iUacrogeomys, Zygogeomys, Tliomomys. 
576 
628. Macrogeomys, Men-iam, 1895. 
Qeoniys, p., Peters, 1864. 
3470. heterodus, Peters, M.-B. Akacl. Beiiin, 
1864, p. 177; Merriam, N.-Am. Fauna, 
N" 8, p. 186, pl. 11 et 14. 
3471. dolichocephalus, Merriam, N.-Am. Fauna, 
N» 8, p. 189, pl. 6, 10, 13. 
3472. costaricensis, MeiTiam,North- Amer. Fauna, 
N° 8, 1896, p. 192, pl.ll, 13, 14. 
3473. Cherriei, Allen, Bull. Amer. Mus. New-York, 
V, 1893, p. 337 ; Merriam, N.-Am. Fauna, 
N^S, 1895, p. 194, pl. 15, fig. 1; Allen, 
Bull. Am. Mus., 1896, p. 45, pl. I (cran.). 
Costa-Kica, M® Irazu. 
Costa-Rica, San Jose. 
Costa-Rica, Pacuare. 
Costa-Rica, Santa 
Clara, Jimenez. 
629. Zygogeomys, Merriam, 1895. 
3474. trichopus, Merriam, North-Amor. Fauna, Mexico, Sierra Madre 
N« 8, 1895, p. 195, 196, pl. 6, 13, 14, 16, de Michoacan, a Patz- 
17 iR 19 cuaro ad NaFuatzin 
’ ’ ■ (2300—3200 m.). 
630. Thomomys, Wied, 1839. 
1893. — J. A. Allen, Descriptions of four Neiv Species of Thomomys, with 
remarks on other species of the Genus (Rcvision), — Bull. Amer. Mus. 
Nat. Hist. New-Yoi’k, V, 1893, p. 47 — 67. 
Qeomys, p., Richards., 1828; IHplostoma, p., Richards; Oryctoniys, 
Eyd. et Gerv., 1836. 
3475. bulbivorus, Richards., Fauna Bor .-Amer., 
1829, I, p. 206, pl. 18B; Braudt, Beit. 
Saug'., 1855, p.l88, pl. 5; Coues, Rod., 
p. 626 (part.); Allen, Bull. Amer. Mus. 
N.-York, 1893, p. 66, pl. I, fig. 14 (cran.); 
Miller, Proc.Biol. Soc.Wash., 1893, p. 113; 
Merriam, N.-Am. Fauna, N“ 8, 1895, 
p. 198, fig. 68—71. 
3476. Bottai, Eyd. et Gerv., Mag. ZooL, 1836, 
p. 23, pl. XXI. fig. 4 (dent.); Voy. Favorite, 
pl. "VY!!; Allen, Bull. Am. Mus., 1893, 
p. 66, pl. I, fig. 8, 9 (sub nom.: Bottae)- 
1896, p. 263. 
Jndbivorus, Baird (nec Richards.), pl. 50 
et 52. 
America Sept.- 
Occidentali: Oregon, 
Multnomah Co., 
Washingion Co., 
Lower Columbia 
River. 
California centrali et 
merid., M® Santa 
Cruz, Portola. 
