GG INDEX GENERUM MAMMALIUM. 
Ziphiorrhynchus—Continued. 
Name preoccupied (?) by Ziphorrhynchus Swainson, 1837, a genus of Birds. 
Ziphiorrhynchus: Ziphius; by xos, snout—trom “the general external form of 
the head [which] exactly resembles that of Ziphius." (BURMEISTER. ) 
Ziphirostrum (Van Benepen) Du Bus, * 1868. Cete, Physeteride. 
[Quart. Journ. Geol. Soc. London, XX, 396, Noy. 1, 1864,f nomen nudum. ] 
[Ziphirostris VAN BENEDEN, Bull. Acad. Roy. Sci. de Belgique, 2° sér., XXV, 
No. 6, p. 114, 1868—Z. hemixemi, nomen nudum.] 
Ziphirostrum Du Bus, ibid., XXV, No. 6, pp. 622-625, 1868. 
Species, 5: Ziphirostrum turninense, Z. tumidum, Z. marginatum, Z. levigatum, and 
Z. gracile, from the Antwerp Crag, Belgium. 
Extinct. 
Ziphivostrum: Ziphius; Lat. rostrum, beak, snout. 
Ziphius G. Cuvier, 1823. Cete, Physeteridie. 
Recherches Ossem. Foss., nouv. éd., V, pt. 1, 350-357, pl. xxvu, figs. 3, 4, 7, 9, 
1823; Frower & LypeKKER, Mamm., Living & Extinct, 254, 1891 (type fixed). 
Niphias (‘Ercuwaup’) Murcuison, Philos. Mag., new ser, XXII, 560, Jan.-June, 
1843. 
Niphius AGAsstz, Nomenclator Zool., Index Univ., 389, 392, 1846; WALLACE, Geog. 
Dist. Animals, II, 208, 1876. 
Species, 3: Ziphius cavirostris G. Cuvier (type), from Fos, Bouches-du-Rhone, 
France; Z. planirostris G. Cuvier, from the Antwerp basin, Belgium; and Z. longi- 
rostris G. Cuvier, locality not stated. 
According to Cope (Proc. Am. Philos. Soc., XXXIV, 137, 1895), the name is 
preoccupied—by NXiphias (?) Linnzeus, a genus of Pisces. 
Ziphius: &uiós, swordfish. 
Zonoplites GrocEn, 1841. Edentata, Dasy podid:e. 
Hand- u. Hilfsbuch Naturgesch., I, p. 114, 1841; THomas, Ann. & Mag. Nat. Hist., 
6th ser., XV, 191, Feb. 1, 1895. 
Species: The armadillos with four toes on the fore feet, the two middle toes being 
larger than the others. 
Zonoplites: Gov, belt, girdle; ózAír5s, armed 
of the carapace. 
in allusion to the movable bands 

Zooligus Avwanp, 1853. Ungulata, Artiodactyla, Anoplotheriid:e. 
AYMARD, in Pictet's Traité Paléont., 2° éd., I, 340, 1853; Comptes Rendus, Paris, 
XXXVIII, 675, 1854. 
Type: Zooligus picteti Aymard, from the deposits of Puy, France. 
Extinct. 
Zooligus: C@ov, animal; dAzyos, 0Aí£y ov, small—in allusion to its size, **un peu 
plus petit que le daman.”’ 
Zorilla OkxEN, 1816. Fer:z, Mustelide. 
Lehrb. Naturgesch., 3ter Theil, Zool., 2te Abth., pp. xi, 1000, 1816 (subgenus of 
‘Muffer’); I. Grorrroy, Dict. Class. Hist. Nat., X, 215-216, June, 1826; 
F. Cuvier, Dict. Sci. Nat., LIX, 449, 1829 (raised to generic rank). 
Type: Viverra zorilla Erxleben, from South Africa. 
Zorilla: Span. zorilla, zorillo, dim of zorra, zorro, fox. 
Zotodon (see Xotodon ). Ungulata, Toxodontia, Toxodontid:e. 
Zugodon (see Zeuglodon). Cete, Basilosaurid:e. 
Zygeenocephalus Murray, 1862. Chiroptera, Pteropodid:e. 
Proc. Zool. Soe. London, 1862, pl. 1. 

*'This genus is credited to Van Beneden, but published in an article by Du Bus 
(p.622). It is not clear whether the species are described by Van Beneden or 
Du Bus. 
t Quoted by Huxley from Van Beneden’s paper, as ‘not yet published.’ 
