PLATE VIII. 



Fig. I. Emplectonema biirgeri. Outline of stylet apparatus (X35)- Glacier 

 Bay. 



2. Ainphtporus bimaculatus. Middle portion of proboscis, with four 

 pouches of accessory stylets ( X 35 )• Glacier Bay. 



3. Emplectoitema gracile. Stylet apparatus of proboscis (Xso)- Popof 

 Island. 



4. Amphiporus tigrinus. Middle region of proboscis (X^o). Farragut 

 Bay. The deeply stained wreath of glands is indicated only in section. 



5. Zygonemertes albida. Middle portion of proboscis ( X 40). Victoria, 

 B. C. 



6. Atnphiporus nebulosus. Outline of stylet apparatus of proboscis (X 5o)- 

 Kukak Bay. 



7. Paranemertes carnea. Side view of head, with partially everted probos- 

 cis. The position of the lateral oblique furrows, and the arrangement 

 of the ocelli are indicated ( X S)- Taku Harbor. 



(100) 



