Species of Greatest Conservation Need

1279 species
Taxonomic Group
Federal Status
State Status
Endemic

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Species of Greatest Conservation Need (Updated: 01/31/2024)
Common Name Scientifc Name Taxonomic Group Federal Status State Status Global Rank State Rank Endemic General Habitat Type(s)
southern hickorynut Obovaria arkansasensis Invertebrates Not Listed T GNR S1 False Clay, sand, and medium sized gravel substrates with low to moderate current; Neches, Sabine, and Cypress river basins
No Accepted Common Name Ochrotrichia capitana Invertebrates Not Listed Not Listed G1G3 S2? True Riparian, Riverine
No Accepted Common Name Ochrotrichia guadalupensis Invertebrates Not Listed Not Listed G1G2 S1? True Collected from Texas, Culberson County, Smith Spring, 2.4 km North Park headquarters, Guadalupe Mountains National Park on 5/20/1991 by R. Hood. A few more specimens were collected from the same park again in yrs 1991 and 1987. S. Harris and S. Moulton 1993.
No Accepted Common Name Oncopodura fenestra Invertebrates Not Listed Not Listed G2G3 S2? True Caves/Karst
No Accepted Common Name Orconectes maletae Invertebrates Not Listed Not Listed G3? S2 False Streams of varying sizes and bottoms, almost always with leaf litter
No Accepted Common Name Ormiscus albofasciatus Invertebrates Not Listed Not Listed GNR S2 False Forest, Woodland
No Accepted Common Name Ormiscus irroratus Invertebrates Not Listed Not Listed GNR S1 False Forest, Woodland
No Accepted Common Name Oxyelophila callista Invertebrates Not Listed Not Listed GNR SNR False Woodland
No Accepted Common Name Pachybrachis duryi Invertebrates Not Listed Not Listed GNR SNR False Shrubland, Woodland
No Accepted Common Name Pachybrachis n. sp. EGR 2 Invertebrates Not Listed Not Listed G1 S1 False Forest, Woodland
No Accepted Common Name Pachybrachis n. sp. EGR 6 Invertebrates Not Listed Not Listed G2G3 S2? False Caves/Karst
No Accepted Common Name Pachyschelus fisheri Invertebrates Not Listed Not Listed GNR S1 True Forest, Woodland
No Accepted Common Name Palaemonetes texanus Invertebrates Not Listed Not Listed G1G2 S1? True Collected in Comal and Hays counties (Middel Guadalupe and San Marcos watersheds).
No Accepted Common Name Paracyrtophyllus excelsus Invertebrates Not Listed Not Listed GNR SNR False Savanna/Open Woodland
No Accepted Common Name Paraholsingerius smaragdinus Invertebrates Not Listed Not Listed GNR S2 False Caves/Karst
Texas paralimnetis Paralimnetis texana Invertebrates Not Listed Not Listed G1 S1 True This species is reported from only two localities, both of which are artificial, human made wetlands in road side ditches; it is assumed to be a temporary wetland species like other large branchiopods.
No Accepted Common Name Paramexiweckelia ruffoi Invertebrates Not Listed Not Listed G1G2 S2 True Gravel bottom and lacks vegetation
No Accepted Common Name Paruroctonus williamsi Invertebrates Not Listed Not Listed GNR S1 True Barren/Sparse Vegetation
No Accepted Common Name Patera leatherwoodi Invertebrates Not Listed Not Listed G1 S1 False Woodland
daedelus shieldback katydid Pediodectes daedelus Invertebrates Not Listed Not Listed GNR SNR False Shrubland, Savanna/Open Woodland
Mitchell's sheildback katydid Pediodectes mitchelli Invertebrates Not Listed Not Listed GNR SNR False Shrubland, Savanna/Open Woodland
Pratt's sheildback katydid Pediodectes pratti Invertebrates Not Listed Not Listed GNR SNR False Shrubland, Savanna/Open Woodland
No Accepted Common Name Perdita atriventris Invertebrates Not Listed Not Listed GNR SNR False Grassland, Shrubland
Dolan Falls perdita Perdita dolanensis Invertebrates Not Listed Not Listed G1 S1 True Grassland, Shrubland
No Accepted Common Name Perdita fracticincta Invertebrates Not Listed Not Listed GNR SNR False Grassland, Shrubland