202 GATTUNG ORTHOLOPHUS. 



Du Chaillu) ib. 274 (Muni). — Berenicornis albocristalus Cass, 

 Proc. Acad. Nat. Scieoc. Philad. 1859, p. 139 (Gabon: Gamma, 

 Ogobai: Da Ghaillu). — Heine jun. J. f. Orn. 1861, p. 188(nach 

 Gassin). — Sharpe, Proc. Z. S. Lond. 1871, p. 604, Fig. la: bill 

 (c/) Gameroons. — Sharpe & Bouv. Buil. Soc. Zool. France, 1876, 

 p. 310 (Congo: Lucan & Petit). — Buceros albocristatus Reichw. 

 (nee Gas8.) J. f. Orn. 1875, p. 12 (Camerun: Reichw.). — id. ib. 

 1877, p. 18 (Loango: Falkenstein). — Berenicornis albocristatus 

 Oust, (nee Gass.), Nouv. Arch. Mus. 1879, p. 129 (Loango). — 

 Shelley, Ibis 1888, p. 69 (pt. excl. Liberia). — Buceros albocris- 

 tatus Bocage (nee Gass.), Orn. Angola, 1881, p. 540 (Congo). — 

 Ortholopkus albocristatus Grant (nee Gass.), Gat. B. Br. M. XVII, 

 1892, p. 425 (Congo : Spencer Shield ; Gameroons : Crossley ; Gaboon : 

 Ansell). — Reichw. J. f. Orn. 1896, p. 54 (Kamerun). — Sharpe, 

 Handl. of Birds, II, 1890, p. 69 (Gameroons to the Congo). — 

 Reichw. Vög. Afr. II (i), 1903, p. 267 (syn. emend.). 



»The present collection contains the second specimen 

 that I ever have seen of this remarkable species. This spe- 

 cimen is apparently not in so mature plumage as that 

 originally described by me, and has the feathers of the 

 cheeks behind and below the eye mixed with white and 

 black, instead of pure white as in the former specimen. The 

 greater wing-coverts and all the quills are tipped with white", 

 schreibt Cassin (1857) von dem 1856 durch Du Chaillu 

 vom Munifluss (Gabon) erhaltenem Exemplare. Und zwei 

 Jahre spater über weitere durch denselben Reisenden (1858) 

 von Cammafluss (Gabon) eingesandte Exemplare: 



» Numerous specimens from the Camma and formerly 

 from the Muni and Moonda. The description and figures 

 as above *) is of the adult. In the jounger birds the cheeks 

 are frequently black and the quills and wing-coverts widely 

 tipped with white". 



In Uebereinstimmung mit Cassin wird auch in den von 

 Shelley, Grant und Reichenow gegebenen Beschreibuugen 

 die weisse Fleckung auf Schwingen und Deckfedern her- 

 vorgehoben, Unterschiede die also keineswegs, wie Cassin 



, I) , Journ. Acad. Philad. 1848, Pi. XV", also Type von B. albocristatus von 

 Liberia. 



]S'otes from the Leyden IMuseum, Vol. XXIII. 



