694 . INDEX GENERUM MAMMALIUM. 
Schizostoma—Continued. 
Type: Schizostoma minutum Gervais, from Capella-Nova, Brazil. 
Name preoccupied by Schizostoma Bronn, 1835, a genus of Mollusca. 
Schizostoma: GyíCc, to split; 6óróua, mouth—in allusion to the grooved or split 
lower lip. 
Schizotherium Gervais, 1876. Ungulata, Ancylopoda, Chalicotheriidze. 
Zool. et Paléont. Gén., 2° sér., 3° livr., 58-59, 1876 [‘‘pl. x1 figs. 13, 14’’—not 
published? |]. 
Type: Ancylotheriuin priscum Gaudry, from the Phosphorites of Quercy, France. 
Extinct. 
Schizotherium: Gyítc, to divide; 07ptov, wild beast—in allusion to the terminal 
fissure of the phalanges. 
Schoinobates (subgenus of Petaurus) Lesson, 1842. — Marsupialia, Phalangeridee. 
Nouv. Tableau Régne Animal, Mamm., 190, 1842. 
Type: Petaurista leucogenis Temminck, said to be from Japan; but, according to 
Wallace, there are no marsupials in Japan. 
Schoinobates: Gyoivofó&z15, ropedancer—in allusion to its arboreal habits. 

Sciamys Amecuino, 1887. Glires, Erethizontidee. 
Enum. Sist. Especies Mamif. Fos. Patagonia Austral, p. 9, Dec., 1887. 
Species: Sciamys principalis Ameghino, and S. varians RSS from the lower 
Tertiary of southern Patagonia. 
Extinct. 
Sciamys: 6ki&, shadow: vs, mouse. 
Scirteta (subgenus of Alactaga*) Branpt, 1844. ae Dipodid:e. 
Bull. Cl. Phys.-Math. Acad. Imp. Sci., St.-Pétersbourg, II, Nos. 14-15, pp. 220- 
225, 230, Jan. 20, 1844. 
BDoviss and subspecies, 8: Alactaga jaculus (= Dipus jaculus Gmelin), A. jaculus 
macrotis Brandt, A. jaculus brachyotis Brandt, from southern Siberia; A. acontion 
(= Dipus acontion Pallas) , from southern Russia and Siberia; A. elater (= Dipus 
elater Lichtenstein), from the Kirghiz steppes; A. indica Gray, from Quetta, 
Baluchistan; A. arundinis F. Cuvier, from North Africa; and A. alaucotis 
(= Dipus alaucotis Wagner), from Arabia. 
Name preoccupied by Scirtetes Hartig, 1838, a genus of Hymenoptera 
Scirteta: Oxiptytns, leaper. 
Scirtetes WAcNER, 1841. Glires, Dipodidee. 
Gelehrte Anzeiger, K. Bayerisch. Akad. Wiss., München, XII, No.51, p. 413, Mar. 
12, 1841; Wiegmann's Archiv Naturgesch., VII, pt. r, 119-120, 1841; Suppl. 
Schreber’s Sáugthiere, IIT, 285, 1843. 
New name for the ‘barbaric’ Alactaga F. Cuvier, 1836. 
Name preoccupied by Seirtetes Hartig, 1838, a genus of Hymenoptera. 
Scirtomys (subgenus of Alactaga) Brann, 1844. Glires, Dipodidee. 
Bull. Cl. Phys.-Math. Acad. Imp. Sci., St.-Pétersbourg, II, Nos. 14-15, pp. 220, 
230, Jan. 20, 1844. 
Type: Alactaga tetradactylus (Lichtenstein), from the Libyan Desert, northeastern 
Africa. 
Scirtomys: 6Kiptd@, to leap; “0s, mouse—i. e., a jumping mouse. 
Scirtopoda (subgenus of Dipus) BnANpr, 1844. Glires, Dipodidee. 
dull. Cl. Phys.-Math. Acad. Imp. Sci., St.-Pétersbourg, II, Nos. 14-15, pp. 212- 
217, 230, Jan. 20, 1844. 
Comprises 2 sections, Halticus Brandt (including Dipus halticus Iliger), and Hal- 
toinys Brandt (including D. aegyptius Hemprich & Ehrenberg, D. hirtipes Lich- 
tenstein, D. macrotarsus Wagner, and D. mauritanicus Duvernoy ). 
Scirtopoda: CKIPT CO, to leap; mous, foot. 
*Alactaga was renamed Scirtetes by Wagner in 1841; Scirteta Brandt is a subgenus 
of the latter, and includes only part of the species. 

