THE NAUTILUS. 



Solarium planiforme n. sp. pi. I, figs. 4. 5, 6. 



Shell flat, whorls six, apical one smooth, the balance with a 

 beaded spiral boundary followed closely by a smaller spiral likewise 

 beaded, two faint spirals near suture ; lines of growth fine, coarser 

 nearer 'aperture, the side of the body-whorl forming an acute angle 

 with the top and nearly a right angle with the base; the side is 

 slightly convex, with a granular raised line immediately below the 

 periphery and two fainter ones near the base ; the basal keel 

 beaded ; umbilicus wide, marked with two or three beaded lines. 

 Aperture wedge-shaped, narrower at junction with body-whorl. 

 Max. diameter 19 mm., elevation (i mm. 



Locality : near Rosebud P. O., Wilcox Co., Ala., in Matthews 

 Landing beds. 



A MONTH WITH THE MICHIGAN FISH COMMISSION. 

 BY BRYANT WALKER, DETROIT, MICH. 



In 1893, the Michigan Fish Commission, in co-operation with the 

 University of Michigan, inaugurated a systematic biological exami- 

 nation of the Great Lakes, with special reference to the work of the 

 Commission in replenishing the rapidly decreasing fisheries of the 

 State The headquarters of the field-party for 1894 was established 

 at Charlevoix, the well-known summer resort, on the east coast of 

 Lake Michigan, and formerly a fishing station of considerable mag- 

 nitude Through the kindness of Prof. Henry B. Ward, the 

 Director-in-charge, the writer was invited to spend his vacation 

 with the party as conchologist. In addition to the usual methods 

 of collecting along the shore and from small boats, considerable 

 dred-in- was done in the deeper waters of both Lake Michigan and 

 Pine Lake A three days' trip to the Beaver Islands at the north- 

 ern end of Lake Michigan, was one of the most interesting episodes 

 of the summer, and one most fruitful in its results, as ,t was, un- 

 doubtedly, the first time the islands had been visited for scientific 

 purposes The unusual facilities enjoyed by the expedition in the line 

 of deep water dredging, have afforded many noteworthy additions 

 to the fauna of the State in all classes of the invertebrate and es- 

 pecially in the mollusca; and, at the suggestion of the editors ol 

 THE NAUTILUS, the following summary of the results obtained has 



