348 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 Lymnaeid. The axis is not gyrate as 

 stated, but plicate as in reflexa, 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. 

 Hi, p. 724, 1859. ROBERTS, U. S. Geol. Surv., Wyoming, 1870, p. 468. 



Lymnaa kirtlandiana WHEATLEY, Cat. Sh. U. S., p. 23, 1845. SCUDDER, 

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



Limned kirtlandiana BINNEY, Check List, p. 12, 1860 ; L. & F.-W. Sh. N. A., 

 II, p. 67, fig. Ill, 1865. TRYON, Con. Hald. Mon., p. 112 (86), pi. 18, fig. 10, 

 1872. STERKI, Ohio Nat., II, p. 286, 1902. KEEP, West. Amer. Sh., p. 314, 1904. 



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



Leptolimn&a kirtlandiana TRYON, Amer. Journ. Conch., I, p. 257, 1865. 



Limnaa reftexa kirtlandiana WALKER, Nautilus, VI, p. 32, 1892; Rev. Moll. 

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

 BLATCH. & DANIELS, Rep. Dept., Geol. & Nat. Res. Ind., XXVII, p. 596, pi. 1, 

 fig. 11, 1902. DANIELS, 1. c., p. 636, 1902. 



Limnaa reftexa SOWB., Reeve, 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 reftexa kirtlandiana STERKI, Proc. Ohio State Acad. Sci., IV, p. 

 382, 1907. 



Lymnaa reflcxa exilis BAKER, Bull. 111. State Lab. N. 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 7, slowly 

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

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

 aperture elongate-ovate or long elliptical, a trifle effusive and reflexed 

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

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

 umbilical opening or leaving a very narrow chink ; parietal callus wide, 

 thin ; the columella is provided with a distinct ascending plait ; the axis 

 is slightly twisted. 



Length. Breadth. Aperture length. Breadth. 



18.00 6.50 7.00 2.25 mill. Type. 



18.00 6.00 7.50 3.00 " Topotype. 



20.50 6.50 8.00 3.00 " Crystal Lake, 111. 



19.00 6.50 7.00 3.00 " Chicago. 



20.25 6.75 8.50 3.50 " 



17.00 6.50 8.00 3.00 " 



TYPE: One specimen, Smithsonian Institution, No. 118662. 



