68 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



Family AMMOTHEIDiE 



Lecythorhynchus marginatus Cole 



I 1, II 9, III 10. In a few cases I seemed to be two-jointed, but 

 this was due to internal structures and not a true joint. Ill in a 

 number of cases had fewer joints than 10; it is possible that these 

 were young or the results of mutilations. This is one of the larger 

 species. The body and legs are of a reddish brown color. Sixty- 

 five specimens were obtained; many of the males bore eggs. They 

 were found among the red seaweeds, especially among mussels well 

 out on the points. Their colors matched those of the red sea- 

 weeds with which they were associated; they were seldom found 

 where Caprellidas were abundant. 



Ammothella tuherculata Cole 

 I 3, II 9, III 10 joints. Tubercles on the dorsum, light brown 

 in color. Thirteen specimens were obtained, found usually among 

 the older strongly chitinized polyzoan branches; also found occa- 

 sionally among similar growths on mussels. 



Ammothella bi-unguiculata var. californica Hall 

 I 3 j. chelate, II 9, III 10. Straw colored; found among mussels. 

 Two specimens found, neither with eggs. 



Ammothella spinosissima Hall 

 I 3, II 9, III 10. Three large branched spines on the back. 

 Branched spines on the legs. This very interesting pycnogonid was 

 found under stones. Four specimens were obtained; two of these 

 bore eggs. The long spines and hairs catch sand grains and may 

 make the individuals look like little heaps of sand. All were found 

 under stones. 



Tanystylum intermedium Cole 

 I 2, II 6-7, III 10. These small white pycnogonids were very 

 abundant among Polyzoa. A few were found wandering from this 

 locality. Sixty-five specimens were collected, many with eggs. 



Tanystylum orhiculare Wilson 

 I 1, II 6, III 10. I have some doubt as to this determination. 

 This may be a new species, but it is similar to the eastern form. 



