NEMERTEANS 



119 



these forms, which are common both to the California coast and 

 to Alaska, were found at Monterey Bay, ten at San Pedro or in 

 the deep water in the vicinity, while only two were collected at 

 San Diego, and these were both common in the other two locali- 

 ties. At San Diego, however, the opportunities for collecting 

 were comparatively limited, and but a short time was spent at 

 that place. Of the ten Alaska species found at San Pedro, five 

 only were collected at Monterey Bay, although in all probability 

 the others will be found to occur there. 



There can be no doubt that future collections will add mate- 

 rially to the number of forms whose range extends from Alaska 

 at least as far southward as Monterey Bay or even to Point 

 Conception. And while this is a considerable range geographi- 

 cally, yet the environmental conditions of the marine forms are 

 not greatly different between Monterey Bay, Puget Sound, 

 Sitka, and the eastern Aleutian Islands. The temperature of 

 the water is but a few degrees different, and in some seasons of 

 the year is actually warmer on the coast in portions of Alaska 

 than it is in Puget Sound or even in the deeper water off the 

 California coast. 



SPECIES NEW TO WEST COAST OF NORTH AMERICA 



In addition to the species recorded in the previous paper (pp. 

 i-iio), the following forms have since been studied, and are 

 described in this article. In accord with Bergendal's recom- 

 mendation^ the orders Protonemertea and Mesonemertea of 

 Burger are placed together under the older order Paleonemertea 

 proposed by Hubrecht. 



Paleonemertea. 



1. Carinella frenata sp. nov. San Pedro, Calif. Not 

 common. 



2. C. alhocincta sp. nov. Off San Pedro, Calif., in 50-100 

 fms. Common. 



3. C. cingtdata sp. nov. Monterey Bay, Calif., in 14 fms. 

 Not common. 



Hoplonemertea. 



4. Ncmertofsis gracilis sp. nov. Monterey Bay, Calif. 

 Not common. 



iKongl. Vetenskaps-Akad. Forhandlingar, pp. 721-742, 1900. 



