I'LATE IV. 



MADRAS FISHERIES, BULLETIN No. 5. 



Fig. 14. — Arcachon. A series of ruche cases in position along the 



MARGIN OF A CHANNEL. 



Fig. 15. — An Arcachon oyster iark, showing two "ambulances," 



palisades and claires. the foreground is covered with 



one-year old oysters. 



[Pkoto. J. Hor>ifll.\ 



