PLEOPUS—PLESIDISSACUS. 547 
Pleopus—Continued. 
Type: Pleopus nudicaudatus Owen (=Hypsiprymnodon moschatus Ramsay), from 
Queensland, Australia. 
Pleopus: mAéos, full, complete; zovs, foot—‘‘in reference to the full or type 
mammalian number of toes [5] of the hind foot’’ (Owxx). 
Pleregnathus Laizer & Partev, 1888. Ungulata, Artiodactyla, Anoplotheriide. 
Ann. Sci. Nat., Paris, 2° sér., X, Zool., 341 footnote, Dec., 1838. 
Includes the genera Anoplotherium Cuvier, and Oplotherium Laizer & Parieu. 
**Suivant un large systéme de zooclassie, on pourrait considérer |’ Anoplothére 
et l'Oplothére comme deux sections d'un grand genre pour lequel nous pro- 
poserons le nom de Pleregnathus." (LAtzer & PanrEU). 
Extinet. 
Pleregnathus: wAnpys, full; yvabos, jaw—in allusion to the full complement of 
44 teeth which (in Anoplotherium) are arranged in a series unbroken by a 
diastema. 
Plerodus (subgenus of Crocidura) Scuutzr, 1897. Insectivora, Soricidee. 
Mamm. Europea, in Helios, Abhandl. und Vortriige Gesammtgebiete Natur- 
wiss., XIV, 90, 1897 (sep. p. 18). 
Type: Crocidura suaveolens Blasius, from the Mediterranean region. 
Plerodus: zAnpyns, full, complete; dd0vs, tooth. 
Plesiadapis Gervais, 1877. Primates, Plesiadapide. 
Journ. de Zool., Paris, VI, 76-77, figs. 1, 2, 1877. 
Type: Plesiadapis tricuspidens Gervais, from the Eocene of Rilly, in the vicinity 
of Reims, France. 
Extinct. Based on several teeth. 
Plesiadapis: 1À7610c, near;* -- Adapis—irom the characters of the canine and last 
upper molar. 
Plesiarctomys Brayarp, 1848-52. Glires, Sciuride. 
Bravarp, in Gervais’ Zool. et Paléont. Francaises., II, expl. pl. xrvr, p. 2, 
1848-52; 2 éd., 24-95, pl. xivi fig. 13, 1859. 
Type: Plesiarctomys gervaisii Bravard, from the Eocene of la butte de Perréal, 
near Apt, Dépt. Vaucluse, southeastern France. 
Extinct. Based on part of the left lower jaw. 
Plesiarctomys: zÀ96ios, near; + Arctomys. 
Plesictis Pomen, 1846. Ferse, Mustelidee. 
Bull. Soe. Géol. de France, 2° sér., III, feuilles 23-30, p. 366, July, 1846; Cat. 
Méth. Vert. Foss. Bassin de la Loire, 59-62, 1854. 
Type: Mustela genettoides (= Mustela plesictis Laizer & Parieu) , from the Miocene of 
Cournon, France. 
Extinct. 
Plesictis: mAnotos, near; 7kt1s, weasel. 
Plesidacrytherium (see Plesydacrytherium ). Ungulata, Anoplotheriide. 
Plesidissacus Lemoine, 1894. Creodonta, Mesonychid:e. 
Bull. Soc. Géol. de France, 3° sér., X XI, for 1898, No. 5, pp. 353-354, 363, 
pl. 1x fig. 2, Apr., 1894. 
Type: Plesidissacus europeus Lemoine, from ‘la Faune Cernaysienne’ (Eocene), 
near Reims, France. 
Extinct. Based on ‘des dents absolument intactes . . . du type carnassier.’ 
Plesidissacus: mAn6ios, near; + Dissacus. 

*The prefix Plesi-, or Plesio-, near, is commonly used to denote relationship, but the 
special characters which indicate this relationship are not always stated, 
