Gastropoda
(Snails & Limpets)
PLANORBIDAE
Helisoma trivolvis (Say)
Marsh Rams-Horn
Photogallery:
Synonyms: Planorbella trivolvis (Say)
(Bayer et al. 1992; Jasper 1996; Neck 1985, 1990b, 1994b; NatureServe 2008; Neck & Schramm 1992)
Planorbis trivolvis Say
(Strecker 1908; Hanna 1923; Ferriss 1924; Longley 1975)
As Subspecies:
Helisoma trivolvis intertextum (Sowerby)
syn: Planorbella trivolvis intertextum
Helisoma trivolvis lentum (Say)
(Branson 1960, 1967; Cheatum 1935; Cheatum, Fullington & Pratt 1972; Davidson & Walter 1963;
Fullington 1978, 1982; Milam 2005; Murray & Roy 1968; RET Inc. 1974; Vanata 1933; Wise
1962)
syn: Planorbella trivolvis lentum (Say)
(Burch 1982)
Helisoma trivolvis turgidum (Jeffreys)
(Murray & Roy 1968)
syn: Planorbella trivolvis turgida (Jeffreys)
(Burch 1982)
1908 Strecker
1923 Hanna
1924 Ferriss
1933 Vanata
1935 Cheatum
1938 Clark
1945 Baker in Branson 1960
1960 Branson
1962 Wise
1963 Davidson & Walter
1967 Branson
1967 Sublette & Sublette
[1968 Murray & Roy]
1972 Cheatum Fullington
Pratt
[1974 RET Inc.
1975 Longley
1976 Harrel & Duplechin
1978 Fullington
1979 Fullington
1981 Merickel & Wangberg
[1982 Burch]
[1982 Fullington]
1982e Neck
1990b Neck
1992 Bayer et al.
1992 Neck & Schramm
1994b Neck
1996 Jasper
2005 Milam
[2008 NatureServe]
[ ] indicate state record, no specific county or locality indicated
notes:
-rare (Strecker 1908)
-also reported from the Nueces River (Ferriss 1924)
-H. trivolvis lentum collected as fossils in the following counties: Briscoe, Clay, Cooke, Delta, Donley, Edwards, Foard, Hardeman, Knox, Reeves, Wichita, Wilbarger
| copyright: Stephen W. Ziser 2010 Mainpage E-mail |