NO. 2 HARTMAN : POLYCHAETOUS ANNELIDS 267 



Armandia bioculata Hartman 



Hartman, 1938, p. 105, figs. 51-54. 



This is found among algal growths on outer rocks, at low water line, 

 at Tomales Point and at Dillon Beach. It is distinguished through its 1 1 

 pairs of lateral eyespots, between setigers 6 and 17, its anal cirri consisting 

 of 5 smaller above and 2 larger below. Length is 12 to 20 mm. 



Ophelia limacina Rathke 



Fauvel, 1927, p. 132, fig. 46. 



This occurs at Tomales Point, in sands on the outer side. In life it is 

 iridescent blue. Length is about 30 mm. 



' Thoracophelia mucronata (Treadwell) 



Ophelina mucronata Treadwell, 1914, pp. 218-219, pi. 12, figs. 37, 38. 

 Hartman, 1938, p. 102. 



This occurs at Dillon Beach, in pure sandy beaches, sometimes 

 associated with Pectinophelia zvilliamsi (below), and was found as high 

 as the 5-\- ft. tidal level by T. L. Rodgers, while surveying a strip of 

 sandy beach near Perch Rock Point. Number of branchiae is 18 pairs. 

 Length is 63 to 97 mm. 



Originally described from southern California, T. mucronata has 

 since been reported from the west coast of Vancouver Island (Berkeley, 

 1932) ; in addition, it has been collected from areas between San Diego, 

 California, north to western Oregon. 



Genus PECTINOPHELIA Hartman 



This genus has the following in common with Thoracophelia (above). 

 The prostomium and first 2 setigers are set off from the rest of the body 

 by a constriction. There are heavy lateral ridges at the side, between the 

 tenth and eleventh setigers; the anus is surrounded by a large, broad, 

 triangular ventral lobe and a pair of lateral fringes. It differs in that the 

 branchiae have lateral pinnae instead of being cirriform, and parapodia 

 are less developed. Four species, of which 2 are Japanese, have been 

 referred to it (Hartman, 1938, p. 107) ; 2 others are known only from 

 Dillon Beach (below). 



Pectinophelia williamsi Hartman 



Hartman, 1938, p. 109, figs. 62, 63. 



This was collected in quantity from the sandy beach at Dillon Beach, 

 at moderately high water line, during the summer of 1941, by T. L. 

 Rodgers, while making a transect of the area. Mr. Rodgers found also 



