\pril, 1963 nautilus 135
nificance to the United States. U.S. Department of Agriculture,
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Jour. Am. Med. Assoc. 1951. Schistosomiasis. Report. Vol. 146.
p. 1149.
Manson's Tropical Disease's. 1954. 14th Edition. Cassell & Com-
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SOME SUCCINEIDAE, WITH A NEW SPECIES
By LESLIE HUBRICHT
During the spring of 1962, the author visited Lake Concordia,
Louisiana, the type locality of Succinea concordialis Gould, and
Alexandria, Louisiana, the type locality for Succinea grosvenori
Lea and Succinea haleana Lea. Good series of all these species
were collected and I found that these species were not what they
had been generally considered to be. As a result, it will be
necessary to change the status of several specific names. While
unfortunately these changes must be made, I hope that a better
understanding of the species will result, and that further changes
in their status will not be necessary.
Succinea concordialis Gould.
Succinea concordialis Gould, 1848, Proc. Boston Soc. Nat. Hist.
3: 38.
Succinea unicolor Tryon, 1866, Amer. Jour. Cone. 2: 230, p. 2
(17) fig. 3.
This species was found in large numbers around Lake Con-
cordia, and Lake St. John, and in Ferriday and Vidalia. Spec-
imens from Lake Concordia are usually larger and more elongate
than those from the vicinity of New Orleans, and are of a bright
golden color with a reddish tip to the spire.
Succinea grosvenori Lea.
Succinea grosvenori Lea, 1864, Proc. Acad. Nat. Sci. Phila.
p. 109.
Succinea haleana Lea, 1864, Proc. Acad. Nat. Sci. Phila. p. 109.
Succinea forsheyi Lea, 1864, Proc. Acad. Nat. Sci. Phila. p. 109.
? Succinea mooresiana Lea, 1864, Proc. Acad. Nat. Sci. Phila.
p. 109.
Succinea (Desmosuccinea) pseudavara Webb, 1954, Gastropo-
dia 1: 18, figs. 4, 5.
Succinea grosvenori is an extremely variable species. In the
vicinity of New Orleans, Louisiana, it is small and thin and
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