LYMNZIDZ OF NORTH AMERICA. 465 
Lymnea Sp. 
Limnea sp. WALKER, An. Rep. Mich. Geol. Surv., 1908, p. 291, 1909. 
Isle Royale: III, 3, Bulrush Zone at western end of Rock Harbor, 
No. 163; IV, 2, Island No. 14 in Tobin Harbor, No. 126. 
At both of these localities occurred a few dead, fragmentary and 
more or less decayed specimens, which could hardly be referred to any 
ef the species listed above, and yet were too imperfect to successfully 
identify. (Walker). 
Lymnza pyramidata Sowb. 
Limnea pyramidata Sows., Conch. Icon., sp. 58, pl. 6, fig. 35, 1872. 
No locality is mentioned for this species. The figure resembles 
Galba elodes jolictensis. Mr. E. A. Smith has expressed to Mr. Walk- 
er his belief that it is a monstrosity of reflexa. 
Limneza terrze-nove Lesson. 
Limnea terrenove Lesson, Rev. Zool., p. 356, 1840.—BINNEy, Journ. de 
Conch., XV, p. 428, 1867. 
As remarked by Binney, the affinites of this species are very doubt- 
ful. 
Limneza precellens West. 
Limnea precellens West., Ann. Mus. St. Petersburg, p. 177, 1898. 
No information has been obtained concerning this species. 
Galba. Species indet. Plate XXX, figures 21-24. 
SHELL: Small, ovate, turreted ; periostracum yellowish horn color ; 
surface shining; growth lines conspicuous, crowded; spiral lines ab- 
sent; whorls 5, rapidly enlarging, the body whorl quite globose; spire 
short, broadly turreted, the whorls inclining to be shouldered; aperture 
ovate or roundly ovate, somewhat oblique, about as long as the spire ; 
outer lip thin; inner lip evenly rounded, erect; umbilical chink widely 
open; there is no plait on the columella. 
Length. Breadth. Aperture length. Breadth. 
6.00 3.25 3.00 2.00 mill. 
6.00 3.25 3.00 aledaie 
6.00 3.25 2.75 aay = 
Types: Chicago Academy of Sciences, four specimens, No. 24,- 
545. 
Type Locatity: Greenhouse, Boulder, Colorado. 
Anima: “Greenish-gray, foot very pale; dorsum darkened and 
distinctly orange in the middle line; eyes black, large; tentacles short, 
triangular.” (Cockerell). ae 
Remarks: This peculiar little Lymnzea was found in a green- 
house in Boulder, Colorado, by Dr. T. D. A. Cockerell. It is unlike 
