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Habitat: 1 ) Sumatra (Siboga, rivers Kampar Kiri !, Rokan!, 

 Kwantan) ; Singapore ! ; Riouw ! ; Island Singkep ! ; Banka ; Biliton; 

 Borneo (rivers Kahajan, Sambas, Baram, Mangar, rivers near 

 Balik papan ! and Bontang!); Bunguran Island [British Mu- 

 seum], - - Malacca, Siam. 



GUNTHER says: (Cat. Brit. Mus. VII. p. 194) "One might 

 be tempted to regard R. einthovenii Blkr., as distinct, if the 

 figure given of it be alone consulted. However, it appears from 

 his description that normally the black band is not so much 

 curved as represented; and the specimen sent to the British 

 Museum is absolutely identical with R. daniconius" . This must 

 be an error. We have at our disposition a good specimen 

 which we received through the kindness of Dr. ANNANDALE 

 from Calcutta under the name of R. daniconius and besides some 

 specimens from Ceylon, kindly sent to us by Dr. G. DUNCKER 

 from the Museum in Hamburg. These specimens agree with 

 GfJNTHERS description, they differ from einthoveni by having 

 9 in stead of 7 rows of scales between the lateral lines, 

 counted over the back, by having the pectoral equal to head 

 without snout, whereas the pectoral of einthoveni is longer 

 than the head. There are 14 15 scales between the head and 

 the dorsal, in einthoveni 12 13. R. daniconius has been menti- 

 oned by different authors from the Archipelago, but as GUNTHER 

 has united einthoveni with it, it is not sure if those authors 

 have had einthoveni or a species which could be identified 

 with R. daniconius from India. Only VAILLANT (Nouv. Arch. 

 Mus. (3) V. 1893 p. 86) gives a description of two sets of 

 specimens, which he believed to be R. daniconius. One set, 

 containing specimens measuring 33 64 mm. belong probably 

 to R. trilineata. About the other set, containing specimens of 

 163 mm., we are not sure. 



i) The occurrence of this species in lake Galela in Halmahera (STEINDACHNER 

 1. c.) is without question erroneous and a mistake in KUKENTHAL'S collection or 

 in using it. KUKENTHAL himself says (Forschungsreise in den Molukken and 

 Borneo 1896, p. 152), that he found only one species of fish in this lake, which 

 is, according to STEINDACHNER, Eleotris macrolepidota Bloch. On page 126 he 

 pretends to have found "ein paar Cyprinoiden", in the rivers near Oba and Patani, 

 Halmahera. This must be also erroneous as STEINDACHNER found in the collec- 

 tion from this rivers, besides some true marine or brackish water species, only 

 Kuhlia marginata (C. V.), which may be taken for a Cyprinoid. 



