Vol 13, No 1 (1931)

	HERPETOLOGISCHE NOTIZEN DR. FELIX KOPSTEIN 10.14203/treubia.v13i1.1918 \| Abstract views: 221 \| PDF views: 220	PDF 1-4
	NOTES ON FRESHWATER MOLLUSCA FROM THE MALAY ARCHIPELAGO TERA VAN BENTHEM JUTTING 10.14203/treubia.v13i1.1927 \| Abstract views: 239 \| PDF views: 383	PDF 5-14
	NOTES ON A SMALL COLLECTION OF AMPHIBIA FROM SUMBA PROF.DR. P. N VAN KAMPEN, 10.14203/treubia.v13i1.1928 \| Abstract views: 227 \| PDF views: 217	PDF 15-18
	UEBER DIE VARIATION VON LEPTOTRICHALUS PULLUS KLN R KLEINE 10.14203/treubia.v13i1.1929 \| Abstract views: 231 \| PDF views: 177	PDF 19-20
	A REVISION OF THE GENUS EPOPHTHALMIA BURM. (ODON., CORDULIINAE) M. A LIEFTINCK 10.14203/treubia.v13i1.1930 \| Abstract views: 396 \| PDF views: 219	PDF 21-80
	THE FISHFAUNA OF THE ROKAN MOUTH. DR. J. D. F HARDENBERG 10.14203/treubia.v13i1.1931 \| Abstract views: 261 \| PDF views: 176	PDF 81-168

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