] 58 MR. W. R. O. GRANT ON THE [Mar. 4, 



3. Sicydium brevifile, sp. n. (Plate XII. fig. 1.) 



D. G^ . A. £ . L. lat. 64. 



Teeth in the upper jaw long, slender, and bent inwards over the 

 gum at right angles. No papillae on the gum beneath the upper lip, 

 but a small median papilla above tbe maxillary suture ; upper lip with 



7RO 



slight median notch ; maxillae contain an angle of about 75' 

 horizontal teeth conspicuous. 



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

 fifth times the length of the head ; the width of the head is greater 

 than the height and two thirds of the length ; the height of the body, 

 which is greater than the width of the head, is contained five and a 

 half times in the length. Scales on the body and tail are subequal, 

 larger than those on the neck and belly. The maxilla extends be- 

 hind the vertical from the posterior margin of the eye, the diameter 

 of which is contained six and a half times in the length of the head 

 and twice in the interorbital space. The length of the pectoral is less 

 than that of the head. The second, third, fourth, and fifth dorsal 

 spines are produced into short slender filaments ; the fourth, which is 

 the longest, is rather higher than the body ; the second dorsal is not 

 so high as the body. Colour, body and fins yellowish brown ; the 

 second dorsal marbled with darker ; anal with a brown and white 

 margin. 



Total length 4^- inches. 



Hab. Cameroons. 



One adult specimen. 



4. Sicydium gymnogaster, sp. n. (Plate XI. fig. 2 et XII. 

 fig. 6.) 



D. 6^. A. i L. lat. 60-64. 



Teeth in the upper jaw tricuspid"; the middle cusp, which is 

 situated at the anterior end of the tooth, is very short and soon be- 

 comes worn away. 



A double or treble row of small papillae on the gum beneath the 

 upper lip, without a larger median papilla ; upper lip with a very 

 slight median notch ; maxillae contain an angle of about 7o° ; hori- 

 zontal teeth more or less inconspicuous. 



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

 half to five times the length of the head ; the height and width of 

 the head are subequal and two thirds of the length. The height of 

 the body is contained from five and a half to six times in the length. 

 Scales strongly ctenoid ; neck and belly naked. The diameter of 

 the eye is one sixth of the length of the head and half the interorbital 

 space. The length of the pectoral is greater than that of the head. 

 The second, third, and fourth dorsal spines are produced into fila- 

 ments ; the third, which is the longest, is twice the height of the 

 body ; the second dorsal is higher than the body. Colour violet- 

 brown, yellowish in young specimens, shaded with indistinct trans- 

 verse bands of darker ; an irregular brown spot on the axis of the 

 pectoral, and a broad dark band from the base of the pectoral to the 



