THK NAUTILUS. 91 



(1.) Mut. rtffesce/ts, Dumont and Mortillet. Reddish, without 

 tiny distinct spots or lines. Sixteen specinnens. 



(2.) Mut. brunneus, Taylor. Very dark-brown; one or two are 

 so nearly black that they could be taken for mut. niger, Morelet. 

 Eight specimens. 



(3.) Mut. semii-ufus, nov. Head and mantle rufous ; body poster- 

 ior to mantle almost black. Two specimens. This indicates that 

 the coloration of the head and mantle, and that of the body, may be 

 separately inherited, though more frequently the color of the animal 

 above is uniform. 



The common English forms pallida Schrenk, and reticulata 

 Miiller, are absent. 



MARGARITANA MARGARITIFERA IN PENNSYLVANIA. 



BY CHAS. H. CONNER. 



A few weeks ago, I had the pleasure of receiving a few^ specimens 

 of Margaritana margaritifera Linnteus, which were taken from Still 

 Creek, near Quakake, Schuylkill Co., Pa, As I believe this species 

 of fresh-water mussels has not been reported living in Pennsyl- 

 vania, I send you this note. 



Mr. Frank M. Ebert who kindly forwarded the specimens to me, 

 states that they are found in the several streams of tiie vicinity. He 

 and others have taken a great quantity of pearls of all sizes and 

 grades from them. Thougli Mr. Ebert has collected the species for 

 some time, he informs me that he !ias never found a gravid specimen. 



The foot and gills of the specimens examined are brownish, the 

 rest of the body being white. 



NOTES AND NEWS. 



AkiON CIHCUMSCRIPTUS, JoiINS. (FASCIATUS NlI.SS., pars). 



Last June 1 found tliis European slug in abundance on Goat Island, 

 Niagara Falls, N. Y. It appears to be an addition to the fauna of 

 New York, but Dr. N. L. Britton. to whom I mentioned the occur- 

 rence, said he was sure he had heard some report of it. The speci- 

 mens were of the usual grey color, with narrow bands and a slight 

 keel. In 1887 I searched the same locality, but at that time the 

 Arion was apparently absent. — T. D. A. Cockekell. 



