DASYPROCTA. 405 



a." Under parts like back; pale line on PAGE 



belly; size large D. punctata 405 



b." Under parts tinged with olivaceous; 



size small D. ruatanica 405 



b/ Above mixed black and white D. mexicana 405 



c.' Above yellowish clay color D. callida 406 



b. Long hairs on rump, annulated to their base. 



a.' Long rump hairs black and yellow ringed. .D. isthmica 407 



b.' Long rump hairs, brown and orange D. coibce 407 



B. With nuchal crest D. cristata 407 



420. punctata (Dasyprocta) , Gray, Ann. Mag. Nat. Hist., ist Ser., 



x, 1842, p. 264. 

 SPOTTED AGOUTI. Cotusa in Guatemala. 



Type locality. "South America." 



Geogr. Distr. Guatemala, Costa Rica, Central America. 



Genl. Char. Color variable, from a bright chestnut to a pale 

 yellow. 



Color. Uniform rufous, or with yellow and black rings on hairs 

 on all the body except a pale line on middle of abdomen; hairs of 

 rump only slightly elongate. 



Measurements. Total length about 550; hind foot, 100. 



421. ruatanica (Dasyprocta), Thomas, Ann. Mag. Nat. Hist., 7th 



Ser., vin, 1901, p. 272, 

 RUATAN ISLAND AGOUTI. 



Type locality. Island of Ruatan, Bay of Honduras. 



Geogr. Distr. Type locality only. 



Genl. Char. Similar to D. punctata, but smaller. 



Color. Above mixed black and yellow, like D. punctata; under 

 part like back, tinged with olivaceous; chin white; yellow patch on 

 belly; hands and feet grizzled or deep brown; ears blackish. 



Measurements. Length head and body, 435; hind foot, 101. 

 Skull: basal length, 70.5; zygomatic breadth, 18.7; interorbital 

 breadth, 27.5. 



422. mexicana (Dasyprocta) , Sauss., Rev. Mag. Zool., 2me Se'r., xn, 



1860, p. 53. 

 MEXICAN AGOUTI. 



Type locality. "Hot zone of Mexico." State of Vera Cruz? 



Genl. Char. Long hairs black throughout their length; size 

 small. 



Color. Hairs on body above, and sides ringed with black and 

 pure white; rump black; throat and belly white. 



