164 mr. w. r. o. grant on the [Mar. 4, 



Sicydium, sp. n.? 



Closely allied to S. gymnauchen, Bleek. 



D. 6^. A. i. L. lat. 54. L. Trans. 15. 



Teeth in the upper jaw tricuspid. 



No papillae on the gum beneath the upper lip, no median papilla, 

 slight median notch in the upper lip ; maxillae contain a narrow 

 angle about 45°, horizontal teeth conspicuous. 



The total length of the body (without the caudal) is four and a 

 half times the length of the head. The width and height of the 

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

 the body is less than one sixth of the length. Scales subequal, 

 rather large. The diameter of the eye is a quarter of the length of 

 the head and is equal to the interorbital space. The length of the 

 pectoral is less than the length of the head, which is equal to the 

 length of the caudal. The first dorsal lias none of its spines 

 produced into filaments, and is equal to the height of the body. 

 Second dorsal not so high as the body. Colour yellowish brown, a 

 dark zigzag band along the upper half of the body. Membrane of 

 the fins transparent ; a dark V^-shaped mark on the root of the 

 caudal, and two transverse bands across the rays. The longest 

 specimen measures \\ inch (32 millims.). 



Hab. Samoa. 



Nine young specimens. 



14. Sicydium albo-t^eniatum, Gthr. 



Sicydium albo-tceniatum, Giinth. Fische der Siidsee, p. 185, pi. ex. 

 fig. D. 



This species is described from a drawing made by Mr. Garrett, 

 who captured two specimens in the streams of the Sandwich Islands. 



The formula of the fins appears to be : — - 



D. 6, 15. A. 18. 



Colours, body olive-green, with a broad white band from the tip 

 of the snout to the root of the caudal, and below it a longitudinal 

 row of large dark and isolated spots; fins greyish, second dorsal, 

 caudal, and anal with a pale blue margin, the latter being also 

 spotted with blue along the base; pectoral with a light edge. 



Bab. Sandwich Islands. 



15. Sicydium micrurum, Bleek. 



Sicydium micrurum, Bleeker, Amboina, v. p. 341; Giinth. Cat. 

 Fish. iii. p. 93. 



Sicyopterus micrurus, Bleeker, Versl. Ak. Amst. (2) ix. p. 280. 



D. 61. A. ~. L. lat. 55-60. L. trans, ca. 15. 



Teeth in the upper jaw tricuspid. 



A row of tuberculous papillae on the gum beneath the upper lip, 



