286 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



Habitat. In bays and harbors, burrowing in sand and sandy mud be- 

 tween tidemarks. 



Distribution. At present reported only from Monterey Bay, Califor- 

 nia, and southward to Ensenada, Mexico. 



54. Paranemertes carnea Coe, 1901 



P. carnea Coe, 1904, 1905, 1905a. 



Habitat. In bays and harbors; burrows in mud and sand between 

 tidemarks. 



Distribution. At present known only from Alaska, British Columbia, 

 and Puget Sound. 



55. Paranemertes pallida Coe, 1901 



P. pallida Coe, 1904, 1905, 1905a. 



Habitat. Under stones between tidemarks. 



Distribution. At present known only from coast of Alaska. 



56. Paranemertes peregrina Coe, 1901 



P. peregrina Coe, 1904, 1905. 



Habitat. Occurs in a great variety of situations between tidemarks, 

 especially under stones and among algae, mussels, and other growths on 

 spiles and rocks. The worms are active on cloudy days, often creeping 

 about fully exposed to the air. In some localities this is the most abundant 

 species of nemertean. 



Distribution. Commander Islands, Kamchatka, Aleutian Islands, 

 coasts of Alaska and British Columbia, Puget Sound to Ensenada, Mex- 

 ico. Common and of large size northward (variety alaskensis) ; less abun- 

 dant and smaller southward (variety calif orniensis). 



Reproduction and Regeneration. Gelatinous clusters containing many 

 ova deposited during the warmer months of the year. 



Genus DIGHONEMERTES Coe 

 Only one species belonging to this genus is known. 



57. Dichonemertes hartmanae Coe, 1938 

 (Plate 29, fig. 38) 



Body. Rather slender, rounded, and of firm consistency; shaped like 

 long cigar ; incapable of extensive contraction. 



