SINETHERES—SIRENE. 633 
Sinetheres—Continued. 
Synextheres GERVAIS, Zool. et Paléont. Frangaises, 2° éd., 570, 1859. 
Type: Hystria prehensilis Linnzeus, from tropical America. 
In the first reference Sinetheres seems to be only a French name, except on 
p. 433, where it is abbreviated (‘S.[imetheres?] prehensilis?). The spelling is 
slightly changed in ‘Dents des Mammiféres,’ p. 256—Sinetherus. 
Synethéres: Gvv ins, living together (AGAssiz). “‘Etym. not apparent." (Cen- 
tury Dict.) 
Sinisus (subgenus of Sus) Hrupr, 1892. Ungulata, Artiodactyla, Suid:e. 
Mém. Hist. Nat. Empire Chinois, II, pt. 2, pp. 102, 106, 107, 1892. 
Species: ‘Les sangliers chinois. It is not clear whether Sinisus is intended as 
a subgenus or merely as a descriptive term for the hogs of China. 
Sinisus: New Lat. Sina, China; +Sus. 
Sinopa Lripy, 1871. Creodonta, Proviverride. 
Proc. Acad. Nat. Sci. Phila., July 11, 1871, 115-116 (description said to be 
insufficient); Ann. Rept. Geol. & Geog. Surv. Terr., for 1871, 555-356, 1872. 
Type: Sinopa rapax Leidy, from the Bridger Eocene near Fort Bridger, Wyoming. 
Extinct. Based on a ‘‘ portion of the ramus . . . The specimen contains two 
teeth, apparently the last premolar and the sectional molar, behind which are 
portions of two other teeth." 
Sinopa: A name ‘‘according to Prof. Hayden . . . applied by the Blackfeet 
Indians to a small fox." (Lzrpv, Rept. U. S. Geol. Surv. Terr., I, 117, 1873.) 
Sipalocyon AmEGHINO, 1887. Marsupialia, Borhyzenidee. 
Enum. Sist. Especies Mamít. Fós. Patagonia Austral, 8-9, Dec., 1887. 
Type: Sipalocyon gracilis Ameghino, from the lower Tertiary of southern Patagonia. 
Extinct. 
Sipalocyon: 6iados, deformed; «ocv, dog. 
Sipalus G. Fiscner, 1818. Marsupialia, Phalangerid:e. 
Zoognosia, II, pp. ix, 581-582, 1815. 
New name for Phalanger Storr, 1780, and Coescoes Lacépéde, 1799, which are not 
Latin or Greek names. Type: Didelphis orientalis Pallas, from the Moluccas. 
Sipalus: 6irados, deformed—‘‘propter pedem posticum phalangibus concretis 
quodammodo deformem." (FISCHER. ) 
Siphneus Brants, 1827. Glires, Murid:e, Myotalpine. 
Het Geslacht Muizen, 19-23, 1827. 
Siphenus Gray, List Osteol. Spec. Brit. Mus., pp. xiv, 52, 1847 (misprint). 
Type: Mus aspalax Pallas, from Siberia. 
Name antedated by Myotalpa Kerr, 1792. 
Siphneus: 6ivevs, mole. 
Siphonocetus Corr, 1895. Cete, Baleenidee. 
Proc. Am. Philos. Soc., XXXIV, No. 147, pp. 140-141, pl. vr figs. 3-5, May 29, 
1895; Am. Naturalist, XXIX, No. 342, p. 573, June 3, 1895 (type fixed.) 
Type: Balzena prisca Leidy, from the Yorktown (Middle) Neocene beds of West- 
moreland County, Virginia (locality fide Lerpv, Journ. Acad. Nat. Sci. Phila., 
2d ser., VII, 441, 1869). 
Extinct. Based on a fragment of a jaw and a caudal vertebra. 
Siphonocetus: Gí av, G6íocavos, tube, pipe; «zros, whale—in allusion to the 
alveolar grove which is distinct, ‘roofed over, and perforate.’ 
Sirene Linx, 1794. Sirenia, Hydrodamalidee. 
Beytr. Naturgesch., I, pt. 1, 67-68, 1794; Mag. Thiergesch., I, pt. 11, 40, 1794. 
Type: Sirene borealis (=Trichechus manatus ( borealis Gmelin), from Bering 
Island, Bering Sea. ‘‘Manatus unterscheidt sich schon von den Trichechis 
sehr und verdiente deswegen ein eigenes Geschlecht auszumachen, noch mehr 
aber ist Sirene nicht allein von den Trichechis, sondern vom Manatus verschie- 
den." (Ling, l. c., pp. 67-68.) 
