498 INDEX GENERUM MAMMALIUM. 
Mirounga—Continued. 
Species, 5: Phoca cristata Gmelin, from the North Atlantic; Phoca proboscidea 
Péron & Lesueur, Mirounga patagonica Griffith; Phoca ansonii Desmarest, and 
Phoca byronii Blainville, from the Southern Seas. 
Mirounga: Miouroung, native name of Phoca proboscidea in Australia. 
Mirza Gray, 1870. Primates, Lemuridze. 
Cat. Monkeys, Lemurs & Fruit-eating Bats Brit. Mus., 131, 135-136, 1870. 
Type: Microcebus coquerelii Schlegel & Pollen, from Madagascar. 
Mirza: Persian mirza, prince; said to be a corruption of amirzadeh, son of a 
prince (from amir, prince; zadeh, son). 
Misothermus Henser, 1855. Glires, Muridze, Microtinze. 
Zeitschr. Deutsch. Geol. Gesellsch., VII, Heft 5, pp. 490-497, pl. xxv, figs. 12-14, 
May-July, 1855; MinLER, N. Am. Fauna, No. 12, p. 16, July 23, 1896. 
Type: Myodes torquatus ( — Mus torquatus Pallas), from the Obi River, Siberia. 
Name antedated by Dicrostonyx Gloger, 1841. 
Misothermus: 16€@, to hate; 6£pu5, heat—in allusion to the animal’s northern 
habitat. 
Missourium kocu, 1840. Ungulata, Proboscidea, Elephantid:ze. 
[Am. Journ. Sci. & Arts, XXXVII, No. 1, p. 192, Oct., 1839, common name 
only—‘ Koch’s Missourian.’ ] 
Oken’s Isis, 1840, 905-906; Froriep’s Neue Notizen, Erfurt, XIII, No. 271, pp. 
104-105, Jan., 1840; A Short Description of Fossil Remains found in the State 
of Missouri, 8vo, St. Louis, 2-3, 1840; Die Riesenthiere der Urwelt, Berlin, 
43-59, Taf. vin, 1845. 
Missurium Kocn, Jahrb. Mineralogie, 1840, 736; ''Beschreib. des Missurium 
theristocaulodon (Koch), oder Missuri-Leviathan (Leviathan missuriensis), 
Magdeburg, 1844’’ (fide ENGELMANN, Bibl. Hist. Nat.); ScuppER, Nomenclator 
Zool., pt. 1, 214; pt. 11, 199, 1882. 
Type: Missourium kochii, 1840 (= M. theristocaulodon Koch, 1844) from the 
Pleistocene of Sulphur Springs, near Kimmswick, Jefferson County, 22 miles 
south of St. Louis, Missouri. In 1845 Koch gave the type locality as Bourbeuse 
River, Gasconade County, but Lydekker (Cat. Foss. Mamm. Brit. Mus., IV, 16, 
1886), states that the skeleton in the British Museum, which was purchased 
from Koch about 1844, came from Benton County, Missouri. 
Extinct. Based on a skeleton. 
Missourium: Missouri, the State where the remains were found; --neuter end- 
ing —um, to indicate an extinct group. 
Mixocebus Perers, 1874. Primates, Lemuride. 
Monatsber. K. Preuss. Akad. Wiss., Berlin, Nov., 1874, 690-693, Taf. 1-2. 
Myxocebus Trovessart, Rev. et Mag. Zool., 3° ser., VI, 165, 1878; Cat. Mamm. 
Viv. et Foss., Primates, 36, 1879. 
Type: Mixocebus caniceps PETERS, from Madagascar. 
Mixocebus, utz0-, mixed; Kos, a long-tailed monkey. 
Mixochoerus (see Myxocherus). Ungulata, Artiodactyla, Anoplotheriidze. 
Mixodectes Corr, 1883. Glires, Proglires, Mixodectide. 
Am. Naturalist, XVII, 191, Feb., 1883; Palezeont., Bull. No. 36, 1883; Proc. Am. 
Philos. Soc., XX, 559-561, Mar. 16, 1883; MarrHEw, Bull. Am. Mus. Nat. 
Hist., N. Y., IX, 265-267, fig. 1, Nov. 16, 1897; OsBorn, ibid, XVI, 205-207, 
figs. 30-32, June 28, 1902 (ordinal position); Hay, Cat. Foss. Vert. N. Am., 
Bull. 179, U. S. Geol. Surv., 786, 1902 (type fixed). 
Species: Mirodectes pungens Cope (type), and M. crassiusculus Cope, from the 
Eocene of New Mexico. 
Extinet. Based on lower jaws. 
Mixodectes: ui&0-, mixed; ó7)«r75c, a biter. 
