6 COE 



12. P. carnea sp.nov. Pacific coast. Vancouver Island (Shearer). 

 Common. 



13. Amphiporus ayigulatiis (Fabricius) Verrill. Pacific coast. 

 Abundant. 



14. A. bimaculatns sp. nov. Southeast coast. Uncommon. 

 Puget Sound (T. Kincaid). 



15. A. tigrinus sp. nov. Farragut Bay. Uncommon. 



i6. A. nebulosus sp. nov. Kukak Bay, Alaska Peninsula. Un- 

 common. 



17. A. leuciodus sp. nov. Southeast coast. Common. 



18. A. exilis sp. nov. Pacific coast. Abundant. 



19. Tetrastemma bicolor sp. nov. Kadiak. Not common. 



20. T. aberra?is sp. nov. Glacier Bay ; Prince William Sound. 

 Uncommon. 



21. T. ccecuf7i sp. nov. Dredged by Dr. RItter at Kadiak. Common. 



HETERONEMERTEA. 



22. T'cenioso7na pr triceps s^y. nov. Southeast coast. Uncommon. 



23. Linens viridis (Fabricius) Verrill. Annette Island. Com- 

 mon. 



24. L. torquatus sp. nov. Prince William Sound. Common. 



25. Micrura verrilli sp. nov. Prince William Sound. Not un- 

 common. 



26. M. alaskensis sp. nov. Southeast coast. Common. 



27. Cerebratulus herculeus sp. nov. Sitka. Not uncommon. 



28. C. tnarginatus Renier. Sitka. Not uncommon. 



29. C. occidentalis sp. nov. Yakutat ; Prince William Sound. 

 Vancouver Island (Shearer). Abundant, 



30. C. lo7igiceps sp. nov. Yakutat. Uncommon. 



31. C. montgomef-yi sp. nov. Puget Sound to Unalaska Island, 

 Common. 



32. C. albifrons sp. nov. Near Sitka. One specimen. 



It must be remembered that the above list represents but a 

 fevv^ weeks' collecting, and sometimes with only a few hours 

 at a locality ; too much confidence therefore should not be 

 placed on the distribution or comparative abundance of the 

 various species. Further research will undoubtedly add greatly 

 to the number of species, and judging from the number found 

 in so short a time it seems not unlikely that the list may eventu- 

 ally be more than doubled. 



