134 
1919 Variety Cronkhitei 
Klamath valley, Oregon. Cal. Nevada. 
1920 Pyramidula asteriscus 
Maine to Vancouver Island. 
1921 Helicodiscus lineatus (See Helix). 
White Oaks, N. M.—F lorida.—Canada. 
1922 Punctum pygmzum 
Quebec. Texas. Cal. Vancouver Island. 
1923 Punctum Clappi 
“Shell minute, openly umbilicated, yellowish-brown, with de- 
pressed, nearly level spire, and cylindroid whorls. Whorls 3.5, 
the earlier 1.5 smoothish, finely pitted, the last 1 or 1.25 whorls 
sculptured with elevated laminz running with the increment- 
lines, 30 to over 40 on the last whorl, the intervals closely stri- 
ated and showing fine spiral striation; suture impressed, descend- 
ing in front; umbilicus deep and open, its width contained be- 
tween 3 1-3d and 3 1i-half times in greatest diameter of shell. 
Aperture short oval, higher than wide, somewhat oblique, but 
little excised by the previous whorl. Alt. 1.1-1.2 mm.’’—Pilsbry, 
Nautilus 11:133. 
Type localities:—Seattle (Randolph) and Tacoma, Wash. 
(Hemphill); Salem, Oregon (Hemphill). 
1924 Punctum californicum 
“Similar to P. conspectum in the small, deep umbilicus and 
color. Spire somewhat more elevated; whorls fully 4, closely re- 
volving, the last decidedly narrower than in conspectum (viewed 
from above). Surface lusterless, with fine, even, hair-like stria- 
tion, and in places showing faint traces of spiral strie. Umbilicus 
narrow and deep, its width contained 4 1-3 times in greatest diam- 
eter of shell. Aperture wider than high, shaped much as in P. 
conspectum. Alt. 1.14, greatest diam. 1.85 mm. Fish Camp, 
Fresno county, California.’’—Pilsbry, Nautilus, 11:134 (Ap 
1898). 
1924 Succinea Haydeni W. G. Binn. 
Nebraska to Utah. Var. minor W. G. B. from Great Slave 
Lake. 
1925 Succinea Grosvenorii Lea. 
La. Miss. Texas. Kans. Nebr. Colo. Utah. Mont. 
1926 Forma elongata: Kremmling, Colo. 
1927 Forma rufescens Ckll. Lee Co., Texas. 
1928 Succinea avara Say. 
Canada to Georgia; Mont., Utah, Texas, Cal. 
1929-1933 Forms alba Ckll. (Custer Co., Colo.); wardiana Lea; 
vermeta Say; compacta Ckll.; major Binn. have been de- 
scribed. 
1934 Succinea oregonensis Gabbi. 
Utah; Wyoming; eastern Oregon. 
1935 Succinea chysis Westerl. 
Port Clarence, St. Michaels and Kadiak, Alaska. Siberia. 
1936 Variety aurelia Martens. 
Port Clarence, Alaska. 
1937 Succinea annexa Westerl. 
Port Clarence, Alaska. Nos. 1935-1937 are probably varia- 
tions of one species. 
1938 Vaginulus olivacea 
Lobitos, Cal. (Stearns) ? 
1939 Helix devia Clappi. 
