PLATE XVI. 



Fig. 81.— Continuation of series 63. Taken a little posteriorly to that of fig. 80. s Ob. X 8 Oc. Camera. X 130. 

 Fig. 82. — Continuation of series 63. Typical transverse section through the middle of the trunk, 'i Ob. XS Oc. 



Camera. X 130. 

 Fig. 83. — Longitudinal section through the recipient and distributing vessels. J Ob. x 4 Oc. Camera. X 450. 

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