394 INDEX GENERUM MAMMALIUM. 
Heterosciurus— Continued. 
Species, 18, from Asia and Malaysia: Sciwrus erythreus Pallas ( —S. ferrugineus F. 
Cuvier, type), S. hippurus I. Geoffroy, S. prevostii Desmarest, S. lokrioides 
Hodgson, S. lokriah Hodgson, S. leucomus Müller, S. a/stoni Anderson, 5. pernyi 
A. Milne-Edwards, S. rufigenys Blanford, S. modestus Müller & Schlegel, S. 
diardii (Temminck) Jentink, s. chinensis Gray, 5S. tenuis Horsfield, S. philippin- 
ensis Waterhouse, S. steeri Günther, S. rosembergii Jentink, S. murinus Müller & 
Schlegel, and S. /is Temminck. 
Heterosciurus: &repoz, other, different; --Sciwrus—in allusion to the differences 
between this group and true Sciurus. 
Heterotalpa* (subgenus of Ta/pa) PETERs, 1863. Insectivora, Talpide. 
Handb. Zool., I, 6ter Bogen, 86, Sept., 1865. 
Type: Tulpa wogura Temminck, from Japan. (See Mogera Pomel, 1848.) 
Heterotalpa: £r&pos, other, different; - Talpa—i. e., different from true Tulpa. 
Heterotherium BLAINvILLE, 1838. Marsupialia, Amphitheriidee. 
Comptes Rendus, Paris, VII, No. 8, p. 417, 1 pl. figs. 1-5, July-Dec., 1838. 
Species: Didelphis prevostii Cuvier MS., and D. bucklandii Broderip, from Stones- 
field, England. *'Il est plus certain que cet animal doit former un genre dis- 
tinct auquel on pourrait donner le nom de Heterotherium ou d' Amphitherium.”’ 
Extinct. Based on lower jaws. 
Heterotherium: &r&pos, other, different; 077p1ov, wild beast. '*On pourrait donner 
le nom de Zeterotheriwum ou d'4mphitheriwin, afin d'éviter les inductions que 
l'on pourrait tirer de l'existence si ancienne d'un mammifére de la classe 
des Didelphes." @BLAINVILLE. ) 
Hexaprotodon (subgenus of Hippopotamus) FALcoxER & CAvrTLEY, 1836. 
Ungulata, Artiodactyla, Hippopotamid:e. 
Asiatic Researches, Calcutta, XIX, pt. I, 51, 1836. 
Species: [Hippopotamus sivalensis Falconer & Cautley, and HH. dissimilis Falconer & 
Cautley, from the Pliocene of the Siwalik Hills, India. 
Extinct. 
Hexaprotodon: £&,six; m Gros, first; d6@v=66o0vs, tooth—in allusion to the six 
incisors in each jaw. 
Hexodon Corr, 1884. Edentata, Ganodonta, Conoryctidze. 
Am. Naturalist, X VIII, 794, 795-796, fig. 3 in text, Aug., 1884; Trans. Am. Philos. 
Soc., new ser., XVI, pt. II, 316-317, 1888 (under Conoryctes). 
Type: Hexodon molestus Cope, from the Puerco Eocene of New Mexico. 
Name preoccupied by Hexodon Olivier, 1789, a genus of Coleoptera. 
Extinct. Based on * the superior and inferior dentitions of a single individual." 
Hexodon: €&, six; ó0cov —080v«, tooth—in allusion to the three premolars on 
^ach side, in contrast with those of related genera in which the number is four. 
Hinnulus OaiLBy, 1837. Ungulata, Artiodactyla, Cervide. 
Proc. Zool. Soe. London, for 1836, No. xrvrir, 136, June 27, 1837. 
No species known. ‘‘Two [genera Hinnulus and Capreolus] are more especially 
indicated . . . [and there is] every reason to believe in their actual existence, 
and to anticipate their discovery. They will be characterized nearly as fol- 
lows,t and will probably be found, one in the tropical forests of the Indian 
Archipelago, and the other on the elevated table lands of Mexico or South 

* Heterotalpa may not have been properly published. Peters’ ‘Handbuch,’ although 
printed, seems never to have been generally distributed, and the copy examined is 
perhaps unique. It lacks both title-page and date and is deposited in the library of 
the * Zoologische Sammlungen, Berlin. 
T Hinnulus: *Rhinaria magna. Sinus lachrymales distincti, Fosse interdigitales 
nulle.  Follieuli inguinales nulli, Mamm:e quatuor." 
