JULY, 1906. 
NOTES ON WISCONSIN MOLLUSCA. 
95 
97. Alasmidonta (Pressodonia) calceolus Lea. 
Lake Michigan shore at Lake Park ; Jambo Creek, Manitowoc 
Co. Beaslev Creek, She-she-pe-comeo Park, Waupaca Co., C. E. 
Brown, Aug., 1903. 
98. Alasmidonta (Rugifera) marginata Say. 
(syn. Alasmidonta truncata B H. Wright.) 
Milwaukee river, at Lindwurm and below Schlitz icehouse. 
.3473, Milwaukee river, Wis. Nat. Hist. Soc. 11046, "Wis.," 
Wiswall collection. Junction Lake, Waupaca Co., C. E. Brown, 
Aug., 1903. Between Prairie du Chien and De Soto, Bunde & 
Upmeyer collection, C. E. Brown. For the evidence that this form 
rather the eastern varietv is the true marginata, see Fox in Naut., 
XV., 47. 
99. Unio (Elliptio) gibbosus Barnes. 
Milwaukee river, from Lindwurm to Schlitz icehouse, abund- 
ant ; Fox river, near Big Bend, Waukesha Co. ; ancient shell heaps 
at Wlnneconne, Winnebago Co. ; Lake Winnebago, west of High 
Cliff, Calumet Co. ; Two Rivers and mill pond at Hika, Manito- 
woc , Co. 11034, 11035, "Wis.," Wiswall collection. Beasley 
brook, She-she-pe-comeo Park, Waupaca Co., common, C. E. 
Brown, Aug., 1903. Between Prairie du Chien and De Soto, 
Bunde & Upmeyer collection, C. E. Brown. 
Unio gibbosus delicatus Simpson. 
12649, Fox river, near Big Bend, Waukesha Co., C. E. Brown. 
Unio (Elliptio) crassidens Lamarck. 
Between Prairie du Chien and De Soto, Bunde & Upmeyer 
collection, C. E. Brown. Fossil at Green Bay, see Wagner, Naut., 
XVIII, 97. 
Pleurobema (Plethobasus) aesopus Green. 
11031, 11040, "Wis.," W T iswall collection 
Quadrula (Crenodonta) plicata Say. 
"Wis.," Wiswall collection (?). Between Prairie du Chien 
and De Soto, Bunde & Upmeyer collection, C. E. Brown. 
