NO. 13 COE: REVISION OF THE NEMERTEAN FAUNA 299 



offshore Arctic current. On the Pacific coast the species ranges from 

 Arctic Ocean (60 m), Bering Strait, Siberia, Aleutian Islands, Kam- 

 chatka, Japan; Alaska, British Columbia, Puget Sound, and off Monterey 

 Bay, California. 



66. Amphlporus bimaculatus Coe, 1901 



A. bimaculatus. Coe, 1904, 1905, 1905a. 



Habitat. Lives in crevices of rocks and among algae, mussels, and 

 other growths on rocks and spiles, as well as beneath stones near low- 

 water mark. 



Distribution. Coasts of Alaska, British Columbia, Puget Sound, and 

 southward to Ensenada, Mexico. Larger and more common from Mon- 

 terey Bay, California, northward. 



67. Amphiporus calif ornicus Coe, 1905 



A. calif ornicus Coe, 1905a. 



Habitat. In crevices of rocks and beneath stones near low-water mark 

 and below to a depth of 80 m or more. 



Distribution. At present known only from southern California. 



68. Amphiporus cruentatus Verrill, 1879 



A. cruentatus Verrill, 1892; Coe, 1904, 1905, 1905a; A. lepatacanthus 

 Coe, 1905, 1905a. 



Habitat. Lives among algae and other growths on rocks and spiles be- 

 tween tidemarks and below. Common among kelp holdfasts. 



Distribution. Coast of New England and southward. Puget Sound 

 and southward to San Diego, California. Has been dredged at a depth of 

 80 m off southern California. 



69. Amphiporus flavescens Coe, 1905 



A. flavescens Coe, 1905a. 



Habitat. Under stones and among algae and other growth on rocks 

 and spiles between tidemarks and below ; common in some localities. 



Distribution. At present known only from Monterey Bay, California, 

 to Ensenada, Mexico. 



