— 12 — 
it, but was much puzzled to account for many marked discre- 
pancies between it and Dr. Gunther's description of it. It 
was roughly skinned and stuffed to be sent home to be pro- 
perly mounted, and when dry developed fresh peculiarities, 
especially a 3rd series of teeth in the lower jaw which were 
hidden in the flesh of the fresh fish. I have every reason to 
think it is the Subgenus : JB. Ginglymostoma concolor (cantor) 
(Syn. Nebrius concolor Rupp) said to be a native of the Red 
Sea, Indian Ocean, and Indian Ai’chipelago ; specimens have 
been sent from Java and Penang to British Museum, but not 
from this Island. 
“ The following are its exact proportions taken from the 
fresh : 
„ Total length 33 inches ; from centre of snoutli to top of 
5th gill cover 6£ inches ; from ventral to anal fin 3f inches ; 
from 1st to 2nd dorsal 31 inches ; between anal fin and 
lower lobe of caudal at base only one inch 7 lines ; from top 
of 5th gill cover to the hinder part of base of 1st D. 10| inches. 
The caudal is contained exactly three times in the total length. 
“ The head is very flat and depressed ; snout rounded and 
obtuse ; eyes very small and so placed as to give a very cun- 
ning sly look to the creature : spiracle close behind eye ; the 
angle of all the fins very round ; the nasal margin of lip 
has two short cirrhi which when fresh curve back to the mouth; 
the labial folds are very large and fleshy. The scales on the 
head are smooth and when seen through a glass resemble a 
badly laid pavement of squarish stones, but they change on 
tne sides to a sort of spear point shape with one or more keels. 
Every part of body and fins is covered with scales even the lips 
and tips of the cirrhi. 
“ The fins unlike the G. brevicaudatum are unequal in 
size. The first dorsal and ventrals are opposite in front, but 
the latter are narrower; the second dorsal and anal fins start 
together, but the latter is very much wider than the former. 
“ I presume this is still a very young fish. The mouth 
when extended only measured inch. The upper jaw has a 
single row of cuspid teeth, but the lower jaw is furnished with 
a formidable array of 3 series, the first only appeared to be in 
function, the second turned inwards and the third lying flat, 
point inwards buried in the flesh, only developed, as 1 observed 
above when the fish was dry. The first series is only half 
completed, possibly the rest were knocked out when it was 
caught. 
