CHOLOEPUS-—CHROTOM YS. 187 
Choloepus—Continued. 
/ Species: Bradypus didactylus Linnseus, and B. torquatus Iliger, from Brazil. 
) Choloepus: ycoXoiz ovs, lame-footed—in allusion to the fore limb, which has the 
| toes reduced to two; and also probably to the manner in which the animal 
! walks. 
Chondrorhynchus 6G. Fiscuer, 1814. Feree, Urside. 
Zoognosia, III, 142-148, 1814. 
Type (not given, but evidently) Bradypus ursimus Shaw, trom India. ‘Hoe 
animal singulare proprietates Bradypodis et Ursi conjungit."* (See Melursus 
Meyer, 1793.) 
Chondrorhynchus: yóv9pos, cartilage; 9v» yos, snout, muzzle. 
Choneziphius Dovernoy, 1851. Cete, Physeterid:e. 
Ann. Sci. Nat., Paris, 3e sér., XV, Zool., 43, 61-63, 70-71, pl. 2, fig. 5, 1851. 
Type: Ziphius planirostris Cuvier, from the Antwerp Basin, Belgium. 
Extinct. 
Choneziphius: xcv, funnel; J-Ziphius—in allusion to **les deux cavités en forme 
d'entonnoirs creusées dans les os incisifs, à la base du rostre et immédiatement 
en avant des narines." 
Choriotherium Haxrckrer, 1895. Ungulata, ? 
Syst. Phylogenie Wirbelthiere, III, 466, 1895. 
Hypothetical genus from the chalk (‘Kreide’). The supposed ancestor of the 
Bunotheria. 
Choriotherium: xópriov, chorion; 07ozov, wild beast. 
Chorotherium Berra, 1899. Ungulata, Artiodactyla, Agriochceridee. 
Comun. Mus. Nac. Buenos Aires, I, No. 3, p. 79, May 24, 1899. 
New name for Agriotherium Scott, 1898, which is preoccupied by Agriotherium 
Wagner, 1837, a genus of Ferre. 
Extinct. 
Chorotherium: x&pos, land, also the northwest wind; 65pizov, wild beast— 
‘northwestern beast’—in allusion to the type locality (Utah) of Scott’s genus. 
Chriacus Corr, 1883. Creodonta, Oxycleenidie. 
Proc. Acad. Nat. Sci. Phila., May 22, 1883, 80 footnote. 
Type: Pelycodus pelvidens Cope, from the Lower Eocene of northwest New Mexico. 
Extinct. Based on ‘‘a single right mandibular ramus which supports the pos- 
terior four molars." ; 
Chriacus: xpíc, to puncture; d?) point. 
Chronozoon Der Vis, 1883. Sirenia, ? 
Proc. Linn. Soc. New South Wales, VIII, pt. 111, 392-595, pl. 17, 1883. 
Type: Chronozoon australe De Vis, from the Chinchilla drift, Darling Downs, 
Queensland, Australia. 
Extinct. ‘‘The portion of skull . . . consists of the parietal and the upper 
part of the occipital bones.”’ 
Chronozoon: xpovos, time; COov, animal. 
Chrotomys THomas, 1895. Glires, Muridee, Hydromyinee. 
Ann. & Mag. Nat. Hist., 6th ser., X VI, 161, Aug., 1895; Trans. Zool. Soc. Lon- 
don, XIV, pt. vi, 391-393, pls. xxx11, xxxv figs. 8-9, June, 1898. 
Type: Chrotomys whiteheadi Thomas, from Monte Data (alt. 8,000 ft.), northern 
Luzon, Philippine Islands. 
Chrotomys: xps, Xpe@ros, color; 40s, mouse—in allusion to the marking of the 
type species, which is distinguished by a pale stripe down the back. 

* Fischer's statement that the animal inhabits Africa is an error. 
