The Aquatic Invertebrates of Texas

Bivalvia

(Mussels & Clams)

UNIONIDAE

Uniomerus tetralasmus (Say)

Pondhorn

 

 Photogallery: 

 

 

Synonyms:  Elliptio tetralasmus Say
                                          (Bachtel 1940; Strecker 1931)
                  Unio camptodon Say
                  Unio jamesianus Lea
                                          (Vaughn 1893)
                  Unio sayi Ward
                                         (Pilsbry 1891)
                  Unio symmetricus Lea  
                                          (Pilsbry 1891)
                  Unio tetralasmus Say

                                          (Simpson 1914; Strecker 1908)
                  Unio tetralasmus camptodon Say
                                          (Strecker 1908)

As Subspecies:
                  Uniomerus tetralasmus camptodon (Say)
                                          (Murray & Roy 1968)
                  Uniomerus tetralasmus manubius

                     syn: Unio tetralasmus manubus Say
                                                              (Strecker 1908)

 

 

 

Distribution Citations

1891 Pilsbry
1893 Vaughn

1908 Strecker

[1914 Simpson]

1931 Strecker
1938 Clark
1938 Parks Cory et al.

1940 Bachtel

1954 Read

[1968 Murray & Roy]

1972 Mauldin
1974 RET Inc.
1976 Calnan
[1978 Pennak]

1982 Golightly
1982 Neck HFM
1982 Newberry
1984 Neck & Metcalf
1986a Neck FBLT
1987 Neck
1989 Neck FBLA
1989a Neck FBAL
[1989 Pennak]
1989b Vidrine

 

1990b Neck
1993 Vidrine
1994 Howells DSFB105
1996 Howells DSFB120
1996 Howells DSFB125
1996 Howells et al.
1996 Jasper
1997 Howells
1997b Howells
1997 Howells DSFB144
1997 Howells FMWRS
1998 Feaster
1998 Howells DSFB147
1998a Howells FMO
1999 Howells DSFB161

2000 Howells
2004 Bordelon & Harrel
2006 Ford & Nicholson
[2008 NatureServe]

 

 

 

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

notes:

-found in lakes with muddy bottom, ponds and small streams (Howells et al. 1996); characteristic of temporary ponds and streams (Neck 1988 FBLT)

-can survive desiccation (Neck 1982 PAEZ); digs down to moist mud to survive stream drying (Read 1954)

copyright:   Stephen W. Ziser    
                          2010


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