THE NAUTILUS. 67 



Two specimens of this fine species were obtained. It is closely 

 related to Mscalpta (Heude) and faberiana (Mlldff.) of China. The 

 former is a somewhat larger shell, in which the supraperipheral sulcus 

 terminates at the lip in a downward projecting prominence, causing 

 the upper margin of the lip to appear composed of two small arches, 

 a structure not seen in M. hirasei. The spire in M. biscalpta is de- 

 cidedly wider than in the Formosan shell. M. faberiana (Mlldff.) 

 has not been figured. It is the size of M. hirasei, but differs by the 

 shape of the last whorl, which is flat, obtusely angulated above, and 

 obtusely angular around the umbilicus, by the absence of a parietal 

 callus, sinuous outer lip, etc. It also seems to differ in sculpture and 

 various other features. M. hiraseana probably will be found to 

 bear hairs on the larger warts when in fresh condition. 



A NEW SUBSPECIES OF POLYGYEA FERRISSI. 



BY JAMES H. FERRISS. 



Happening to look over my cabinet series of P.ferrissi by day- 

 light, I noticed that some shells from Balsam Mountain, Swain Co., 

 N. C., differed from ferrissi in several points, especially the minute 

 sculpture, and I believe them to be a new subspecies. 



Polygyra ferrissi sericea n. subsp. 



The shell has 5^ to 5^ whorls, the inner ones but slightly paler 

 than the outer, with but the slightest trace of punctation. The last 

 whorl has perceptibly closer striation than P.ferrissi, is less glossy, 

 and is covered with a weak, very minute granulation in the inter- 

 stices between striae ; there is also a slight, fine malleation or inden- 

 tation ; the general effect being that of a dull silk. The color is 

 rich reddish brown, with a slight olive tint. The lip is broad and 

 flat, a little turned back. The outer edge is dark, the inner rim 

 white. There is a very small parietal denticle, smaller than in P. 

 ferrissi. Alt. 12.7 to 13, diam. 23 mm. 



Balsam Mountain, Swain County, N. C. 



