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
Procloeon distinctum No accepted common name Invertebrates Not Listed Not Listed G1G3Q S2? Yes
Protoptila arca San Marcos saddle-case caddisfly Invertebrates Not Listed Not Listed G1 S1 Yes
Protoptila balmorhea Balmorhea saddle-case caddisfly Invertebrates Not Listed Not Listed G1 S1 No
Pseudocentroptiloides morihari No accepted common name Invertebrates Not Listed Not Listed G2G3 S2? Yes
Pseudosubulina cheatumi Chisos foxsnail Invertebrates Not Listed Not Listed G1 S3 Yes
Pseudotryonia adamantina Diamond Y springsnail Invertebrates E
08/08/2013		 E
03/23/2015		 G1 S1 Yes
Psychopomporus felipi No accepted common name Invertebrates Not Listed Not Listed GNR S1 Yes
Pygarctia lorula No accepted common name Invertebrates Not Listed Not Listed G2G3 S2? Yes
Pyractomena vexillaria No accepted common name Invertebrates Not Listed Not Listed G1 SH Not Evaluated
Pyrgulopsis davisi Limpia Creek spring snail Invertebrates Not Listed T
03/30/2020		 G1 S1 Yes
Pyrgulopsis ignota Caroline's springs pyrg Invertebrates Not Listed T
03/30/2020		 G1 S1 Yes
Pyrgulopsis metcalfi Presidio County spring snail Invertebrates Not Listed T
03/30/2020		 G1 S1 No
Pyrgulopsis texana phantom springsnail Invertebrates E
08/08/2013		 E
03/23/2015		 G1 S1 Yes
Quadrula quadrula mapleleaf Invertebrates Not Listed Not Listed G5 S3 No
Rhadine austinica No accepted common name Invertebrates Not Listed Not Listed G1G2 S2 Yes
Rhadine exilis No accepted common name Invertebrates E
12/26/2000		 Not Listed G3 S1 Yes
Rhadine infernalis No accepted common name Invertebrates E
12/26/2000		 Not Listed G2G3 S1 Yes
Rhadine infernalis ewersi No accepted common name Invertebrates Not Listed Not Listed G2G3T1 S1 Yes
Rhadine infernalis infernalis No accepted common name Invertebrates Not Listed Not Listed G2G3T2T3 S3 Yes
Rhadine insolita No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Rhadine koepkei No accepted common name Invertebrates Not Listed Not Listed G1 S1 Yes
Rhadine noctivaga No accepted common name Invertebrates Not Listed Not Listed G1G2 S1 Yes
Rhadine persephone Tooth Cave ground beetle Invertebrates E
09/16/1988		 Not Listed G1G2 S1 Yes
Rhadine russelli No accepted common name Invertebrates Not Listed Not Listed G1G2 S3 Yes
Rhadine speca No accepted common name Invertebrates Not Listed Not Listed G2 S2 Yes