Species of Greatest Conservation Need
1124 species
| Scientifc Name | Common Name | Taxonomic Group | Federal Status | State Status | Global Rank | State Rank | Endemic |
|---|---|---|---|---|---|---|---|
| Fallicambarus houstonensis | Houston burrowing crayfish | Invertebrates | Not Listed | Not Listed | G2 | S3 | Not Evaluated |
| Fallicambarus kountzeae | Big Thicket burrowing crayfish | Invertebrates | Not Listed | Not Listed | G2 | S3 | Not Evaluated |
| Farrodes mexicanus | No accepted common name | Invertebrates | Not Listed | Not Listed | G1G2 | SNR | Not Evaluated |
| Faxonella blairi | No accepted common name | Invertebrates | Not Listed | Not Listed | G4G5 | SNR | Not Evaluated |
| Fusconaia askewi | Texas pigtoe | Invertebrates | Not Listed | T 01/17/2010 |
G2? | S2S3 | No |
| Fusconaia chunii | Trinity pigtoe | Invertebrates | Not Listed | T 03/30/2020 |
GNR | S1 | Yes |
| Fusconaia iheringi | Balcones spike | Invertebrates | E 07/05/2024 |
E 07/05/2024 |
G1 | SNR | Yes |
| Fusconaia mitchelli | false spike | Invertebrates | E 07/05/2024 |
E 07/05/2024 |
G1 | S1 | No |
| Gammarus hyalelloides | diminutive amphipod | Invertebrates | E 08/08/2013 |
E 03/23/2015 |
G1 | S1 | Yes |
| Gammarus pecos | Pecos amphipod | Invertebrates | E 08/08/2013 |
E 03/23/2015 |
G1 | S1 | Yes |
| Gomphus gonzalezi | Tamaulipan clubtail dragonfly | Invertebrates | Not Listed | Not Listed | G2 | S2 | Not Evaluated |
| Haideoporus texanus | Edwards Aquifer diving beetle | Invertebrates | Not Listed | Not Listed | G1G2 | S1 | Yes |
| Heliastus subroseus | No accepted common name | Invertebrates | Not Listed | Not Listed | G2G3 | S2? | Yes |
| Hemileuca chinatiensis | Chinati sheepmoth | Invertebrates | Not Listed | Not Listed | G3 | S1S3 | Not Evaluated |
| Hesperia ottoe | Ottoe skipper | Invertebrates | Not Listed | Not Listed | G3 | SNR | Not Evaluated |
| Heterelmis comalensis | Comal Springs riffle beetle | Invertebrates | E 01/20/1998 |
E 04/27/2012 |
G1 | S1 | Not Evaluated |
| Heterobrenthus texanus | No accepted common name | Invertebrates | Not Listed | Not Listed | GNR | S1 | Not Evaluated |
| Holospira hamiltoni | Hamilton holospira | Invertebrates | Not Listed | Not Listed | G1 | S1 | Not Evaluated |
| Holospira mesolia | No accepted common name | Invertebrates | Not Listed | Not Listed | G1 | S2 | Not Evaluated |
| Holospira riograndensis | Rio Grand holospira | Invertebrates | Not Listed | Not Listed | G1 | S1 | Not Evaluated |
| Holospira yucatanensis | Bartsch holospira | Invertebrates | Not Listed | Not Listed | G1 | S1 | Not Evaluated |
| Humboldtiana cheatumi | Davis Mountains threeband | Invertebrates | Not Listed | Not Listed | G2 | S2 | Not Evaluated |
| Humboldtiana ferrissiana | Mitre Peak threeband | Invertebrates | Not Listed | Not Listed | G2 | S1 | Not Evaluated |
| Humboldtiana fullingtoni | Capote threeband | Invertebrates | Not Listed | Not Listed | G1 | SU | Not Evaluated |
| Humboldtiana hoegiana praesidii | San Carlos Threeband | Invertebrates | Not Listed | Not Listed | G3T3 | S3 | Not Evaluated |