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. Bulletin - United States National Museum. Science. Temppr These series are not probably genetic, as some of the species have been most likely derived from the Old World, The R. septentrionalis, however, may be very probably ancestral to the forms of the Cates- biana series, and perhaps of others. The species of Eana are well protected from enemies by an extremely acrid secretion of the skin. An animal of much superficial sensitive- ness is not likel}^ to take a frog into the mouth a second time. Do- mesticated dogs and cats avoid them, but snakes evidently have no such scrup
. Bulletin - United States National Museum. Science. Temppr These series are not probably genetic, as some of the species have been most likely derived from the Old World, The R. septentrionalis, however, may be very probably ancestral to the forms of the Cates- biana series, and perhaps of others. The species of Eana are well protected from enemies by an extremely acrid secretion of the skin. An animal of much superficial sensitive- ness is not likel}^ to take a frog into the mouth a second time. Do- mesticated dogs and cats avoid them, but snakes evidently have no such scruples against feeding on them. RANA VIRESCENS Kalm.* Resa til Nona America, iii, 1861, p. 46 ; Schreber, cler Naturforscher, xviii, 1782, p. 185; Pi. iv. Ganuan, Ball. Esses Iast.,xvi, p. 41. Eena halecina " Kalm," Schreber, /. c, nee. Icalmii ; Daudin (Kalm), Hist. Nat., Reptil., vm (1803), 122, 432; lb. Hist. Nat. Rain., etc. (1803\ 63 ; Harlau, Sillim. Amer. Jour. Sci., X (1825), b. 1. ; Journ. Ac. Phila., v (1827), 337; 1 b. Med. aud Phys. Rept.(1835), 102-224 ; Storer. Rept. Mass. Reptil. (), 237 ; Holb., N. Amer. Herp., 1st ed., i (1836), 89, xiii; 1 ed,iv (ld42), 91, xci; Dnm. & Bibr.,,viii (1841), 352; Tliompsou, Nat. Hist. Vt. (1842), 120; De Kay, , 111(1842), XX, fig. 49; Hallow., Proceed. Ac. Phila. (1856), 141. Bana aqiiaUca (water frog), Catesby, Carol., ii (1743), 70; Klein, Quadruped, p. 119. Sana pipiem Gm., cd. L, Syst. Nat. (178S), 1052, 28; Bonnaterre, Eucyclop. Meth. Erpet. '',1789), 5, ix, fig. 2 ; Schueider, Hist. Amph. fasc. 1 (1799), 153; Shaw, Gen. Zool., Ill, Amph. (1802), 105. Eana utricularia Harlan, Sillim. Journ., x (1825), 60; Journ. Ac. Nat. Sc.,v (1827), 337 ; 1 b. Med. and Phys. Rept. (1835), 102, 223. * Plates 50, figs. 1, 2; 51, figs. 1, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
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