210 AN OVERLOOKED HERON OF THE JAVAN ORNIS. 
NOTE XXIII. . 
AN OVERLOOKED HERON OF THE JAVAN ORNIS 
BY 
Dr. E. D. VAN OORT. 
Meyer and Wiglesworth state in the » Birds of Celebes”, 
Vol. II, 1898, p. 857, that Zzobrychus eurhythma has been 
observed in Java, a specimen from that island received from 
von Schierbrand being in the Dresden Museum. It seems 
that this statement is overlooked by all authors who have 
written in recent time about the ornis of Java: Vorderman, 
Finsch, Koningsberger and Bartels. In the »Hand-list of the 
genera and species of birds”, Vol. 1, 1899, Sharpe does not 
mention Java in the distribution of this species. Dubois 
however, in the second volume of his »Synopsis Avium”, 
1904, gives Java as a locality where this heron is observed. 
The Leyden Museum also possesses a specimen from Java. 
This is a young example, collected in 1827 near Buiten- 
zorg, W. Java, by S. Müller, and catalogued in 1863 by 
Schlegel under the name of Ardea cinnamomea n° 13. 
Schlegel confused our species, which was described not 
before 1873 by Swinhoe, with Jzobrychus cinnamomea 
(Gmelin), as is shown by this example and by n° 14 of his 
Catalogue, a young bird from Borneo, collected by Schwaner, 
which too belongs to eurhythma. Also Finsch has confused 
this species with cinnamomea, for the bird from Borneo of 
the Nieuwenhuis-collection, mentioned by him on page 149 
of Vol. XXVI, 1905—’06, of the »Notes from the Leyden 
Museum”, under the name of Ardetta cinnamomea, is a 
true Ixobrychus eurhythma (Swinhoe). I wonder that this 
could be done, as the coloration of-the remiges in the two 
species is quite different, in cinnamomea cinnamon-rufous 
and in eurhythma ashy brown or blackish brown. 
Of Ixobrychus eurhythma (Swinhoe) — Ardetta eurhythma, 
Ibis, 1878, p. 73, pl. IT — the Leyden Museum possesses: 
N° 1, juv., Java, Buitenzorg, 1827. S. Müller coll. 
N° 2, © juv., Borneo, May 1841. Schwaner coll. 
N° 3; jur, Celebes. Von Rosenberg coll. 
N°: 4—5, @ and ~ ad., Siao, 30 October. and- 2 November 1865. Hoedt coll. 
N°: 6—7, ¢ and @ ad, China, Chefoo, May 1873. Swinhoe coll. 
N° 8, ¥ juv., Nippon, Japan. Linnaea, Berlin, 1890. 
N° 9, © juv., Borneo, Upper Mahakkam, 1 May 1896. Coll. Nieuwenhuis. 
Leyden Museum, September 1910. 
Notes from the Leyden Museum, Vol. X XXII. 
