GYROSUS—HADROTHERIUM. 305 
Gyrosus—Continued. 
Type: Sus (Gyrosus) pliciceps Gray, from Japan. 
Name antedated by Centuriosus Gray (Proc. Zool. Soc. London, Jan., 1862, 17). 
These dates are, however, merely relative, January being the date of reading 
before the Zoological Society, and March 10 the date of the preface of the Cata- 
logue, which publication undoubtedly appeared later than the ‘Proceedings.’ 
Gyrosus: y vpós, round; + Sus. 
Ei: : 
Habrocebus WacNER, 1839. Primates, Lemuridee. 
Suppl. Schreber’s Sáugthiere, I, pp. ix, v bis, 257-262, tab. xui a, 1839; V, 
140, 1855. 
Species: Lemur lanatus Schreber, and Propithecus diadema. Bennett, from Mada- 
gascar. 
Habrocebus: &f)pós, graceful; Kos, a long-tailed monkey. 
Habrocoma WaGNrr, 1842. Glires, Octodontide. 
Wiegmann’s Archiy Naturgesch., 1842, I, 5-8. 
Emendation of Abrocoma Waterhouse, 1837. ‘‘Unterdem Namen Abrocoma, der 
sprachrichtiger in Habrocoma zu veründern ist, stellte Waterhouse im Jahre 
1837 diese Gattung auf." 
Habrocema: &fp0s, soft, delicate; Kou, hair—in allusion to the extremely soft 
pelage, which resembles chinchilla. 
Habrothrix (see Abrothrix). Glires, Muridze, Cricetinze. 
Hadrohyus Leipy, 1872. Ungulata, Artiodactyla, ? 
Proc. Acad. Nat. Sci. Phila., for 1871, 248, Jan. 16, 1872. 
Type: Hadrohiyus supremus Leidy from the Miocene of ‘ Alkali Flat,’ Bridge 
Creek Valley, Crook County, Oregon. 
Extinct. Based on the greater part of the crown of a last upper premolar or 
true molar. 
Hadrohyus: &ópós, thick, stout; Uc, OS, hog. 
Hadropithecus Lorenz von LiBuRNAv, 1899. Primates, Lemurid:e. 
**Sitzungsb. Math.-Phys. Cl. K. Akad. Wiss. Wien, 256, 1899" * (fide Zool. Record 
for 1899, XX XVI, Mamm., 25, 1900); Denksch. K. Akad. Wiss. Wein, LXX, 
1-8, Taf. 1, figs* 1-7, 1901. 
Type: Hadropithecus stenognathus Lorenz yon Liburnau, from the Pleistocene of 
Androhomana, near Fort Dauphin, southeastern Madagascar. 
Extinct. 
Hadropithecus: &8pós, thick, stout; zí05os, ape. 
Hadrorhynchus Amecuino, 1891. Marsupialia, Microbiotheridee. 
Nuevos Restos Mamíf. Fós. Patagonia Austral, p. 25, Aug., 1891; Revista Argen- 
tina Hist. Nat., I, entr. 5a, 311, Oct. 1, 1891. 
Species 3: Hadrorhynchus tortor Ameghino, H. torvus Ameghino, and JH. con- 
spicuus Ameghino, from the lower Eocene of southern Patagonia. 
Extinct. 
Hadrorhynchus: &dpo0s, thick, stout; 90» yos, snout. 
Hadrotherium ('Finnor') THomas, 1884. Ungulata, Artiodactyla, Anoplotheriidee. 
Zool. Record for 1883, X X, Index new genera, 6, 1884. 
Emendation of Adrotherium Filhol, 1883. 
Hadrotherium: &àpóz, thick, stout; 0zp£ov, wild beast. 
*The name does not seem to be given in this reference, which should probably be 
‘Anzeiger’ instead of ‘Sitzungsberichte.’ 
I] 
7591—No. 23—03 20 


