| OCR Text |
Show 158 MR. w. R. o. GRANT ON T H E [Mar. 4, 3. SICYDIUM BREVIFILE, sp. n. (Plate XII. fig. 1.) D. 6~0. 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 the maxillary suture ; upper lip with a 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 behind 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 becomes 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 75°; horizontal 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 filaments ; 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 transverse 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 |
