226 TREUBIA VOL. Il, 2—4. 
On November 14th 1919 I had a chance of examining a female 
sea-bandeng caught in a sero') (fishing-stakes) in the neighbourhood of 
Marunda. The animal was 112 cM. long (including the caudal fin) and 
had a weight of 11.900 grammes. The roe of this animal weighed no less 
than 1304 grammes. The number of eggs making up a weight of 1 gramme 
was counted by my assistant, Dr. H. C. DELSMAN, and it proved to be 
4370. The whole roe therefore consisted of about 5.700.000 eggs. This 
is a very large number. The fish in which up to now the greatest number 
of eggs, viz. up to nearly ‘9.000.000 has been found is, as far as I know, 
the cod (Gadus morrhua L.). Next follows the sturgeon (Acipenser sturio L.), 
with 3 to 6 million; the halibut (Hippoglossus vulgaris FLEM.) with over 
3.000.000 and the burbot (Lota vulgaris CUV.) with one million eggs. 
However not every cod-fish has nearly 9.000.000 eggs. FULTON (!°) 
mentions a cod that had less than 3.000.000 eggs. Hence it is not a priori 
impossible that the bandeng should have on an average near as many 
eggs as the cod. 
Beside the absolute number of eggs it is usual to state the number 
of eggs per pound of weight of the body. The following schedule shows 
the place which this particular bandeng of 14 XI 19 holds in this respect: 
burbot (Lota vulgaris CUV.): 500.000 eggs per pound of body-weight 
tench (Tinca vulgaris CUV.): SOOO EE Be a 
our bandeng of November 14th, 1919: 240.000 „ , a > 
carp (Cyprinus carpio L.): LOO ODO ARE maen Be en ff 
perch-pike (Lucioperca sandra CUV.): 100.000 „ , RE is 
cod (Gadus morrhua L.): OOOO 5 ERE ha ve à 
The halibut (Hippoglossus vulgaris FLEM.) and the sturgeon (Acipenser 
sturio L.) have respectively only 30.000 and 12.000 eggs per pound of 
body-weight. 
Of the numerous enemies that beset the bandeng living in the Batavia 
empangs various bandeng-rearers mentioned to me: the andjing-ayer 
or otter (Lutra sp.?)); the “dûk” (Haliaétus leucogaster GM. ?); various 
king-fishers (chiefly Alcedo beryllina VIEILL.); various herons, among which 
the kundul malam (Nycticorax griseus L.) plays an important part; the 
biawak or minyawak (Varanus salvator (LAUR.)); crocodiles; snakes hiding 
in holes in the banks of the ponds; fish of prey, such as the kakap 
(Lates calcarifer C. V.), the bandeng lelaki (Elops hawaiiensis T. REGAN) 
and the bulan bulan (Megalops cyprinoides (BROUSS.)). Of these species 
of fish the fry of their own accord penetrate into the ponds from the sea 
(cf. Chapter VIII). Finally also the crabs (Portunus sp.) are mentioned by 
the native fish-rearers as noxious to the bandeng. 
1) ch. VAN KAMPEN (”). 
2) not Lutra leptonyx HORSF.. 
