, ' GEOMYIIUC-OKOMYS lilSriDUW. 010 



;,. GEOMYS HISPIDUS, LcC. 



,, ,„, 1,^ The Quarhll, or Central Amcrlran Porkct Uophpr. i 



Saooophorm quaMI, Oiiay, V. Z. 8. xl, 164:1, 70, cz Cobon, Vem Taz, dncr. nulla!— Okhr., Cat. lioniM Dr. 



Mils. ISti'i, !»:i. 

 Oeomyi hitpidui, LkC, Proo. Acad. Nat. Sci. Philn. ia"2, 158 (ilimcr. orlR.) — IUini>, M. N. A. IWIT, ;tflfi, pi. 



•^■i, {. 4 fl-d.— CoiiKH, Troo. I'blla.Acnd. 1H7&, l:U.— C'()i!i':i*, t'owull'a Hep, Coloruilu It, 1H75, 



'£n) (iiionnKnipli). 

 riiiidoittoma ((leomy») hinpMum, AuD. & Pach., Q. N. A. Hi, 1R54, .KXi. 

 Oeomiif hiieroilut, rKTKim,* Moiialab. Akal. Wiw. Il«rlin, IHn4, 177 (Cmtn KIcn). 

 Gomiya " hinului", Col'Eh, Proc. Pbi1». Acad. 1H75, 131 (by slip of imjii for hitpidiu). 



Diagnosis. — Superior incisors witii a sini^U? strong deep furrow, lying 

 wholly in the inner hull" of the tooth.f Tail and hind feet naked, or iicurly so ; 

 fore feet sparsely hirsute. Fore feet, including claws, decidedly shorter than the 

 hind feet. Pouches moderate, scarcely or not reaching beyond the head. 

 Pelage stiflT, hispid, and almost lustreless. Color uiii(()rm dull chocolate- 

 brown, merely paler, grayer, or smoky-brown below ; all the hairs one-colored 

 from base to tip. Of largest size; nearly or about a foot long; girth some 

 9 inches; tail s'.iort, about 3 inches or rather less from extreme base, its 

 naked part only about 2 inches; sole, 1§-1^; palm, including longest claw, 

 less than this. 9 with only 3 pairs of mammae determined, 2 pairs inguinal, 

 1 pair pectoral. 



Habitat. — Mexico and Central America. (Xalapa, Mexico (Dc Oca) ; 

 Nccostla, Mexico (iSi!/«jicAras<); Costa Rica (.Zeferfon and Canniol); Guatemala 

 Q\iy {Van Patten)) 



The most notable external feature is the nakedness of the tail and feet. 

 The tail, in extreme cases, is absolutely bare ; the hind feet, from the tarso- 

 metatarsal joint outward, are nearly bare, though a few bristly hairs may be 

 observed, especially on the toes. The hands share the same nakedness, but 

 in less degree. Specimens vary in these respects ; in some, delicate bristles 



'Special pnpor: „Ueber nene Arten dor Siingethiergattunf^en Qoomys, Haplodon und Uoaypng." 

 < Loc. at. pp. 177-181. 



t lu the earlier uoticen by LcConto and Baird, the character of the upper incisors wns not fully 

 indicated, owing to dofeet of the specimens. These teeth ore nnisulcate, as in nuxfranua, but the poaition 

 of the groove constitutes n {lerfect specific character. In Meztca*u», a single profunud groove bwectii the 

 tooth ; in Aitjridus, a similar single groove lies on the i»ner half of the tooth. In some specimens, indeed, 

 where the groove is widest, it may encroach slightly upon the median line ; but it asnnlly lies altogether 

 to one side, the outer plane surface of the tooth being alone as wide as the groove plu» the inner plane 

 surface. This character is unique among the species described in this paper ; and it is the basis of O. 

 heterodui, us I find upon examining Prof. Peters's paper, which I was not able to consult in tlu. proparatiuD 

 of my previous articles upon this family, Prof Puteni alludes to the original 5. i;uac/«i{ of Gray, but seems 

 to buvu overlooked Dr. LeCunte's description of G. hitpidus. 



