350 THE CHICAGO ACADEMY OF SCIENCES. 
much smaller aperature. It approaches nearest in general form to 
some individuals of Galba elodes jolietzensis, from which it may be 
known by its narrower and flatter body whorl, its less rounded and 
more oblique whorls, and its longer and narrower aperture. 
Kirtlandiana has been considered by many excellent conchologists 
a synonym of both exilis and lanceata, from both of which it seems 
perfectly distinct. The type specimen in the Smithsonian Institution 
(No. 118662) agrees well with Binney’s figure. Specimens of e-vilis 
from Poland, Ohio, in the Lea collection, have doubtless been the 
cause of its reference to exilis. All of Lea’s specimens which have 
been examined are immature; the adult shell is figured on plate 
XXXVII, figures 13-14. A specimen from the Lewis collection re- 
ceived from Lea, now in the possession of Mr. Bryant Walker, is 
identical with the type and agrees perfectly with the shells figured on 
plate XXXVII. Tryon’s figure in Haldeman’s monograph (pl. 18, 
fig. 10) is very poor, showing the whorls too flat-sided and too oblique, 
and particularly misrepresenting the shape of the body whorl. A 
peculiar flat-sided type of shell has been received from Iowa under the 
name of kirtlandiana, but this is referable to exilis (see under e-rilis; 
see also plate XXXVII, figure 11). Kirtlandiana, when understood 
and properly distinguished from exvilis and lanceata, will doubtless be 
found to occupy a large territory, in the states from Ohio to Nebraska 
and from the Lake Superior region southward to the vicinity of the 
40th parallel. 
Galba lanceata (Gould). Plate XXXVII, figures 17-22. 
Limnea lanceata Goutp, Proc. Bost. Soc. N. H., III, p. 64, 1848—BInneEy, 
Check List, p. 12, 1860; L. & F.-W. Sh. N. A,, p. 68, fig. 112, 1865—CuRrRIER, 
Kent. Sci. Inst., Mis. Pub., No. 1, 1868—Tryon, Con. Hald. Mon., p. 113 (87), 
pl. 18, fig. 11, 1872—SmitH, U. S. Fish Com. Rep. 1872-73, p. 702, 1874.— 
WALKER, Journ. Conch., II, p. 330, 1879——STEARNs, Proc. Nat. Mus., XIV, p. 
101, 1891—Watke_r, Nautilus, VI, p. 33, 1892—Taytor, Ottawa Nat., VI, p. 35, 
1892.—WaLkeEr, Rev. Moll. Mich., pp. 6, 18, 1894; Nautilus, IX, p. 4, 1895.— 
STEARNS, Proc. Nat. Mus., XXIV, p. 291, 1901—RuTHVEN, Rep. Mich. Acad. 
Sci., VI, p. 190, 1904. 
Limnea lanceata Goutp, Agassiz’s Lake Sup., p. 244, pl. 7, figs. 8, 9, 1850; 
Otia Conch., p. 206, 1862. 
Lymnea lanceata GouLp, Rep. N. Y. State Mus., XXVII, p. 53, 1875. 
Acella lanceata Tryon, Amer. Journ. Conch., 1, p. 258, 1865. 
Leptolimnea lanceata DECAmpP, Kent. Sci. Inst., Mis. Pub., No. 5, p. 8, 1881. 
SHELL: Elongate-cylindrical, rather thin, compressed; periostra- 
cum light to very dark horn colored; surface dull to shining; growth 
lines and spiral lines very heavy producing a conspicuously marked 
reticulated appearance ; whorls 6 to 6™%, flatly rounded, slightly oblique, 
