174 TYLOMYS. OTOTYLOMYS. SIGMODON. 



Watson's Rat. 



Type locality. Bogava, Chiriqui, Panama. Altitude, 8,000 feet. 

 Geogr. Distr. Panama, Central America. 



387. Tylomys panamensis (Gray). 



Neomys panamensis Gray, Ann. Mag. Nat. Hist., 4th Ser., xii, 



1873, p. 417- 

 Tylomys panamensis Elliot, Mamm. Middle Amer. & W. Indies, 



F. C. M. Pub., IV, Pt. I, 1904, p. 219. Zool. Ser. 

 Panama Rat. 



Type locality. Panama. 



Geogr. Distr. Panama, Central America. 



Genus 64. Ototyhmiys. 



Ototylomys Merr., Proc. Wash.. Acad. Scien., in, 1901, p. 561. 

 Type Ototylomys phyllotis Merriam. 



388. Ototylomys phyllotis Merriam. 



Ototylomys phyllotis Merr., Proc. Wash. Acad. Scien., iii, 1901, 

 p. 562. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., IV, Pt. I, 1904, p. 221, fig. 37. Zool. Ser. 

 TuNKAS Rat. 



Type locality. Tunkas, Yucatan, Mexico. 

 Geogr. Distr. Yucatan. 



a. Ofotj/Jmnys phyllotis phwus Merriam. 



Ototylomys phyllotis phcens Merr., Proc. Wash. Acad. Scien., iii, 

 1901, p. 563. Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 221. Zool. Ser. 

 Apazote Rat. 



Type locality. Apazote, near Yohaltun, State of Campeche, 



Mexico. 

 Geogr. Distr. State of Campeche, Mexico. 



Genus 65. Si^iiiodoii . Cotton TJats. 



Sigmodan Say and Ord, Journ. Acad. Nat. Scien. Phil., iv, 1825, 

 p. 352, pi. XXII, figs. 5-8. Type Sigmodon hispidus Say and 

 Ord. 



389. Sigmodon hispidus Say and Ord. 



Sigmodon hispidus Say and Ord, Journ. Acad. Nat. Scien. Phil., 

 1825, p. 354. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 144, fig. 31. Zool. Ser. 



