no. 3034 ARDOPS — JONES AND SCHWARTZ 3 



left side. Additionally, we note a considerable range of variation in 

 size in the third molars of both upper and lower jaws. In males of 

 A. n. nichollsi, for example, the M3 varies from .55 mm wide by .40 

 mm long up to .70 by .50 mm; in females of that subspecies the tooth 

 varies from .70 by .45 mm up to .90 by .50 mm. Otherwise, only 

 minor variations in tooth structure were observed among the speci- 

 mens studied. 



It has not been possible for us to assess accurately infraspecific 

 variation in color because, save for one skin from Guadeloupe (a 

 female that may have been initially preserved in spirits), the only 



52- 



50 



48H 



a: 

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 rr 

 £46 



44- 



42-1 



20.0 .5 21.0 .5 22.0 .5 23.0 .5 24.0 

 GREATEST LENGTH OF SKULL 



Figure 1. — Scatter diagram: length of forearm plotted against greatest length of skull 

 (in mm) for specimens of five subspecies of Ardops nichollsi (solid= males, open= 

 females). 



museum study skins available are from Dominica. Nevertheless, 

 comparison of specimens stored in alcohol of all named subspecies 

 with the skins from Dominica suggests that geographic variation 

 is slight. The dorsal pelage varies in overall color from near Prout's 

 Brown (capitalized color terms from Ridgway, 1912) or Bister through 

 various paler shades to near Buffy Brown (in one noticeably pale 

 individual), and it is dense and relatively long (measuring 9-11 mm 

 middorsally) in all specimens studied ; usually there is a faint grayish- 

 brown patch over the shoulders. The individual dorsal hairs are 

 dark brownish basally, pale buffy in the midregion, and mostly tipped 

 with brown, imparting a distinctly tricolored appearance to the 

 pelage when it is parted. A white spot is present at the junction of 



