524 SURGEON F. DAY ON INDIAN FISHES, [Nov. 11, 
Length of the head % of the total length. Height of body 1, 
width of head nearly + of the total length. 
The maxillary cirri extend to the end of the pectoral fin, the ex- 
ternal mandibular pair to the posterior third of the pectoral, the 
inner pair to the base of the pectoral. Head rugose superiorly, oc- 
cipital process keeled, granulated, as long as wide at the base, and ex- 
tending in a concave extremity ; basal bone crescent-shaped. The 
superior longitudinal furrow on the head extends to opposite the 
end of the opercle. 
Fins. Dorsal spine upwards of 7 of the total length, serrated on 
both sides on its upper half, rugose anteriorly in its lower half, 
having a short termination. Pectoral spine rather stronger but not 
nearly so long, being only 4 of the length of the head, serrated on 
both sides. Adipose dorsal low. Caudal lobed. 
GLYPTOSTERNUM TELCHITTA, Ham. Buch. 
In Hamilton Buchanan’s MSS. is one of this species termed 
Pimelodes * nibriundus. The drawing is 3} inches long. Six speci- 
mens exist in the collection ; they are identical with the three typical 
specimens of G. trilineatus, Blyth. 
In the genus Hara, Blyth, there are examples of the H. buchanani, 
Blyth, and H. filamentosus, Blyth. The species given in the 
‘Fishes of Malabar’ as H. malabarica, Day, does not belong to this 
genus, but is a Macrones. 
In the genus Amb/ycetis, Blyth, the two specimens of A. mangois, 
H. B., and A. tenuipinnis, Blyth, are identical. As to the A. ceeu- 
tiens, Blyth, the specimens are not in a good state; they, however, 
appear very similar to 4. mangois, H. B. 
ExosTOMA ANDERSONHJ, sp. n. 
Ded/Os Pcl 2 Vos. aye > ie A. 
Length of head 1, of pectoral 4, of base of first dorsal ,4,, of base 
of adipose dorsal 3, of base of anal 5), of caudal + of the total length. 
Height of head 54, of body 14, of first dorsal ='5, of ventral °;, of 
anal 51, of the total length. 
Eyes. Very minute and covered by skin, situated on the upper 
surface of the head, midway between the snout and posterior ex- 
tremity of the opercle, whilst their space apart equals their distance 
from the posterior nostril. A cirrus exists between the two nostrils, 
which are situated close together and a little posterior to the short 
maxillary cirrus, which has a widely dilated base consisting of a flap 
of skin having a second attachment which passes to the lower lip. 
Mandibular cirri on a transverse line ; they are rather short, but the 
outer pair are the longer. Lips thick and studded with glands. 
The isthmus is divided by aslight sulcus from the body, but is con- 
tinuous with the branchial membrane. Branchial aperture narrow, 
not extending on to lower surface of head. Upper surface of head 
covered with skin. Humeral process large. Head depressed, 
rounded anteriorly. Mouth transverse. 
