Euphyllopoda 



Gil 



the latter as an almost worm-like, apparently very contractile and movable paired 

 appendage. Murdoch does not mention nor figure these "accessory claspers," but 

 records the longest of the three branches of the large claspers (A2) as a large, 

 curved process (armed on the tip and inner surface with numerous fine teeth) 



Fig. 2. Polyartemiella hazeni (Murdoch). Male. Teller, Alaska, August 3, 1913. 

 a. Ventral view of head. About x 50. 

 h. " " genitalia and abdomen. About x 50. 



c. Dorsal view ot head (claspers only indicated). About x 50. 



projecting from the middle of the lower surface of A2. He also mentions that 

 the extremity of the large claspers is bifurcated into two short, blunt branches, 

 also armed on the inner side with fine teeth, which correspond with my specimens 

 (see above). 



Ekman (1902), Daday (1910) and Pearse (1918) in describing the large claspers 

 as quadriramose, apparently include the "accessory claspers" as one of the branches 

 of the large claspers (A2), which is perhaps correct, considering that the "acces- 



