164 AEDEID^. 



Cymbops cochlearia, Waffl. Syst. Av. p. 144 (1827). 

 Nycticorax cancrophagus, ReicJien. J.f. O. 1877, p. 236 (Brazil) 

 Coclilearius cochlearius, Stejn. Stajid. I\ut. Hist. iv. p. 178 (1885). 

 Cochleaiius cancrophagus, Heine ^' Reichen. I\omencl. Mus. Hein. 

 p. 310 (1890). 



Adult. General colour above delicate lavender-grey, the upper 

 mantle with a broad band of black, tinged with maroon, extending 

 a little way down the sides of the mantle ; the wing-coverts grey 

 like the back, but inclining to hoary grey on the greater series ; 

 quills hoary grey or whitish, dusted with slaty -grey towards their 

 ends ; lower back, rump, upper tail-coverts, and tail hoary grey ; 

 crown of head and nuchal crest blue-black ; forehead white to above 

 the eye ; lores bare ; sides of face, throat, and chest white, with a 

 delicate shade of lavender-grey on the sides of the neck and sides 

 of chest ; breast, abdomen, and under tail-coverts dark cinnamon- 

 rufous ; sides of body and flanks black, as also the axillaries and 

 inner lower wing-coverts, the outer ones white like the edge of 

 the wing ; thighs white, washed with bluish grey : " iris dark, with 

 a small greyish-brown ring on the outer side ; throat-patch duU 

 yellow ; bare space in front of the eye dark brown ; eyelids greenish 

 yellow ; upper mandible dark brown, blackish on the culmen, and 

 somewhat yellowish on the nasal grooves ; edges of upper mandible 

 and entire lower mandible clear yellow, somewhat duller brown 

 near the sides of the base ; feet dull or dirty yelloAv, brownish on 

 the soles, somewhat greenish on the sides of the tarsus ; claws 

 yellowish flesh-colour" {Neuivied). Total length 16 inches, culmen 

 2-65, wing 10-8, tail 4-4, tarsus 2-8. 



Adidt female. Similar to the male in plumage. Total length 

 19 inches, culmen 2-'J, wing 11-6, tail 5*4, tarsus 3. 



Younrj. Diff'erent from the adults, and cinnamon-rufous above, 

 darker on the back, and somewhat lighter on the wing-coverts ; a 

 slight shade of grey on the greater coverts and inner secondaries ; 

 lower back, rump, and upper tail-coverts dusky grey washed with 

 rufous ; tail-feathers grey, narrowly fringed and washed with 

 rufous : crown of head black, but no nuchal crest ; sides of face 

 and under surface of body whitish, washed with grey on the face 

 and with rufous on the sides of the neck and chest ; the black 

 patches on the flanks of the adult replaced by striped feathers, ashy, 

 washed Avith rufous and having longitudinal white centres ; axil- 

 laries similarly striped. 



Another young bird from Sarayacu has the primary-coverts and 

 quills tipped with white, as in the rufous Xight Herons. 



Hah. South America from Southern Brazil, throughout Amazonia 

 to Guiana, Colombia, and Ecuador. 



a. Ad. sk. Brazil. Eiocour Coll. 



h. (S ad. ; c. Juv. Kio de Janeiro, Alex. Fry, Esq. [P.], 

 sk. 



d. $ ad. sk. Eng-eiiho do Pari, Brazil, Jan. Salvin-Godman Coll. 



22 {J. Natter er). 



e. Ad. sk. Cayenne. 11. 0. Rothery, Esq. 



[P.]. 



