XXXVl 



The second subgenus [Nystalus] contains the five remaining species, which may be thus 

 distinguished : — 



A. Pectore rufescente, puro, 



ventre albo, nigro maculato 16. B. maculatus, p. 99. 



ventre albo^ nigro striolato ' 17. B. striatipectus, p. 101. 



B. Pectore albo, puro 18. B. chacuru, p. 103. 



C. Pectore rufescente, variegato, 



ventre nigro striolato 19. 5. striolatus, p. 107. 



ventre nigro transradiato 20. -B. radiatus, p. 109. 



Type. 



Genus II. MALACOPTILA. 

 M«/acop^ifo, Gray, List of Gen. p. 13 (1841) M.fusca. 



Fig. 8. 





Malacoptila fusca. 



a. Bill, from side. h. Bill, from above, c. Wing-end, from within, d. Tail-end, from below. 



e. Left foot, from within. 



Char. Gen. Rostrum paulo incurvum, capitis longitudine, debilius et magis compressum quam in 

 Buccone, apice magis incurvato sed vix uncinato ; nares basales, vibrissis frontalibus obtectse; aliter sicut 

 in genere prsecedentej sed cauda magis rotundata. 



Seven species, according to my judgment, may be recognized in this genus, as set out in the 

 subjoined diagnostic table : — 



