ponare 
DASYPROCTA., 405 
a.’ Under parts like back; pale line on PAGE 
Pemmeesime staree 2 Sees a sy ata D. punctata 405 
b.”” Under parts tinged with olivaceous; 
SOLES eT Rn ores See are ...D. ruatanica 405 
b.’ Above mixed black and white........... D. mexicana 405 
E sbeve yellowish clay color..:..........- ean 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. coibe 407 
SUS RSS a en D. cristata 407 
420. punctata (Dasyprocta), Gray, Ann. Mag. Nat. Hist., rst Ser., 
X, 1842, p. 264. 
SpoTteD AcouTi. 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, 1oo. 
421. ruatanica (Dasyprocia), Thomas, Ann. Mag. Nat. Hist., 7th 
Ser., VIII, 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, ror. 
Skull: basal length, 70.5; zygomatic breadth, 18.7; interorbital 
breadth, 27.5. 
422. mexicana (Dasyprocta), Sauss., Rev. Mag. Zoodl., zme Sér., x11, 
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. 
