JOURNAL OF ENTOMOLOGY AND ZOOLOGY 243 



among the rootlike holdfasts of the Macrocystis at a depth of four 

 to six fathoms. Moreover T. marina is not reported as occurring 

 farther south than Pacific Grove. There seems to be some reason 

 for considering this a new species, but further investigation, and 

 perhaps a study of comparative material, will be necessary to 

 determine its systematic position. 



CALYPTOBLASTEA 

 Family SERTULARIIDiE 



Sertiilarella trhiispldata (Alder) 



Sertularia furcata (Trask) 



Both of the above forms were found on the washed-up holdfasts 

 of Macrocystis. 



Family PLUMULARIID.^ 



Aylaophema iuconspicita (Torrey '02) 

 Torrey's description gives "hydrocladia 3-4 mm. long." Out of 

 a large number examined, howe\'er, I found none with hydrocladia 

 more than 1.5 mm. 



Aglaophenia struthiouides (Murray) 

 Both A. iuconspicua and A. strntliioiiides were taken from the 

 red algae brought in by the tides. 



Pliiniuhiria setacea (Ellis) 

 This form appears to have a wide variation in its bathymetric 

 distribution. Specimens were collected from the mussels which 

 are uncovered at mid-tide, and from the carapace of Loxorhynchus 

 grandis, a deep-sea crab that is only rarely brought to shore by the 

 highest tides. 



Pliimtilaria hujoiifera (Allman) 

 Found on kelp holdfasts. 



Antciiella avalonia (Torrey) 

 Taken in tow-net from floating red algas. 



