l20 Jf<rr!(it)i — Four ?^iir Peornvhx fron) ^ff-.i'lco. 



tajacn group, and (/>) i\w iilhiro.^tris grouj). In Ixttli gr()iii>s the 

 male is larger than the female and has larger teeth. In some 

 forms the sexual disparity in size is small; in others it is great. 

 The Peccaries of the tajucu group inhabiting Mexico and the 

 Ignited States ap])ear to hrcak up into li forms, as follows: 



Tdi/dsxii (iii<iiil(itii.-< (Cope) Texas and northeastern Mexico. 

 (iiKjiiliitns s'>/i(>ri('/isis (Mearns). Southern Arizona aiul 



Sonoi'a. 

 (i/H/i/I(/fi/s liiitHcrdlis nol). Colinia to "^I'ehuantepec. 

 (inijiildtnK /-/-((xsus nol). Metlaltoyuca, Puchla (and 11 uc- 



huetaii, (■hia))as). 

 d/d/d/dfds jincdfdni n.'ils noli. \ ucataii. 

 /id/ids Mci-riani." (A <l\varf insular species) Cozumel 



Island. 



In comparing skulls of the t<ijdru'dn(jiildtn.^ sei'ies with those 

 of the alhiroKtria series, such striking and important differences 

 aj»pear that it seems necessary to recognize the two grou]»s as 

 constituting separate subgenera. Indeed .1. K. (4ray, in 18G8, 

 ,separate(l them as full genci-a, i-estrictiiig Cuvier's generic name 

 jHcoti/Ji's to J<il)idtns {=dll)Ir<)f(frl.^) and a(loi)ting Fischer's name 

 Ndtoj>liords iuv the CoUai'cd Peccai-y. (Proc. Zool. Soc. Lon- 

 don. 1868, pp. 2 1, 43-45.) 



But these names [JJicofi/Z's and Xofo/i/ioz-i/s, both proposed in 

 1817) are pure synonyms of 7}/i/dssd 1814. and cannot there- 

 fore be restricted to either of the two original species, both 

 having been included by Fischer in the original diagnosis of 

 his genus l)n/dsi<n. This leaves the dJhiro.^trls gi-oup without 

 a name. T(» supply the dcticiencv I propose to call it O/ii/nsi/s. 



Subii'iMius Olidosusj nob. 



E.rtrr/nfl clKU'iirterK. — Si/.e larye: set;r oN^er poslcrinr pui'l ol' eyes very 

 l:ir<:p iind louii'. rcacliinii- t)iu-k iioarly to tij) of ears: occiput and npck 

 boarinjz: a maiie of lon^- flat black bristles which in passing backward 

 become greatly elongated (lose tlieir points and become frayed at tips). 

 spread out laterally overlying the short annulalcd bristles of sides of 



*See antea, p. 102. 



fOlidus, slinking; sns, hog. 



