Alan Cressler:
Palaemon antrorum, Edwards Aquifer, Hays County, Texas 1
Alan Cressler:
Palaemon antrorum, Edwards Aquifer, Hays County, Texas 2
Alan Cressler:
Palaemon antrorum, Edwards Aquifer, Hays County, Texas 3
Alan Cressler:
Phreatodrobia nugax, Edwards Aquifer, Hays County, Texas 1
Alan Cressler:
Phreatodrobia nugax, Edwards Aquifer, Hays County, Texas 1a
Alan Cressler:
Cirolanides texensis, Edwards Aquifer, Hays County, Texas 1
Alan Cressler:
Cirolanides texensis, Edwards Aquifer, Hays County, Texas 1a
Alan Cressler:
Cirolanides wassenichae, Edwards Aquifer, Hays County, Texas 1
Alan Cressler:
Cirolanides wassenichae, Edwards Aquifer, Hays County, Texas 1a
Alan Cressler:
Stygobromus russelli, Edwards Aquifer, Hays County, Texas 1
Alan Cressler:
Stygobromus russelli, Edwards Aquifer, Hays County, Texas 1a
Alan Cressler:
Stygobromus flagellatus, Edwards Aquifer, Hays County, Texas 1
Alan Cressler:
Stygobromus flagellatus, Edwards Aquifer, Hays County, Texas 1a
Alan Cressler:
Girardia tigrina (possible identification), Hays County, Texas 1
Alan Cressler:
Libitioides sayi, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Libitioides sayi, Pedernales Falls State Park, Blanco County, Texas 2
Alan Cressler:
Libitioides sayi, Pedernales Falls State Park, Blanco County, Texas 3
Alan Cressler:
Libitioides sayi, Pedernales Falls State Park, Blanco County, Texas 4
Alan Cressler:
Abacion texensis, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Japygidae, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Centruroides vittatus, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Centruroides vittatus, Pedernales Falls State Park, Blanco County, Texas 2
Alan Cressler:
Pogonomyrmex barbatus, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Porcellionides virgatus, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Pellaea ovata, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Argyrochosma dealbata, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Pseudouroctonus reddelli, Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Hogna carolinensis (possible identification), Pedernales Falls State Park, Blanco County, Texas 1
Alan Cressler:
Hogna carolinensis (possible identification), Pedernales Falls State Park, Blanco County, Texas 2
Alan Cressler:
Aphonopelma hentzi, Pedernales Falls State Park, Blanco County, Texas 1
