Z()()L0(;Y of the far FAvST. 
present over the commencement of the free portion of the tail is wanting. Platax 
vespertilio has a wide distribution ; its range extends from the Red Sea along the east 
coast of Africa through the seas of India to the Malay Archipelago and beyond. 
Family DREPANIDAE. 
Drepane punctata (Linn.). 
itSjd. Drefynne punctata. Day, op. cit. ]). ii6. pi. xxix, fig. 5. 
This species is represented by two specimens in the collection. Both of these were 
collected at vSinggora. Drepane punctata is found in the Red vSea, along the east coast 
of Africa, in the seas of India, the Malay Archipelago and .Australia. 
Family SCATOPHAGIDAE. 
Scatophagus argus (Bloch). 
li^•J^). Scatfiplia^iis ar^iis. Day. Fish. India I, p. 114. pi. xxix. iig. \. 
iqi^. .ScdtiiphaiJiis iirf^us. Weber. Siboga-Exped. Fische. p. 302. ])1. x. figs. 1-5. 
Of the several specimens of this species collected by Ur. Annandale at different 
places in the lake, there are only 5 adult or half-grown examples, while all the 
remaining individuals represent larval or post-larval stages. Four of the larger indivi- 
duals were obtained at Singgora, while one was netted in fresh water at the mouth 
of the Patalung river. The larval forms were obtained in the channel between B. Lem 
Chak and B. Pak Chaw and during shore- collecting at Koh Yaw. Most of the young 
Tkxt-1'IC, 5. -Lateral \ ie\v of a wry young specimen (j.2 mm.) of Sctilofliaf^iis ar'f^ii:^ (l?loch). 
ones represent .stages 3, 4 and 3 figured by Weber {op. cit., pi. x). There is, however, 
one very young specimen 3 2 mm. in total length. In it the yolk is still attached 
to the body and the fins are not definitely locali.sed, the caudal peduncle is long and 
narrow but the form of the head is very much like that of the other examples except 
that it is not provided with bony scutes and has two black hands running between 
the eyes. Unfortunately the next smaller individual is 12 mm. in length and in 
consequence I am not able to trace the development of the Tholichthys stage from the 
larval form. 
I am indebted to Dr. Annandale for the following note on the habit of the young 
