1884.] GENKRA SICYDIUM AND LENTIPES. 163 



The total length of the body (without the caudal) is about five 

 times the length of the head ; the width of the head is rather 

 greater than the height and two thirds of the length. The height 

 of the body is contained about six and a half times in the length. 

 Scales on the neck and side uearly equal to those on the tail. The 

 diameter of the eye is contained three and a half times in the length 

 of the liead, and equals the interorbital space. The maxilla extends 

 to the vertical from the middle of the eye. The pectoral and 

 caudal fins are rather longer than the iiead ; the caudal is contained 

 about five and a half times in the total length. The third dorsal 

 spine is produced into a short filament higher than the bodv 

 second dorsal higher than the body. Colour blackish violet, dorsal 

 and anal fins dusky violet ; pectoral greenish violet with an orange 

 margin ; caudal yellow, with a black horseshoe-like mark, and with 

 the angles violet. 



Total length 2| inches (£lee/c.). 



Had, Rivers of West Sumatra and Bali. 



13. SicYDiUM GYMNAUCHEN, Blecker. 



Sicydium gymnauchen, Bleeker, Act. Soc. Sc. Indo-Nederl. iii. 

 Celebes, p. 11; Giinth. Cat. Fish. iii. p. 9.i. 



Microskijdium gxjmnuuchen, Bleeker, Arch. Neerl. ix. p. 34 ; 

 Versl. Ak. Amst. (2) ix. p. 284. 



D. 6g^^j. A. jg3j^. L. lat. 40. L. trans, ca. 12. 



(Teeth in the upper jaw tricuspid ?) 



Horizoutal teeth conspicuous. 



The total length of the body (without the caudal) is rather more 

 than four times the length of the head ; the width and height of the 

 head are subequal and half the length. The height of the body is 

 contained about six times in the length. Head and anterior portion 

 of the trunk scaleless; scales on the rest of the body subequal. 

 The diameter of the eye is about a quarter of the length of the head 

 and equals the interorbital space. The length of the pectoral is 

 rather less than the length of the head, which is about equal to the 

 length of the caudal. The anterior dorsal is not so higii as the 

 body ; the second dorsal and anal are subequal, higher than the 

 first dorsal, their anterior rays being higher than the posterior. 

 Colour green above, yellowish beneath, with eight blackish cross 

 bands, broader than the intervening spaces ; the last four or five are 

 lighter than the rest and descend obliquely forwards ; fins rose- 

 coloured, anal dotted with black. (The bands are sometimes in- 

 distinct or absent.) 



Out of more than 300 specimens the longest measures 14 inches 

 {Bleek). 



Hub. Estuaries of Manado. 



