50 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



jj. Abdomen narrowly whitish in midventral part ; flank 

 color extensive. 



Ballus longirostris rhizophorae (p. 79) 

 hh. Sides of neck, lower throat, and breast with a grayish wash, 

 i. Dark medial portions of felathers of upperparts very 

 dark — dark fuscous to fuscous-black. 

 j. Margins of dorsal feathers pale olive-gray. 



Rallus longirostris belizensis (p. 72) 

 }j. Margins of dorsal feathers olive or brownish. 

 k. Flanks dark hair brown. 



Rallus longirostris saturatus (p. 60) 

 kk. Flanks darker and less grayish — dark sepia. 



I. Lower throat and breast paler — light pinkish cinna- 



mon heavily washed with grayish. 



Rallus longirostris vafer, dark phase (p. 67) 



II. Lower throat and breast darker — light ochraceous- 



salmon heavily washed with grayish. 



Rallus longirostris scottii (p. 57) 

 ii. Dark medial portions of feathers of upperparts paler — 

 buflfy brown to sepia. 

 /. Medial portions of feathers of upperparts of body very 

 pale — bufify brown to rather light olive-brown. 

 k. Breast pale ochraceous-buff or light pinkish cinnamon 

 Rallus longirostris vafer, pale phase (p. 67) 

 kk. Breast grayish or only lightly washed with ochraceous- 

 buff. 



I. Flanks dark, dark hair brown. 

 ni. Bill shorter, 53 mm. 



Rallus longirostris pallidus (p. 71) 

 mm. Bill longer, over 53 mm. 



Rallus longirostris waynei, light phase (p. 55) 



II. Flanks paler, dusky drab. 



Rallus longirostris crepitans (p. 51) 

 ;'/• Medial portions of feathers of upperparts of body 

 darker — dark olive-brown to sepia. 

 k. Sides of neck decidedly more brownish than grayish. 



I. Larger ; wings, $ , averaging 155 mm., female 138 mm. 



Rallus longirostris vafer, intermediate phase (p. 67) 



II. Smaller ; wing, $ , averaging 145 mm., female 137 mm. 



Rallus longirostris limnetis (p. 68) 

 kk. Sides of neck decidedly more grayish than brownish. 

 I. Sides of head below and behind eye paler — light 

 neutral gray. 

 m. Gray margins of feathers of upperparts very dis- 

 tinct from dark medial areas. 



Rallus longirostris insularum (p. 59) 



mm. Grayish margins of featliers of upperpart washed 



with brownish and not very distinct from dark 



medial areas. 



??. Color of lower throat and breast more grayish 



than buff. 

 Rallus longirostris leucophaeus, dark phase (p. 66) 



