202 JOURNAL. OF ENTOMOLOGY AND ZOOLOGY 



number of hydroids were found and among and near them quite a 

 number of A. calif ornicus were obtained. 



Three locaHties were mentioned last year in the httoral regions: 

 (1) under stones, (2) among coarse polyzoan colonies and (3) out 

 on mussel points among red sea weeds of various sorts. Three 

 other general regions may now be added: (4) among hydroids 

 especially large kinds, (5) among the stems and roots of Phyl- 

 lospadix, (6) at the bases of sea anemones or near them. In 

 every case except the last, hydroids or polyzoans may be near and 

 aid in determining the occurrence, but in some few cases as under 

 certain large stones, among seaweed and at times in Phyllospadix 

 roots, the polyzoans or hydroids are not evident. The food and 

 shelter of pcynogonids seem in large degree to depend upon these 

 two groups of animals, but pycnogonids probably feed on any soft 

 animal that comes near. Hall mentions one feeding on a nudibranch 

 and I saw a Palcne devouring a soft annelid worm, its claws and 

 proboscis were stained with its dark juices. 



In no case were pycnogonids found in unsheltered situations, they 

 were not found among corallines, nor among certain other sea- 

 weeds where the water was swift. Some forms were well inshore, 

 among these was AmmotheUa bi-nngiiiculata var. californica Hall, 

 which was found one day especially abundant under stones well 

 inshore. A. spinosissima was always found well inshore, a few 

 under stones but chiefly among Phyllospadix roots. Anoplodactylus 

 californicus was found well inshore. Pycnogonum stearusi Ives 

 was also found well inshore. The occurrence of the other species 

 was for the most part farther out than these last mentioned forms. 



A few points in connection with the reactions and general habits 

 of these animals might be recorded. I have seen the swimming 

 movements mentioned by Cole especially in Palene, T. intermedium 

 to a less degree, as also in H. viridintestinaUs. The other forms 

 are too heavy to swim or tread water. All the species with long 

 legs move much the same way in walking, alternate legs are moved 

 at the same time as a rule, although now and then adjoining legs 

 may be moved. In those with longer legs, these long appendages 



