296 NORTH AMERICAN MUSTELID.E. 



for IPfil, 1P62, UO.—Hmjd. Tr. Amer. Phil. Soc. xii. 1862, U-X-Hall, Caiiad. Nat. 



and Geol. vi. 1861, 291.— Ross, Cauad. Nat. and Geol. vi. 18fil, 35.— B«rns(on, Canad. 



Nat. and Geol. viii. 1863, , f. —.—Oerr. Cat. Bones Br. Mus. 1862, lOl.— Allen, Pr, 



Bost. Soc. xiii. 1869, 183.— Bull. M. C. Z. i. 1H69, 178; ii. 1871, 169 (FIotUVa,).— Gilpin, 



Proc. and Tr. N. Scotia Inst. ii. 1870, 60.— All. Bull. Ess. Inst. ri. 1874, 46, 63 (Kansas 



and Utah).— Ames, Bull. Minn. Acad. Nat. Sci. 1874, 69.—Goucs & Yarrow, ZoiJl. Expl. 



W. 100 Merid. v. 1875, 63.— Allen, Bull. U. S. Geol. and Geog. Surv, Terr. vol. ii. no. 4, 



1876, 331 (skull). 

 Intra canadensis var., Aud. d- Bach. Q. N. A. iii. 1853, 97, pi. 122 (figure of Gray's type of 



Lataxina tnollift). 

 latax canadensis. Gray, P. Z. S. IFTvi, 133 ; Cat. Carn. Br. Mus. 1869, — . 

 Intra vnljraris var. canadensis, Wagn. Suppl. Scbreber, ii. 1841, 256. 

 Miistela luidsonica, "Laccpide". 

 Intra luidsonica. F. Cuv. Suppl. Bnffou, i. 1831, 194. 

 ?Lutra jrnicilis, Oken, Lelirb. Naturg. Th. iii. Abtli. ii. 1816, 986^"Staatenland, Ineel an 



AmcriUa bei New- York"'). 

 lu(ra brasiliensis, Desm. Mamm. i. 1820, 188 (in part).— HwrZ. Fn. Amer. 1825, 71 (in part).— 



Godm. Ara. N. H. i. 1831, 222, pi. — , f. 2 (in i)art). —Thomps. N. H. Vermont, 1853, 33. 

 Intra lataxina, F. Cuv. "Diet. Sc. Nat. xxvii. 1823, 242"; Suppl. Button, i. 1831, 203.— "Js. 



Geoff. Diet. Class, ix. 5-20.''— Griff. An. Kingd. v. 1827. 131, no. 364.— Lets. Man. 1827, 154, 



iio."416.—Fiscft.Syn. 1829,226, no. 4.— Z>(?jB:ff2/, N. Y. Zool. i. 1842, 41.— Schinz, Syn. i. 



1844, 350. 

 Latax lataxina, Gray, Ann. Mag. N. n. i. 1837, 119. 



Lataxina mollis, Gray, List Mamm. Br. Mus. 1843, 70 (type figured by Aud. & Bach. I. e.). 

 Lutra americana, Wyman, Pr. Bost. Soc. ii. 1847, 249 (on articulation of mandible). 

 Lutra californica, Bd. M. N. A. 1857, ISI.—Newb. P. E. R. Rop. vi. 1857, 42.— Coop, dt Suck. N. 



n. W. T. 1860, 115. (Probably not of Gray.) 

 Lutra destructor, Bamst. Canad. Nat. and Geol. viii. 1863, 147, f. — (Lake Superior). 

 Loutre du Canada, Buff. "Uist. Nat. xiii. , 322, 326, pi. 44 (4to ed.) ; ed. Pillot. xv. p. 



80"'.— Fr. Guv. I.e. 

 Loutre de la Caroline, F. Cuv. I. c. 



Loutre d'Ani^rique, Cuv. (in part; unites the Brazilian species). 

 Common Otter, Pennant, Aict. Zoiil. i. 1784, 86, no. 34 (in part; unites the European). 

 Land Otter, Warden, United States, i. 1819, 206. 

 American Otter, Godman, I. c, Baird, I. c, aud of authors. 

 Canada Otter, Sabine, Rich. I. c, Aud. db Bach. I. c, and of authors. 

 (Otter, see Martens, Zool. Gart. xi. 1870, 279; philological.) 

 Neckeelt, Oree Indians. 



Hab. — North America at large, being rather sparingly distributed over 

 most of the waters of the continent. Said to occur in Central America 

 (Costa Rica, v. Franfzius). 



Specific characters." — Orbits well defined by prominent conical post- 

 orbital processes, the distance between the tips of which is one-half or more 

 of the intermastoid width of the skull. Inner depressed moiety of posterior 

 npper premolar as large and nearly as long as the main outer moiety ; gen- 

 eral dentition strong. Naked nasal i^ad large (upward of an inch long or 

 broad in full-grown individuals), extending back above the nostrils in a 

 /^-shaped outline, reaching below the nostrils with a straight transverse 

 border, which sonjetimes sends a slight spur part way down the median line 

 of the lip. Palms hair^^ between the digits, isolating the individual bald 

 digital bulbs, and having an isolated patch or carpal peninsula of hair 

 posteriorly. Soles hairy between the digits, isolating the individual digital 

 bulbs, much encroached upon by hair from behind, and having three or four 

 peculiar small circular elevated callosities arranged around the posterior 



* Drawn up with special reference to antithesis with L. vulgarie of Europe. 



