7O Bulletin American Museum of Natural History. [Vol. XX, 



22. Zygodontomys (?), sp. One specimen, skin without 

 skull, Boqueron, Oct. 28. Without the skull it is impossible 

 to determine whether this specimen should be referred to 

 Sigmodon or to Zygodontomys. In either case the species is 

 apparently undescribed. 



23. Reithrodontomys costaricensis Allen. Six specimens, 

 Boquete, Aug. 20-29. 



24. Macrogeomys cavator Bangs. Two specimens (topo- 

 types), adult male and female, Boquete, altitude 5000 feet. 



25. Heteromys repens Bangs. Two specimens, adult 

 female, Boqueron, Oct. 31; young in slaty pelage, Boquete, 

 without date. 



26. Proechimys centralis chiriquinus Thomas. Twelve 

 specimens, selected from a large series, Boqueron, Oct. 21- 

 Dec. i. 



27. Coendou laenatus Thomas. Four specimens, Boqueron, 

 Oct. 25, Nov. 27, and Dec. 4. 



28. Dasyprocta coibae Thomas. Four specimens (topo- 

 types), skins and skulls, and 2 additional skulls, Coiba Island, 

 May 14-19 and June 19. 



Mr. Batty has kindly given me his measurements, taken in 

 the flesh, of 9 specimens, 3 males and 6 females; some of the 

 latter are obviously not fully grown. The males measure 

 respectively: Total length, 495, 555, 465; head and body, 

 465, 520, 435; tail, 30, 35, 30; hind foot, 120, 120, 115;. ear, 

 40, 40, 35. The largest 3 females: Total length, 505, 510, 530 x ; 

 head and body, 465, 470, 500; tail, 40, 40, 30; hind foot, no, 

 117, 115; ear,4o,4o,4o. 



29. Lepus (Tapeti) gabbi (Allen). Six specimens, includ- 

 ing 4 adults and 2 very young examples, Boqueron, October 

 and December, except one, taken in April, and without definite 

 locality. 



30. Felis bangs! costaricensis Merriam. One skin, without 



1 The last of these three females is the type of the species. Collector's No. 129. Mr. 

 Thomas's measurements were taken from the skin and naturally differ from the above. 



