PLATE II. 



Fig. I. Emplectonema burgeri si^. nov. Anterior portion of an individual of 

 the pale variety. Glacier Bay. J^ natural size. 



2. E. burgeri. A large individual of the dark variety. Glacier Bay. % 



natural size. 



3. Tceniosoma princeps sp. nov. Large individual. Yakutat. % natural 



size. 



4. T. princeps. A contracted specimen in formalin. Cape Fox. Nat- 



ural size. 



5. Zygonemertes thalassina sp. nov. Sitka. Twice natural size. 



6. Paranctnertes peregrina sp. nov. Brown variety. Victoria, B. C. A 



small specimen. Natural size. Compare pi. iii, fig. 5. 



(88) 



