SNR Not Evaluated
Taeniopteryx starki Texas willowfly Invertebrates Not Listed Not Listed G1 S1 Yes
Tartarocreagris altimana No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris amblyopa No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris attenuata No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris domina No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris grubbsi No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris hoodensis No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris infernalis No accepted common name Invertebrates Not Listed Not Listed G2G3 S1 Yes
Tartarocreagris intermedia No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris proserpina No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Tartarocreagris reyesi No accepted common name Invertebrates Not Listed Not Listed GNR S1 Yes
Tartarocreagris texana Tooth Cave pseudoscorpion Invertebrates E
09/16/1988		 Not Listed G1G2 S1 Yes
Texamaurops reddelli Kretschmarr Cave mold beetle Invertebrates E
09/16/1988		 Not Listed G1G2 S1 Yes
Texanobathynella bowmani No accepted common name Invertebrates Not Listed Not Listed GNR S2S4 Yes
Texapyrgus longleyi striated hydrobe Invertebrates Not Listed Not Listed G1 S1 Yes