514 SURGEON F. DAY ON INDIAN FISHES. [Nov. 11, 
its external conformation in every respect shows it to be the mature 
S. lanceolatus, Bloch. 
Whilst mentioning this question of cecal appendages, I may 
observe that the following are the numbers which I have found 
existing in specimens in Madras during the last two years :— 
S. serillus, C. & V., and S. bontor, C. & V., from 50 to 60; S. 
hexagonatus, 32; S. sonnerati, C. & V., 12 to 13; S. eyanostigma- 
toides, Bleeker, 12. 
MESOPRION THERAPON, Sp. nov. 
B: vii. D, 10/14. “P.15 V.1/s. A-3/8? -©.18) Shia. 
IGS es 6/1 Ts 
Length of head +4;, of pectoral fin 2, of caudal 2 of the total 
length. Height of head 7, of body 4 of the total length. 
yes. Diameter 2 of the length of head, 13 diameter from end of 
snout, 1 diameter apart. 
The posterior extremity of the maxilla extends to beneath the 
anterior margin of the orbit. Preopercle with a wide open notch, its 
vertical margin finely serrated. 
Teeth villiform, with a pair of canines on either side of the middle 
of the upper jaw, the external being very large; an outer enlarged 
row in the lower jaw, the largest being posterior ; a triangular villi- 
form patch on the vomer; and a band on the palate. 
Fins. Third dorsal spine the longest. Pectoral pointed. Third 
anal spine slightly the longest and strongest. Caudal lobed. 
Colours. In spirit, whitish, with six black horizontal bands from 
the head along the body, and six short, badly marked, vertical ones 
from the dorsal fin, the crossing of the two sets forming large white 
spots on the upper third of the body. A deep-black mark at the 
base of the caudal fin. A white band across the occiput, which is 
continued over the preopercle. Fins stained grey. 
One specimen, 6 inches long, from Ceylon, and a second, 9 inches 
long, from the Andamans. 
DIAGRAMMA ALTA, Sp. Nov. 
B. vi. D. 14/16. V.1/5. A.3/7. C.15. L.1.59. L. tr. 10/24. 
Length of head 2, of pectoral ~7;, of caudal + of the total length. 
Height of head 2, of body nearly 3, of dorsal spines 3, of dorsal rays 
above 4, of anal spines } of the total length. 
Eyes. Diameter } of length of head, | diameter from end of snout, 
? of a diameter apart. 
Body elevated and strongly compressed. 
Preopercle serrated, most coarsely towards its angle. The posterior 
extremity of the maxilla extends to below the anterior third of the 
orbit. A few small pores exist under the mandible. 
Teeth villiform, withont canines. 
Fins. Dorsal spines strong, the third and fourth the longest, 
interspinous membrane rather deeply notched. Second anal spine 
much the longest and strongest. Caudal truncated. 
