380 HETEROMYS. 



Color. Above drab brown, mixed with black and pale fulvous; 

 lateral line fulvous; tail all dusky except basal third beneath which 

 is paler. 



Measurements. Total length, 204; tail vertebrae, 95 (broken); 

 hind foot, 29. 



398. orbitalis (Liomys}, Merr., Proc. Biol. Soc. Wash., xv, 1902, 



p. 48. 

 CATEMACO SPINY MOUSE. 



Type locality. Catemaco, State of Vera Cruz, Mexico. 



Genl. Char. Size medium; skull broad, heavy; nasals suddenly 

 expanding on anterior half; zygomata widely and squarely spread; 

 rostrum short, sides parallel; superciliary beads developed, reaching 

 to middle of parietals; hind foot 6-tuberculate. 



Color. Above dark brown, slightly grizzled with fulvous, 

 blackish on middle of back; lateral line indistinct; hands, feet, and 

 under parts white; tail above dusky, beneath whitish, tip all dark. 



Measurements. Total length, 225; tail vertebras, 109; hind 

 foot, 29. 



399. crispus (Liomys}, Merr., Proc. Biol. Soc. Wash., xv, 1902, 



p. 49. 

 CURLY SPINY MOUSE. 



Type locality. Tonala, State of Chiapas, Mexico. 



Genl. Char. Size small; tail shorter than head and body, scantily 

 haired; hind foot 6-tuberculate. 



Color. Above gray, sprinkled with white, darkest on dorsal 

 region, the hairs with tips recurved; hands, feet, and under parts 

 whitish; no lateral line; ears without white edges; tail dusky, paler 

 beneath. 



Measurements. Total length, 210; tail vertebrae, 99 (broken); 

 hind foot, 27.5. 



a. setosus (Liomys}, Merr., Proc. Biol. Soc. Wash., xv, 1902, p. 49. 



HUEHUETAN SPINY MOUSE. 



Type locality. Huehuetan, State of Chiapas, Mexico. 



Genl. Char. Similar to H. crispus, but with coarser pelage; tail 

 longer; skull larger, and with its characters correspondingly inten- 

 sified; nasals more cuneate, truncate posteriorly. 



Color. Like H . crispus, but darker and with fewer recurved hairs. 



Measurements. Total length, 225; tail vertebrae, no; hind 

 foot, 29. 



400. heterothrix (Liomys}, Merr., Proc. Biol. Soc. Wash., xv, 1902, 



P- So- 



