PLATE VIII. 



Fig. I. Emflecionema hiirgert. Outline of stylet apparatus (XSS)* Glacier 

 Bay. 



2. A7vfJitporus bimaculatus. Middle portion of proboscis, with four 

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



3. EmpUctonema gracile. Stylet apparatus of proboscis (XSo)- Popof 

 Island. 



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

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



5. Zygonetnertes albida. Middle portion of proboscis (X40)' Victoria, 

 B. C. 



6. Amphiporus nebulosus. Outline of stylet apparatus of proboscis (X 50) • 

 Kukak Bay. 



7. Paranctiiertes cornea. 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) 



