No Accepted Common Name |
Perdita tricincta |
Invertebrates |
Not Listed |
Not Listed |
GNR |
SNR |
False |
Grassland, Shrubland |
No Accepted Common Name |
Petrophila daemonalis |
Invertebrates |
Not Listed |
Not Listed |
GNR |
SNR |
False |
Grassland, Shrubland |
Salt Playa Fairy Shrimp |
Phallocryptus sublettei |
Invertebrates |
Not Listed |
Not Listed |
G2 |
S3 |
False |
Saline playa lakes ranging from a few meters to a kilometer in diameter; usually very shallow with depth of water a function of rainfall, humidity, and basin structure; dry during summer and filling with fall rains (Rogers, 2003; Lang and Rogers, 2002). |
No Accepted Common Name |
Phoenicobiella schwarzii |
Invertebrates |
Not Listed |
Not Listed |
GNR |
S2 |
False |
Forest, Woodland |
No Accepted Common Name |
Phreatodrobia conica |
Invertebrates |
Not Listed |
Not Listed |
G1 |
S2 |
True |
Caves/Karst |
crowned cavesnail |
Phreatodrobia coronae |
Invertebrates |
Not Listed |
T |
G1G2 |
S2 |
True |
Caves/Karst |
mimic cavesnail |
Phreatodrobia imitata |
Invertebrates |
Not Listed |
Not Listed |
G1 |
S1 |
True |
Subaquatic; only known from two wells penetrating the Edwards Aquifer |
No Accepted Common Name |
Phreatodrobia micra |
Invertebrates |
Not Listed |
Not Listed |
G2G3 |
S2 |
True |
Caves/Karst |
No Accepted Common Name |
Phreatodrobia plana |
Invertebrates |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Caves/Karst |
No Accepted Common Name |
Phreatodrobia punctata |
Invertebrates |
Not Listed |
Not Listed |
G2 |
S1 |
True |
Caves/Karst |
No Accepted Common Name |
Phreatodrobia rotunda |
Invertebrates |
Not Listed |
Not Listed |
G1G2 |
S2 |
True |
Caves/Karst |
No Accepted Common Name |
Phylocentropus harrisi |
Invertebrates |
Not Listed |
Not Listed |
G1G2 |
S1 |
False |
Lotic systems, but specifics unknown |
Chisos skipperling |
Piruna haferniki |
Invertebrates |
Not Listed |
Not Listed |
G2G3 |
S1? |
False |
Open oak/pine woodland, thorn scrub below oak zone, nectarivore/herbivore, adults in genus nectar and drink from damp soil; larva of subfamily feed on grasses or sedges, some very specialized, caterpillars of other Piruna eat leaves of broad-leaved grasses, including grama grass Bouteloua; diurnal, hibernates/aestivates; adults fly from March to possibly October |
No Accepted Common Name |
Platyomus flexicaulis |
Invertebrates |
Not Listed |
Not Listed |
GNR |
SNR |
False |
Forest, Woodland |
No Accepted Common Name |
Plauditus texanus |
Invertebrates |
Not Listed |
Not Listed |
G2G3 |
S1? |
False |
Larvae are associated with small to medium limestone cobble and macrophytes in shallow riffles of clear, cool, alkaline streams (P. McCafferty, personal communication, December 2003). |
Louisiana pigtoe |
Pleurobema riddellii |
Invertebrates |
Not Listed |
T |
G1G2 |
S1 |
False |
Occurs in small streams to large rivers in slow to moderate currents in substrates of clay, mud, sand, and gravel. Not known from impoundments (Howells 2010f; Randklev et al. 2013b; Troia et al. 2015). [Mussels of Texas 2019] |
No Accepted Common Name |
Pogonomyrmex bigbendensis |
Invertebrates |
Not Listed |
Not Listed |
GNR |
SNR |
False |
Barren/Sparse Vegetation |
Comanche harvester ant |
Pogonomyrmex comanche |
Invertebrates |
Not Listed |
Not Listed |
G2G3 |
S2 |
True |
Barren/Sparse Vegetation |
Monahans lined june beetle |
Polyphylla monahansensis |
Invertebrates |
Not Listed |
Not Listed |
GNR |
S2 |
False |
Barren/Sparse Vegetation |
No Accepted Common Name |
Polyphylla pottsorum |
Invertebrates |
Not Listed |
Not Listed |
GNR |
S1 |
False |
Barren/Sparse Vegetation |
Texas hornshell |
Popenaias popeii |
Invertebrates |
LE |
E |
G1 |
S1 |
False |
Occurs in small streams to large rivers in slow to moderate current, often residing in rock crevices, travertine shelves, and under large boulders, where small-grained material, such as clay, silt, or sand gathers. Can also occur in riffles that are clean swept of soft silt; not known from reservoirs (Carman 2007; Inoue et al. 2014; Randklev et al. 2017b; Randklev et al. forthcoming). [Mussels of Texas 2019] |
Texas heelsplitter |
Potamilus amphichaenus |
Invertebrates |
Not Listed |
T |
G1G3 |
S1 |
False |
Occurs in small streams to large rivers in standing to slow-flowing water; most common in banks, backwaters and quiet pools; adapts to some reservoirs. Often found in soft substrates such as mud, silt or sand (Howells et al. 1996; Randklev et al. 2017a). [Mussels of Texas 2019] |
Salina mucket |
Potamilus metnecktayi |
Invertebrates |
Not Listed |
T |
G1 |
S1 |
False |
Occurs in medium to large rivers, where it may be found in substrates composed of various combinations of mud, sand, gravel, and cobble, as well as under rocks. It occurs in areas with slow to moderate current, most often in stable littoral habitats dominated by boulder or bedrock habitat; not known from reservoirs (Randklev et al. 2017b; Randklev et al. forthcoming). [Mussels of Texas 2019] |
Brazos heelsplitter |
Potamilus streckersoni |
Invertebrates |
Not Listed |
T |
GNR |
SNR |
True |
Reported from streams, but not far into the headwaters, to large rivers, and some reservoirs. In riverine systems occurs most often in nearshore habitats such as banks and backwater pools but occasionally in mainchannel habitats such as riffles. Typically found in standing to slow-flowing water in soft substrates consisting of silt, mud or sand but occasionally in moderate flows with gravel and cobble substrates (Randklev et al. 2014b,c; Tsakiris and Randklev 2016b; Smith et al. 2019) [Mussels of Texas 2020] |
No Accepted Common Name |
Praticolella candida |
Invertebrates |
Not Listed |
Not Listed |
G2 |
S2 |
True |
Woodland |