284 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



Distribution. At present known only from Puget Sound and south- 

 ward to Ensenada, Mexico. 



52a. Nemertopsis gracilis, variety bullocki, new variety 



(Fig. Zb) 



This variety differs from the typical form in having the longitudinal 

 brown stripes connected at their anterior ends by a broad transverse band 

 of the same color. In some individuals the stripes are inconspicuous in 

 intestinal region or interrupted by paler areas to form 2 rows of small 

 oval brown spots (Fig. 3b). 



Habitat. Nearly 100 individuals of various sizes representing both 

 young and sexually mature individuals were found by T. H. Bullock 

 and Charles Michener of the University of California in tangled masses 

 in narrow crevices of rock filled with fine mud and detritus near low- 

 water mark. 



Distribution. As yet known only from Montara, San Mateo County, 

 California. The typical form has been found at numerous localities from 

 Puget Sound to Todos Santos Bay (Ensenada), Mexico. 



Genus PARANEMERTES Coe 



Four species of this genus are found on the Pacific coast. 



Key to Species 



1. White, flesh color, pale orange, or light green; stylets without 



spiral fluting 2 



1. Brown or purple, on dorsal surface; stylets with spiral fluting 

 peregrina 



2. White or flesh color; ocelli numerous 3 



2. Pale gray or pale orange anteriorly; flesh color, grayish, or very 

 pale salmon posteriorly, usually much obscured by green color of 

 intestinal tract; ocelli few and inconspicuous .... californica 



3. With 4 pouches of accessoiy stylets; 9 or 10 proboscidial nei-ves; 

 opaque white; nephridia with a single pair of efferent ducts . pallida 



3. With 6 (or occasionally 12) pouches of accessory stylets; 11 or 

 12 proboscidial nerves; whitish, pinkish, or flesh color, nephridia 

 with about 5 pairs of efferent ducts carnea 



