Species of Greatest Conservation Need
1124 species
| Scientifc Name | Common Name | Taxonomic Group | Federal Status | State Status | Global Rank | State Rank | Endemic |
|---|---|---|---|---|---|---|---|
| Cisthene conjuncta | No accepted common name | Invertebrates | Not Listed | Not Listed | G1Q | S1 | Not Evaluated |
| Comaldessus stygius | Comal Springs diving beetle | Invertebrates | Not Listed | Not Listed | G1 | S1 | Yes |
| Cordulegaster sarracenia | sarracenia spiketail | Invertebrates | Not Listed | Not Listed | G3 | SNR | Not Evaluated |
| Cryptocephalus downiei | No accepted common name | Invertebrates | Not Listed | Not Listed | G1 | SH | Not Evaluated |
| Cyclonaias necki | Guadalupe orb | Invertebrates | E 07/05/2024 |
E 07/05/2024 |
G1 | S2 | Yes |
| Cyclonaias nodulata | wartyback | Invertebrates | Not Listed | Not Listed | G4 | S2 | No |
| Cyclonaias petrina | Texas pimpleback | Invertebrates | E 07/05/2024 |
E 07/05/2024 |
G1 | S1 | Yes |
| Cyclonaias pustulosa | pimpleback | Invertebrates | Not Listed | Not Listed | G5 | SNR | No |
| Cyrtonaias tampicoensis | Tampico pearlymussel | Invertebrates | Not Listed | Not Listed | G5 | S4 | No |
| Daedalochila hippocrepis | horseshoe liptooth | Invertebrates | Not Listed | Not Listed | G1 | S2 | Not Evaluated |
| Danaus plexippus plexippus | migratory monarch butterfly | Invertebrates | C 12/17/2020 |
Not Listed | G4T3 | SNR | Not Evaluated |
| Dendrocephalus acacioidea | acacia fairy shrimp | Invertebrates | Not Listed | Not Listed | G1 | S1 | Yes |
| Dinocheirus cavicola | No accepted common name | Invertebrates | Not Listed | Not Listed | G2G3 | S2 | Yes |
| Diplocentrus diablo | No accepted common name | Invertebrates | Not Listed | Not Listed | GNR | S2 | No |
| Eidmannella bullata | No accepted common name | Invertebrates | Not Listed | Not Listed | G1G2 | S1 | Yes |
| Eidmannella delicata | No accepted common name | Invertebrates | Not Listed | Not Listed | G1G2 | S1 | Yes |
| Eidmannella nasuta | No accepted common name | Invertebrates | Not Listed | Not Listed | G1G2 | S1 | Yes |
| Eidmannella reclusa | No accepted common name | Invertebrates | Not Listed | Not Listed | G1G2 | S2 | Yes |
| Ereboporus naturaconservatus | No accepted common name | Invertebrates | Not Listed | Not Listed | GNR | S1 | Yes |
| Erynnis martialis | mottled duskywing | Invertebrates | Not Listed | Not Listed | G3 | S1 | Not Evaluated |
| Euchemotrema leai cheatumi | palmetto pill snail | Invertebrates | Not Listed | Not Listed | G5T1 | S1 | Not Evaluated |
| Euglandina texasiana | glossy wolfsnail | Invertebrates | Not Listed | Not Listed | G1G2 | S3 | Not Evaluated |
| Euphyes bayensis | bay skipper | Invertebrates | Not Listed | Not Listed | G2G3 | S1 | No |
| Euproserpinus wiesti | Wiest's sphinx moth | Invertebrates | Not Listed | Not Listed | G3 | S1 | Not Evaluated |
| Fallicambarus devastator | Texas prairie crayfish | Invertebrates | Not Listed | Not Listed | G3 | S2? | Yes |