1G2 MR. W. R. O. GRANT ON THE [Mar. 4, 



scales on the neck and belly are as large as the rest ; those on the 

 occiput very small. The diameter of the eye is contained four and a 

 halt times in the length of the head, one and a half in the inter- 

 orbital space, and one and a half in the snout. The first dorsal is 

 higher than the body ; third and fourth spines are produced into 

 short filaments. Colour brown, sometimes clouded with darker ; fins 

 brownish, except the ventral, which is whitish ; second dorsal with 

 four or five series of dark dots on the rays ; anal with a black and 

 white margin. Caudal with a dark horseshoe-like marginal band 

 met by a second passing along its middle rays. 



Hab. Mauritius and Bourbon. 



One adult specimen. 



11. SiCYDIUM ELEGANS, Steiud. 



Sicydium elegans, Steindachner, SB. Ak. Wien, Ixxx. p. 152. 

 B. 6^\- A. i. L. lat. 32-33. 



(Teeth in the upper jaw tricuspid ?) 



The total length of the body is five times the length of the head. 

 The width of the head is greater than the height and is two thirds 

 of the length. The height of the body is about one sixth of the 

 length. Scales on the neck and belly are rather smaller than the 

 rest. The diameter of the eye equals the length of the snout and 

 is nearly equal to the interorbital space ; it is contained about 3g 

 times in the length of the head. The first and second dorsals are 

 higher than the body. The length of the pectoral is greater 

 than that of the head and equal to the caudal. Colour light 

 brownish-yellow ; whitish on the belly, a dark brown band along 

 the upper margin of the body, a second along the margin of the 

 belly, and a third along the margin of the upper hp which loses itself 

 between the eye and the base of the pectoral in small spots. The 

 upper band extends along the side of the head to the snout in a 

 horizontal line : above this, there is sometimes a third longitudinal 

 band, which is joined to the corresponding one on the other side 

 by a silver band which loses itself on the neck. All the fins with 

 the exception of the ventral are transparent, spotted with violet. 

 The spots on the caudal are larger than those on the other fins, and 

 placed in oblique series. 



Longest specimen 33 millim. long (Steind.). 



Hab. Society Islands. 



12. SiCYDIUM XANTHURUM, Bleeker. 



Sicydium xanthurum, Bleeker, Sumatra, ii. p. 271 ; Giinth. Cat. 

 Fish. iii. p. 93. 



Sici/opterus (Sicydiops) xanthurus, Bleeker, Arch. Neerl. Sc. Nat. 

 ix. p. 2G ; et Versl. Ak. Amst. (2) ix. p. 283. 



D. Gjj^g. A. 3^. L. lat. .f)0. L. trans. 12. 



(Teeth in the upper jaw tricuspid ?) 



A row of papillae on the gum beneath the upper lip ; horizontal 

 teeth conspicuous. 



