THE NAUTILUS. 133 



(Ortmann, 1920, p. 200). Anthony's rhombica appears to fit 

 this form and renders a new name unnecessary (see Amer. 

 Journ. Conch., I, p. 158, pi. 12, fig. 5). The same form 

 occurs in Lake Michigan near Chicago. Walker has apparently 

 recognized the variety in Michigan (1911, p. 127). 



Lasmigona costata eriganensis Grier. Long Point Island, Lake 

 Winnebago. The two specimens of this form found in beach 

 debris appear to be referable to the Lake Erie form described by 

 Grier. Measurements are given below: 



Length 90, height 53, width 30 mm. 



Length 80, height 43, width 24 mm. 



These conform to the diagnosis of Grier and are certainly dis- 

 tinguishable from the river form. 



Elliptio gibbosus sterkii Grier. Lake Winnebago, sand and 

 gravel bottom, in water as deep as 10 feet; Lake Butte des 

 Morts, gravel and stone bottom, water from one to three feet 

 deep. 



(To be continued) 



NOTES. 



FISH-CATCHING MUSSELS. When the U. S. S. Albatross went 

 through San Francisco Bay from Sausalito into dry dock at 

 Mare Island in preparation for the cruise of 1914, three mussels 

 which were subsequently found attached to the bottom had 

 made a curious mistake. They had each been so unfortunate 

 in closing their shells as to catch a little fish called anchovy by 

 the head. It would be interesting to know which animal was 

 most surprised by the encounter. EDWARD C. JOHNSTON. 



Mr. Edward C. Johnston of the U. S. Bureau of Fisheries has 

 recently transferred his large collection of shells to the California 

 Academy of Sciences, San Francisco. The collection consists 

 of about 30,000 specimens, chiefly land and fresh- water species 

 of the Mississippi Valley. Almost all of the material was cata- 

 loged, identified and indexed, ready for reference at once. It 

 is not often that a museum receives a collection which requires 



