90 



elongated, and not fringed ; the nostrils su perior or lateral ; eyes hidden ; 

 tail short ; teeth 36 or 34; the two anterior upper on3s unusually large, 

 and somewhat like those of a rodent. 



Pomel, in 1848, separated a genus, Scapanus, the claims of which to 

 generic rank are now fully conceded, for the group with 44 teeth, retain- 

 ing the name Scalops for the species with 36 teeth. In Scalops the two 

 lateral incisors on each side above are small, thread-like, and often de- 

 ciduous; in Scapanus all the teeth in both jaws in front of the last pre- 

 molar, except the broad anterior upper incisors, are of nearly equal size, 

 conical, the upper with the points rounded oflf, the lower more compressed 

 and with the points more acute. In Scalops the tail is nearly naked ; in 

 Scapanus the tail is densely hairy. 



Prof. Baird, in 1857, admitted three species of Scalops; S. argentatus, 

 Ohio, and west ; S. aquaticus, the weli-knovvn species of the eastern United 

 States, and S. latimanus of Mexico. The latter is shown by H. Peters as 

 equivalent to S. aquaticus, or to the western form, S. aquaticus, v&t. -argen- 

 tatus (Aud. and Bach.), so Scalops stands represented by one species and a 

 geographical race. In the genus Scapanus, Pomel, are two well-defined 

 species; ^S". townsendi the Oregon Mole, and S. hreweri, the Hairy-tailed 

 Mole of Connecticut and New York to Cleveland, Ohio. Condylura cris- 

 tata (L), the Star-Nosed Mole, and Urotrichus gibbsi of the Western Coast, 

 complete the series of American Talpidie. 



Scalops Aquaticus Fischer. 

 Common Easteex Mole. 



1758. Sorex aqvnticus, Lin., Syst. Nat., 10th Ed., i, 1758, 53. — Erxleben, 

 Syst. Reg. Anim., 1771, 123.— Schreber, Saugt, iii, 566, table 

 108.— Boddaert, Elenchus Anim., 1784, 124.— Gmelin, Syst. Nat., 

 i, 1788, 112. 



1771. Brown Mole,Penn., Syn. Quad., 1771, 314. 



1777. Talpa flavescens, Erxleben, Syst. Reg. Anim., 1777, 118. (Prom 

 Pennant.) 



1800. Talpa purpurascens, Shaw, Gen. Zool. Mamm., i, 1800, 521. 



1820. Scalops canadensis, Desmarest, Mam., i, 1820, 155. — Harlan, Fauna 

 Am., 1825, 32 —Woodruff, Am. Journal Sc, xxviii, 1835, 168. 

 (Habits.) 



1829. Scalops aquaticus, Fischer, Syn., 1829, 249,— Bachman, Bost. Jour. 

 Nat. Hist., iv, 1843, 28.— Wagner, Suppl. Schreb., ii, 1841, 103.— 

 Aud. and Bach., Quad. N. A., i, 1849, 81, pi. 31.— Jordan, Man. 

 Vert., 2d Ed., 1878, 25. 



