10. STCTDITJM. 95 



a brown spot below the eye ; doi-sal and anal fins orange-coloured ; 

 the second dorsal sometimes with bi-ownish spots ; the anal with a 

 broad brown margin ; caudal olive, with the superior and inferior 

 edges yellow ; pectoral yellow-edged. 



llivers of the East Indian Archipelago. 



Found in fresh waters 3000 feet above the level of the sea. 



10. Sicydium microcephalum- 



Bleeker, Java, ii. p. 437. 



D.6|l. A. A L.lat.60. 



The length of the head is contained six times and two-thirds or 

 six times and three-quarters in the total length. The scales on the 

 neck and thoracic region are much smaller than the others. The 

 first dorsal considerably higher than the body. Olive, spotted with 

 yellow ; dorsal, caudal, and pectoral violet, dotted with darker ; 

 caudal and pectoral with yellow, anal with brown margin. {BL) 



Rivers of Banten (Java). 



11. Sicydium gynmauchen, 



Bleeher, Act. Soc. Sc. Lulo-Kccloi. iii., Celebes, x. p. 11. 

 D. 5 ||. A. ~. L. lat. 40. 



Head and anterior part of the trunk scaleless. The first dorsal 

 lower than the body ; caudal emarginate. Green, ^vith eight black 

 cross-bands ; anal with blackish dots at the base. [The bands are 

 sometimes indistinct or absent.] {Bl.) 



Estuaries of Manado. 



The following species differ in the structure of the dentition : — 



12. Sicydium zosterophorum. 

 Bleeker, Bali, p. 296. 



D. 6 1|. A. |. L. lat. 32. 



Labial teeth none ; a series of five or six unequal, Avidely-set, 

 conical teeth in both jaws on each side. The diameter of the eye 

 is contained three and a half times in the length of the head, and 

 equals the -width of the interorbital space. The height of the body 

 is one-eighth of the total length. Head and neck scaleless. The 

 anterior dorsal is somewhat lower than the body ; caudal obtusely 

 rounded. Head violet, body greenish rose-coloured, encircled by 

 four brown rings : the first is the broadest, extending from the first 

 dorsal spine to the origin of the soft dorsal fin ; the second and third 

 are narrow, between the soft doi-sal and the anal ; the fourth behind 

 the anal ; each scale between the rings with a brown crescent- 

 shaped spot; caudal yellow anteriorly, black posteriorly. (BL) 



llivers of Boleling (North Bali). 



