DURODON—DYSTOMUS. 947 
Durodon (see Dorudon). Cete, Basilosauridee. 
Dusicyon (subgenus of Chaon) H. Smrru, 1839. Fer, Canide. 
H. SwrrH, in Jardine's Nat. Library, Mamm., IX, 248-258, pls. xxrir-xxvi, 
1839; ed. 2, Mamm., I, 154, 1858; IV, 248-258, pls. 22-26, 1866; V, 291, 1865. 
Dysicyon AaAssiz, Nomenclator Zool., Mamm. Addenda, 4, 1846; Index Univ., 
132, 1846; ed. 2, 380, 1848. 
Dusocyon BoureuiaNnat, Ann. Sci. Géol., Paris, VI, art. 6, pp. 24, 29, 1875. 
Dasicyon 'TRovESsART, Cat. Mamm., new ed., fasc. 11, 299, 1897 (in synonymy, 
misprint). 
Species, 4: Dusicyon canescens Smith, from the vicinity of the Plate River; Canis 
antar[c]ticus auct., from the Falkland Islands; Dusicyon sylvestris Smith, from 
northern South America; and Vulpes fulvipes Martin, from Chile. 
Dusicyon: d061s, setting of the sun, i. e., western; «ocv, dog— western dog.’ 
Dymecodon Tnvx, 1886. Insectivora, Talpid:e. 
Proc. U. 8. Nat. Mus., IX, 97-98, Sept. 2, 1886. 
Dimecodon Cours, Century Dict., II, 1621, 1889 (emendation). 
Type: Dymecodon pilirostris True, from Yenosima, Bay of Yeddo (Tokyo), Japan. 
Dymecodon: 800, two; 4)«os, length; dd@v = ddo0vs, tooth—i. e., having teeth 
of two lengths, in allusion to ‘‘the alternation of large and small teeth in the 
lower jaw." 
Dynamictis AwEGniNo, 1891. Marsupialia, Borhyzenide. 
Revista Argentina Hist. Nat., I, entr. 3a, 148-149, fig. 53, June 1, 1891. 
Type: Dynamictis fera Ameghino, from the Lower Eocene of southern Patagonia. 
Extinct. 
Dynamictis: d0v apis, power, strength; z«r:c, weasel—in allusion to its size. 
which was that of a large bulldog. 
Dysicyon (see Dusicyon). Ferz, Canide. 
Dysodus Corr, 1879. : Feree, Canidee. 
Proc. Acad. Nat. Sci. Phila., 1879, 188-189. 
Type: Dysodus pravus Cope, ‘the Japanese Sleeve Dog.’ 
Dysodus: óvG-, bad; 6d0vs, tooth—in allusion to the degradation of dentition, 
in which the total number of teeth may be reduced to 16. 
Dysopes [LiicEr, 1811. Chiroptera, Noctilionide. 
Prodromus Syst. Mamm. Avium, 122, 1811. 
Dysopus Buytx, in Cuvier's Animal Kingdom, 69, 1840; new ed., 1849, 69; new 
ed., 1863, 57. 
Type: Vespertilio molossus Gmelin, ‘habitat in insulis Americze oppositis." 
Dysopes: Své@7éo, to make one change countenance (‘horribili specie perter- 
reo,’ Illiger)—from the uncouth expression of the face. 
Dystheatus ILiicer, 1815. ? re 
Abhandl. K. Akad. Wiss., Berlin, für 1804-1811, 158, 1815—nomen nudum. 
The name occurs, without reference or authority, between Rhinolophus and Erina- 
ceus, in a table of genera common to the southern and northern hemispheres, 
Dystomus G. FiscuEr, 1813. Sirenia, ? 
Zoognosia, I, 3d ed., 15, 19, 1813. 
Distomus 'TRovESSART, Cat. Mamm., new ed., fasc. v, 1008 (in synonymy); C. O. 
WarERHOUSE, Index Zool., 112, 1902 (misprint). 
No species mentioned under the genus. 
Dystomus: óv6-, bad; 6róua, mouth. 
