934 General Notes. 
STIZOSTEDIUM IN THE BASIN OF THE ConnecricuT.—I had 
the pleasure of announcing in the AMERICAN NATURALIST for 
October, 1887, the discovery of a specimen of Stizostedium vitreum 
at Cromwell, Conn., in a tributary of the Connecticut River. This 
is,so far as I am aware, the only recorded instance of the occurrence 
of the species in any of the rivers of the Atlantic coast between the 
St. Lawrence and the Susquehanna. It may be worth while to 
_ twelve inches in length. Both specimens are preserved in the 
Museum of Wesleyan University.— William North Rice, Wesleyan 
University, Middletown, Conn. 
Description oF A New SPECIES oF MEADOW MOUSE FROM 
THE BLACK Hints or Daxota.—In the higher parts of the 
Black Hills there lives a species of Arvicola resembling our eastern 
Meadow Mouse (A. riparius) in size and céloration, but differing 
from it strikingly in the possession of a very long tail and very 
large ears. Two specimens were collec ted in some brush land bor- 
dering a creek in the vicinity of Custer, Dakota, by Mr. Vernon 
Bailey, in July last, Examination of their teeth shows them to 
belong to the subgenus Myonomes. The species has no nearer 
relative than Arvicola townsendi, from which it differs in relative 
proportions and in other particulars. It may be known by the 
following diagnosis : | 
ARVICOLA (MYONOMES) LONGICAUDUS sp. nov. 
Long-tailed Arvicola. 
Type No. 4529, fem. ad., Merriam Collection. From Custer’ 
(in the Black Hills), Dakota, July 19,1887. Vernon Bailey. 
through. There is no sharp line of demarcation between: the color 
of the belly and that of the sides; the tail is slightly paler below 
than above, but lacks a distinct line of demarcation. : 
easurements (taken in the flesh): total length, 185 mm. ; tail, 
65 mm. ; hind foot, 21 mm. Ear (measured from the dry skin): 
