THE CHICAGO ACADEMY OF SCIENCES. 



ination of haldemani shows a marked difference in the nuclear whorls. 

 The genitalia and radula of haldemani are also peculiar and unlike 

 those of any other American Lymnseid. The axis is not gyrate as 

 stated, but plicate as in rcflcxa, although individual specimens may be 

 of a gyrate character. 



Galba kirtlandiana (Lea). Plate XXXVII, figures 12-16. 



Lymnea kirtlandiana Lea, Proc. Amer. Phil. Soc, II, p. 33, 1841: Trans. 

 Amer. Phil. Soc, IX, p. 12, 1844; Obs.. IV, p. 12, 1848; Hayden's Report, II, pt. 

 iii, p. 724, 1859. — Roberts, U. S. Geol. Surw. Wyoming. 1870. p. 468. 



Lymncea kirtlandiana Wheatley, Cat. Sh. U. S., p. 23, 1845. — Scudder, 

 Bull. Nat. Mus., 23. pp. 33. 44. 201. 1885.— Dall, Alaska Moll., p. 72, fig. 48, 1905. 



Limncea kirtlandiana Bixxey, Check List, p. 12, 1860; L. & F.-W. Sh. X. A.. 

 II, p. 67, fig. Ill, 1865.— Tryqx, Con. Hald. Mon., p. 112 C86), pi. 18, fig. 10, 

 1572.— Sterki, Ohio Nat., II. p. 286, 1902.— Keep, West. Amer. Sh., p. 314, 1904. 



Limnea kirtlandiana Dean, Amer. Nat, XXVI, p. 18, 1892. 



Leptolimncea kirtlandiana Tryox, Amer. Journ. Conch.. I, p. 257. 1865. 



Limncea reilexa kirtlandiana Walker, Xautilus. VI. p. 32. 1892; ReY. Moll. 

 Mich., p. 17, 1894.— Baker. Moll. Chi. Area. p. 281. pi. XXXI. fig. 4. 1902.— 

 Blatch. & Daxtels, Rep. Dept., Geol. & Xat. Res. Ind., XXVII. p. 596, pi. 1, 

 fig. 11. 1902.— Daxiels, 1. c, p. 636. 1902. 



Limncea reilexa Sowb., ReeYe, Conch. Icon., pi. 5, sp. 32. a, 1872. — Baker, 

 Trans. Acad. Sci. St. Louis, XI, pi. 1, fig. 6. last two figures to right, 1901; Moll. 

 Chi. Area, pi. XXXII, fig. 6, last two figures to right. 1902. 



Lymncea reilexa kirtlandiana Sterki, Proc. Ohio State Acad. Sci., IV. p. 

 382, 1907. 



Lymncea reflexa exilis Baker, Bull. 111. State Lab. X. H., VII, p. 105, 1906 

 (part). 



Shell: Much elongated, turreted. rather thin; periostracum pale 

 horn color to dark brown; sculpture as in exilis; whorls 6 to ?. slowly 

 increasing in size, slightly conYex. only a trifle oblique, the body whorl 

 Yery flatly rounded ; spire Yery long, acute, turreted ; sutures impressed ; 

 aperture elongate-OYate or long elliptical, a trifle eftusiYe and reflexed 

 below ; outer lip with a Yarical thickening ; inner lip narrow, 

 erect, tightly appressed to the body whorl, either entirely closing the 

 umbilical opening or leaYing a Yery narrow chink ; parietal callus wide, 

 thin : the columella is proYided with a distinct ascending plait ; the axis 

 is slightly twisted. 



Length. Breadth. Aperture length. 



18.00 6.50 7.00 



IS. 00 6.00 7.50 



20.50 6.50 8.00 



19.00 6.50 7.00 



20.25 6.75 8.50 



17.00 6.50 8.00 



Type: One specimen. Smithsonian Institution. Xo. 118662. 



Breadth. 





2.25 mill. 



Type. 



3.00 " 



Topotype. 



3.00 " 



Crystal Lake, 111. 



3.00 " 



Chicago. 



3.50 "' 



CI 



3.00 





