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THE liATUACHIA OF NORTH AMEKICA. 



393 



It will be readily .seen by the Ibllowiiig table that the geographical 

 distribution of this family is almost entirely in the Old World : 



The only genns of the Nearctic fauna is, then, Eaua. 



KANA Liuu. 



S.VHtenia Niitnr;i> x, p. HiVl, pars; AVajjler Syst. Aiiiph., IHSO. p. 203; Giiutb., 

 Cat. IJatr. .Sal., p. 8; Cope, Nat. Hi.st. Rev., Ic.").''), p. 117. 



//(//arnim Tachndi, /. c, p. 78; Giiiitli., /. c, p. 71; ; Cope, /. c. 



rohipcddtin, up., Tsclmdi, /. c, ]>. 7;{; Giiiitb., I. c, p. 77. 



Stionmilopim Tsclmdi, /. c, p. 71). 



I'lixiiephdliin 'I'hi'uhiuli, /. v., p. f'^i; Copo, I. c. 



I'yjicvphaliis, sp., Dnui. A IJilir., /. c, p. 442. 



LiiniodjilcH Diiiii & Hilir., 1. c, 510. 



I'lloithyhu Fitziiiff. !Syst., Ri'pt., I., p. 31. 



Tomopienna (Bilir.) (iiintli., /. c, p. 7. 



f<pli(initlicca (Jiiiilh., /. v., p. 20. 



l>il■l■o[|loKnli^^^ Ellin. I'roci'iHl. Zool. Soc, lri()0, p. 158. 



Ilvjilohnliachiix Potcis Moil. Hcrl. Ac, 180:?, p. 44".); Cope, 1. c. 



Tachiihnlmrhun (iioii KclVrstcin), Mivart, I'loc. Zool. Sue, 1868, p. 559. 



CHiinliirmix Mivart, ihitl., liUVJ, j>. 'i'iT. 



Mitlliduia Hii"";;cr, AUliaiidl. Sciiek. lies., XII, 1881, p. 417. 



Oiiiosteriium with osseous style; no frontoparietal fontanelle; eth- 

 nioitl bone ossilie«l above ; vestibule of the ear funetional ; Eustachian 

 tubes open; vomerine teeth present; tongue with two i)osteriorcornua; 

 fingers free; toes webbed ; ossiflcation of skull not penetrating the skiu, 

 which is therefore free. 



This genus contains, according to the latest enumeraticui (that of 

 Mr. Boulenger,) one hundred and eight species, which belong mostly to 

 the Old World. The family of Itanidte, indeed, is only represented in 

 the \Vesteru Homisphere by four other geuera, of the Neotropical realm, 



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