43 



As already said, the work here under notice is recognized 

 as tentative. As additional material is acquired, and the 

 various groups are taken up monographically, probably 

 some of the recently described forms will be found to have 

 been too hastily recognized in nomenclature, and that 

 others now ranked as species will have to take the status 

 of subspecies. On the other hand, it is quite certain that 

 there still remain many new forms to be described, even 

 among some of the groups to which so many additions 

 have already been made. 



In many groups of our mammals little has been done as 

 yet beyond the description of a few new forms. Especially 

 is this the case with nearly all of the genera of the Car- 

 nivores, the Shrews and Moles. Some preliminary work 

 has recently been done on the latter by Mr. True, who has 

 in hand a monograph of the group. 1 The Shrews present 

 a most difficult and interesting group, where at present it 

 is almost impossible to properly allocate the names already 

 given, or to form even a surmise as to the number of spe- 

 cies and their relationships,. The Bats have fortunately 

 been brought into comparative order through the labors of 

 Dr. Harrison Allen, whose recent monograph of the subject 2 

 is a valuable contribution to our knowledge of their anat- 

 omy, relationships, and proper nomenclature. Thus 



'To the Moles have recently been added I new genus, 3 new species, and 1 

 new subspecies, as follows : 



Parascalops, gen. nov., True, Proc. U. S Nat. Mus., XVII., 1894, (advance 

 sheet, April 26, 1894). Type, Scalops breweri Bachman. 



Scapamis dilatus True, ibid. Fort Klamath, Oregon. 



Scapanus anthonyi Allen, Bull Am. Mus. Nat. Hist., V., p. 200, Aug., 1893. 

 San Padro Martir, Lower California. 



Scalops texanus Allen, ibid., IK., 1891, p. 221, and V., p. 200. Texas. 



Scalops aquaticus anstralis Chapman, ibid., V., p. 339, Dec, 1893. Florida. 



Scalops parvus Rhoads, Proc. Acad. Nat. Sci. Phila., 1894, p 157. Tarpon 

 Springs, Florida. 



2 A Monograph of the Bats of North America. By Harrison Allen, M.D,= 

 Bulletin of the U. S. Nat. Mus., No. 43. 8vo., pp. i-ix., 1-198, pll. i-xxxviii., 

 1893 { March, 1894). 



