Gastropoda

(Snails & Limpets)

 Photogallery: 

Synonyms:  Horatia micra nugax (Pilsbry & Ferriss)
                                           (Murray & Roy 1968; Longley 1975; Fullington 1978)
                   Horatia nugax (Pilsbry & Ferris)
                                           (Pilsbry & Ferris 1906 in Burch 1982;Burch & Tottenham 1980; Burch 1989; Pennak 1989)

As Subspecies:
                    P. nugax inclinata (Hershler & Longley)
                                             (Longley 1986; Ourso & Hornig 2000; NatureServe 2008)
                    P. nugax nugax (Pilsbry & Ferris)
                                              (Longley 1986; Ourso & Hornig 2000; NatureServe 2008)

1906 Pilsbry & Ferris in
         Burch 1982

[1968 Murray & Roy]

1975 Longley
[1978 Fullington]

1980 Burch & Tottenham
1986 Longley
1989 Burch
[1989 Pennak]

[2000 Ourso & Hornig]
[2003 TCDC]
[2008 NatureServe]

[ ] indicate state record, no specific county or locality indicated

notes:

-Endemic to Texas (TCDC 2003)

*Species of concern (AOBIS 2001); Threatened (TCDC 2003)

-troglobitic in the Edwards Aquifer (Ourso & Hornig 2000)