EXPLANATIONS AND REFERENCES, 

 PLATE LXVI. 



Fig. 1. TlIOMEYA FLUVIATILIS, .... .53 



" '2. TUOMEYA GRANDE, nearly twice the natural size, . 54 



u ;>. small part of a filament enlarged; the 



t outer membrane removed to show the in- 



ternal structure, . . . .54 



Figs. 4-ti. supporting branchlets at the nodes, . 54 



" 7, 8. part of a cord drawn out of the filament, . 54 



