ZAPODIDiE— ZAPUS— Z. HUDSONIUS— SYNONYMY. 407 



tamaricinus, meridianus LinGrmel."; the author quotes " Cerbillus Desm." as 

 a synonym; the diagnosis of the genus is not applicable to Zap us ; and, as 

 if to clinch the matter, Illiger expressly enumerates "Dipus canadensis Shaw" 

 under a preceding genus, Dipus. Hence it is clear that Meriones, as proposed 

 by Illiger, had no reference, even by implication, to the American type Zapus. 

 But, a few years afterward, in 1825, Fred. Cuvier (Dents des Mammif. etc. 

 p. 187) committed the Gallicism of Meriones, and said : "Le type de ce genre 

 est le dipus americanus, de Barton," without the slightest allusion to Illiger, — 

 just as if he were proposing a new genus. All that he did, however, was 

 to transfer Illiger's name to a totally different generic type, to which Illiger 

 never intended it to apply. The case is parallel with that of Wagler's and 

 Wagner's transferring of Jacidus from certain Old World types to the Ameri- 

 can one. It is immaterial whether or not Meriones is tenable for the group 

 upon which Illiger based it; it certainly cannot stand for any other group. 



Hence it is clear that the American animal never had a name based upon 

 itself, nor any tenable name, until Zapus was proposed. In establishing the 

 genus, I thought it unnecessary to more than briefly allude to the facts in the 

 case ; but, as I observe some indisposition to coincide in this instance with 

 my views, I have thought proper to set forth my reasons at length. 



ZAPUS HUDSONIUS, Cones. 



SYNONYMY. 



Dipus hudsoniits, Zimmermann, Geog. Gesch. ii, 1780, 358, No. 268 (based on the Long-legged Mouse of 

 Hudson's Bay, of Pennant). — Bodd^ert, Elench. Anini. i, 1784, 115 (based on Zimnierinauu). — 

 Scheeber, "Siiug. . . . 8C1, No. 6". — Fischek, Sjrn. Mamm. 1829, 340 (based on Zimmermann). 



GerbUlus hudsonius, Rafinesque, Am. Month. Mag. 1818, 446. — Lesson, Man. i, 1827, 257. 



Meriones hudsonicus, Audubon & Bachman - , Q. N. A. ii, 1851, 251, pi. .-5. 



Jaculus hudsonius, Baird, M. N. A. 1857, 430, pi. 21, f. 5 a-e — Newberry, P. R. R. Eep. vi, 1857, 59 (Cali- 

 fornia). — Baird, P. R. R. Eep x, 1859, Gunnison's & Beckwith's Eoutes, Mamm. p. 8. — 

 Cooper & Suckley, Nat. Hist. Wash. Terr. 1860, 83, 101, 127.— Hayden, Trans. Amer. 

 Philos. Soc. xii, 1862, 147 (Fort Union).— Samuels, Ninth Ann. Rep. Mass. Board Agric. 1862, 

 178 (habits).— GlLFlN, Proc. & Trans Nova Scotia Inst, ii, 1870, 60 (Nova Scotia). — Allen, 

 Bull. Mns. Comp. Zool. i, 1870, 226 (Massachusetts).— Tenney, Am. Nat. vi, 1872, 330, f. 101 

 (habits).— Mekriam, Ann. Rep. U. S. Geol. Surv. Terr, for 1871, 1872, 665.— Ames, Bull. Minn. 

 Acad, i, 1874, 70 (Minnesota).— Allen, Bull. Ess. Inst, vi, 1874, 60, 65 (Wyoming and Utah). 



Zapus hudsonius, C'oues, Bull. U. S. Geol. & Geog. Surv. Terr. 2d ser. No. 5, 1875, 254. — Coues& Yarrow, 

 Zool. Expl. W. 100 Merid. 1875, 99. 



A/us longipes, Zimmermann, Penn. Arkt. Zool. i, 1787, 131 (erroneous identification with Mus longipes auct.). 



Mus canadensis, " Pennant " (merely Latin rendering of " Canada rat " ?). 



Dipus canadensis, Davies, Trans. Linn. Soc. iv, 1798, 157, pi. 8, f. 5, 6 ("Jumping Mouse of Canada"). — 

 Shaw, Gen. Zool. ii, 1801, 192, pi. 161 (after Davies).— Turton, Syst. Nat. i, 1806, 100.— Ord, 

 Guthrie's Geog. 2d Am. ed. 1815, 292.— Fischer. Syn. Mamm. 1829, 339. 



GerbiUus canadensis, Desmarest, Mamm. ii, 1822, 331. — Harlan, Fn. Amer. 1825, 155. — Godman, Am. Nat. 

 Hist, ii, 1st ed. 1826, p. — ; 2d ed. 1831, 94, pi. — ; 3d ed. 1861, 94.— Griffith, Auim. Kingd. 

 v, 1827, 210, No. 624.— Emmons, Rep. Quad. Mass. 1840, 69.— Thompson, Nat. Hist. Vermont, 

 1853, 44.— Hall, Canad. Nat. & Geol. vi, 1861, :_!04 (Montreal). 



