coe: nemerteans of west and northwest coasts. 91 



the above species, 24 are believed to be undescribed, 2 only are 

 known from other parts of the world, while 2 other forms — 

 Taeniosoma mexlcana and Planktonemertes agassizii — have pre- 

 viously been recorded from the same localities. The single species 

 of Malacobdella is known from one specimen only, and has not 

 been sufficiently studied to determine whether or not it is specifically 

 distinct from those occurring in other parts of the world. 



In addition to the above species of marine nemerteans, Professor 

 Trevor Kincaid of the University of Washington informs me that 

 he has found a fresh-water form (Stichostemma) in the vicinity of 

 Seattle, Washington. This genus therefore is prol)ably distributed 

 from the Atlantic to the Pacific coasts of North America, having 

 previously been collected at numerous localities on the Atlantic sea- 

 board, in the states about the Great Lakes, in Nebraska, and now in 

 Washington. Its distribution through human agencies, by the 

 transportation of water-plants, is easily accomplished. 



Distribution of the Pacific Coast Species. 



Including the above, there are 86 species which are at present 

 known fi'om the Pacific coast, and their distribution, so far as can be 

 determined from the collections which have come into my hands, is 

 as follows : 



Paleonemehtea. 



1. Carinella rubra GrifRii. Aleutian Islands ; Pacific coast of Alaska ; 

 Vancouver Island, B. C. ; Puget Sound ; Pacific Grove, California. 



2. C. sexlineata Griflin. Sitka, Alaska, to San Pedro, California. 



3. C. capistrata Coe. Prince William Sound, Alaska, to Monterey 

 Bay, California. 



4. C.frenatu Coe. San Pedro, California. 



5. C alhoc'mcta Coe. Oft' San Pedro, California, 50-100 fms. 



6. C. cbigulata Coe. Monterey Bay, California. 



7. C.pellucida Coe. Coast of California from Monterey Bay to San 

 Diego ; eastern coast of United States, Long Island Sound to Cape Cod. 



8. Carlnomella lactea, gen. et. sp. nov. San Pedro, California. 



9. Carinoma mutabilis Griffin. Vancouver Island, B. C, to San Diego, 

 California. 



10. Cephalothri.r linearis (Rathke) Oersted. Whole Pacific coast of 

 Alaska to southern coast of California ; New England ; northern coasts of 

 Europe ; Mediterranean Sea. 



