sr TT DEERE 
gg mm lid; 7 £ 
ge 
ar 
ma, 
åg MAR VV HAN HE 
Sacs of A: pond 
ale: er rnpeg thickness of the different 
(Leitz obj. 6, oc. 1 
ca 
indicate the sinds of the tracheal trunks originating from the sacs. 
larva (young, 5 mm.) and B lake melde > eo to show 
parts of the walls. A €e ed ca. 250 dia 
diam, (L. obj. 3, oc. 4); camera er here AA! Akd B! myg B 
idensk. Meddel. fra Dansk naturh. Foren. Bd. 67. 3 
