560. 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 45. 



Gnathopogon elongata (Schlegel), Acheilognathus tabira Jordan and 

 Thompson, MSS., Acheilognathus lanceolatum (Schlegel), and Achei- 

 lognathus cyonostigma (Jordan and Fowler) . I have since found this 

 parasite on A. limbatum Jordan and Snyder from the same locality. 



ICHTHYOXENUS JELLINGHAUSII Herklots. 



Ichthyoxenus jellinghausii Herklots, Archives 

 Neerlandaises, vol. 5, 1870, pp. 128-137, 

 pi. 5, figs. 10-18. — Schigedte and Mein- 

 ert, Naturhistorisk Tidsskrift (3), vol. 14, 

 1884, pp. 298-303, pi. 11, figs. 5-6.— Max 

 Weber, Zool. Ergebnisse, vol. 2, 1892, pp. 

 557-560, pi. 30, fig. 1.— Willink, Natuurk. 

 Tijdschr. Nederl. -Indie, vol. 64, 1905, pp. 

 156-161. — Ouwens, Natuurk. Tijdschr. 

 Nederl. Indie, vol. 67, 1908, pp. 29-35. 



Locality. — A male and a female, col- 

 lected by Dr. Owen Bryant and Mr. 

 William Palmer in 

 Java, are in the 

 United States Na- 

 tional Museum. 

 The host is not 

 known. 



This species has been recorded from Ban- 

 dong and Batavia. The specimen in the 

 United States National Museum is from Buit- 

 enzorg, and if the figures of Herklots and 

 Schioedte and Meinert are correct it differs 

 from the type in the following points : The first 

 segment of the thorax in the 

 female has the anterior mar- 

 gin deeply excavate in the 

 middle, the excavation being 

 rectangular; the seventh 



pair of legs have the carpus and merus very much 

 inflated, with the inner margin produced in a 

 rounded expansion; the merus is also much elon- 

 gated. 



For the purpose of comparison with the new 

 species from Japan, I have figured the specimen in 

 the United States National Museum, which I have identified as 

 Ichthyoxenus jellinghausii Herklots. Since I have not seen the type- 

 species and find the Buitenzorg specimens so close to the description 

 and figures of this form, I have thought it best to do this. 



Fig. 1.— Ichthyoxenus jellinghaush, 

 Buitenzorg. Female. X 3|. 



Fig. 2.— Ichthyoxenus jel- 

 linghausii, Buitenzorg. 

 Male, x 6f . 



Fig. 3. —Ichthyoxenus 

 jellinghausii, Bui- 

 tenzorg. Seventh 

 leg of female. x 7j. 



