SUNIER: Marine fish-ponds of Batavia. 241 
Kampong Fluit (cf. Map I) I saw cut grass being thrown into the pond as 
food for the bandeng. 
On July 2nd 1918, at Tjilintjing, I saw bandeng-fry being fed with 
dedek (—rice-bran). VAN SPALL (%) also states that the bandeng-fry 
is occasionally fed with bran (cf. also page 219). 
The Chinese landlord of Tjilintjing, the owner of the ponds reproduced 
on photos 8 and 9 (Plates XIV and XV) told me that same day that the 
Chaetomorpha vegetation is not at its best as bandeng-food until it begins 
to grow old and turn yellow (cf. Chapter IV). The said landlord also 
informed. me that having a pond in which the “lumut” refused to grow, 
which in his opinion was owing to the pond in question being too deep, he had 
caused prahu-loads of lumut kain (Chaetomorpha), brought from elsewhere, 
to be cast into the pond. 
Finally on Juli 2nd 1918 at Tjilintjing I examined the contents of the 
stomachs of four more bandeng. In the stomachs of two large bandeng 
caught in one and the same pond, I found the remains (in a rather advanced 
stage of digestion) of leaves of Najas and Ruppia, further a good many 
Vaucheria-filaments, Chaetomorpha-filaments, Oscillatoria-filaments, remains 
of the tissues of higher plants (detritus), a small larva of an Odonate, a 
number of the small (shell-bearing) Gastropods that are usually found 
among the filamentous algae in the empangs, such as Chaetomorpha and 
Vaucheria (cf. Chapter VIII) and some mineral particles. The stomach 
contents of a third bandeng, from an other pond consisted of: plenty of 
Chaetomorpha and Enteromorpha, much Gaillionella (Melosira) and a few 
other Diatoms, some Najas-leaves and some Lynebya. Of this same bandeng 
I also examined the contents of the intestine, in which were found, besides 
the food components already met with in the stomach, some very few Cope- 
pods and some very few Folliculina’s. In the stomach of a fourth bandeng, 
weighing + 8 catties = + 5 K.G.), I found: Enteromorpha, Chaetomorpha, 
Ruppia-leaves and Gaillionella. 
On July 3rd 1918 I examined. the contents of the stomach of a 
bandeng brought to the Batavia Pasar Ikan (fish-market) from the empangs. 
It consisted of: a few Pleurosigma’s, and a few other bottom-Diatoms, 
a few bits of higher-plant tissues (detritus), a few Copepods, an occasional 
Ostracod, a few detached parts of the exoskeleton of small Entomostraca, 
and some mineral particles. 
Also of a few very young and small bandeng I was able to examine 
the contents of the stomach, respectively of the intestine. 
Thus on May 17th 1918 I bought some 30 bandeng-fry, which were 
turned into a small aquarium containing empang-water into which some 
Chaetomorpha had been put. On putting into this aquarium a quantity 
of “tay-ayer” from the empangs consisting of Schizophyceae-filaments 
(Oscillatoria, Lyngbya, Nostoc etc.) | found the young bandeng falling to 
very eagerly. The young animals however also ate of the filmy layer of 
