NEMERTEANS 123 



41. Lineus viridis (Fabr.) Verrill. Southeastern coast of 

 Alaska. 



42. L. torquatus Coe. Pacific coast of Alaska. 



43. L. rudesccns sp. nov. Monterey Bay and San Pedro, Calif. 



44. L. flavesccns sp. nov. Southern coast of California. 



45. L. -pictifrons sp. nov. San Pedro, Calif. 



46. Z-. ivihoni sp. nov. Monterey Bay, Calif. 



47. L. albolincatus sp. nov. Monterey Bay and San Pedro, 

 Calif. 



48. Micrura nigrirostris sp. nov. San Pedro, Calif. 



49. M. verritti Coe. Pacific coast of Alaska to Monterey 

 Bay, Calif. 



50. M. tmpressa (Stimpson) Coe. Bering Strait; Puget 

 Sound (?) 



51. M. alaskensis Coe. Pacific coast of Alaska. 



52. Cerebratulus herculeus Coe. Southeast coast of Alaska ; 

 Puget Sound. 



53. C. marginatus Renier. Southeastern coast of Alaska to 

 southern coast of California ; New England to Greenland ; 

 northern coasts of Europe ; Mediterranean Sea. 



54. C. occidcntalis Coe. Pacific coast of Alaska to British 

 Columbia. 



55. C. longiceps Coe. Yakutat Bay, Alaska. 



56. C. montgomeryi C.QQ. Aleutian Islands, Alaska, to Puget 

 Sound. 



57. C. albifrons Coe. Southeastern coast of Alaska to 

 southern coast of California. 



Of the above 57 species known from the Pacific coast of 

 North America, only 7 have been recorded in other parts of the 

 world. Of these seven species three Cephalothrix lincaris^ 

 Tctrastcmma dorsale and Ccrcbratulus marginatus occur also 

 both on the east coast of North America and in Europe ; three 

 others Amphiporus angutatus, A. cruentatus and Zygeupolia 

 littoralis are found in New England, but are not known from 

 Europe; while a single species Emplectonema gracile is 

 common in Europe, but has not been recorded from the east 

 coast of America. 



