439 INDEX GENERUM MAMMALIUM. 
Morenella Pa4rwrEn, 1903. Glires, Octodontide. 
Science, new ser., XVII, 873, May 29, 1903. 
New name for Morenia Ameghino, 1886, which is preoccupied by Morenia Gray, 
1870, a genus of Chelonians. 
Morenella:* Moreno; + suffix, -ella. In honor of Dr. Francisco P. Moreno, 1852-, 
founder of the La Plata Museum, Argentina; author of ‘Southern Pata- 
gonia,’ 1879, ‘ Voyage of the Andine Regions of Patagonia,’ 1896, ‘ Argentine 
Evidence,’ 1900, etc. $ 
Morenia AMEGHINO, 1886. Glires, Octodontide. 
Bol. Acad. Nac. Cien. Córdoba, IX, 51-55, 1886. 
Type: Morenia elephantina Ameghino, from the older Tertiary formations of 
Paraná, Argentina. 
Name preoccupied by Morenia Gray, 1870, a genus of Chelonians. Replaced by 
Morenella Palmer, 1903. 
Extinct. Based on the first upper molar of the left jaw. 
Morenia: In honor of Dr. Francisco P. Moreno, 1852-. 
Mormon (subgenus of Cynocephalus) WAGNER, 1839. Primates, Cercopithecide. 
Suppl. Schreber’s Sáugthiere, I, 164-168, 1839; Lesson, Species Mamm., 49, 
111-114, 1840; RertcHEeNBacn, Vollstind. Naturgesch. Affen, 158-163, 1862 
(raised to generic rank). 
Species: Simia mormon Alstromer (type), and ^. /eucophea Cuvier, from West 
Africa. 
Name preoccupied by Mormon IMlliger, 1811, a genus of Birds. (See Mandril 
Voigt, 1831.) 
Mormon: jropwerv, a bugbear, goblin—from its unprepossessing appearance. 
Mormoops Lracu, 1821. Chiroptera, Phyllostomatide. 
Trans. Linn. Soc. London, XIII, pt. 1, 76-78, pl. vir, 1821; Ren, Proc. Acad. 
Nat. Sci. Phila., June 11, 1902, 160-172 (revision). 
Mormops Cuvier, Dict. Sci. Nat., LIX, 422, 1829; GroaER, Hand- u. Hilfsbuch 
Naturgesch., I, pp. xxviii, 51, 1841. 
Type: Mormoops blainvillii Leach, from Jamaica. 
Mormoops: uopuc, bugbear; ©, face—irom its extraordinary physiognomy. 
Mormopterus (subgenus of Vyctinomus) PETERS, 1865. Chiroptera, Noctilionide. 
Proc. Zool. Soc. London, 1865, 468; Monatsber. K. Preuss. Akad. Wiss. Berlin, 
1865, 258. 
Type: Nyctinomus ( Mormopterus) jugularis Peters, from Antananarivo, Madagascar. 
Mormopterus: oppi, bugbear, goblin; wreporv, wing—i. e., a ‘ winged goblin.’ 
Morodactylus Gorpruss, 1820. Marsupialia, Phalangeride. 
Handb. Zool., II, 445, 1820. 
Type: Lipurus cinereus Goldfuss, from eastern Australia. (See Phascolarctos 
Blainville, 1816. ) 
Morodactylus: ucopós, dull, sluggish; ó&«rvAos, finger. 
Moropus Mansu, 1877. Ungulata, Ancylopoda, Chalicotheriide. 
Am. Journ. Sci. & Arts, 3d ser., XIV, 249-251, Sept., 1877; Hay, Cat. Foss. Vert. 
N. Am., Bull. 179, U. S. Geol. Surv., 691, 1902 (type fixed). 
Species, 3: Moropus distans Marsh (type), from the John Day Miocene of Oregon; 
M. senex Marsh, and M. elatus Marsh, from the lower Pliocene of Nebraska. 
Extinct. ‘‘ Based mainly upon the bones of the feet." 
Moropus: u4cpós, dull, sluggish; zovs, foot—‘sloth foot,’ from the supposed 
affinities of the animal. The genus was originally described from bones of the 
feet, which were considered to belong to an Edentate. 

*This name is not preoceupied by Morinella Meyer & Wolf, 1810, or by Morinellus 
Bonaparte, 1856, both genera of Birds, which in addition to being spelled differently 
are derived from different roots. 
