[331] THE BRYOZOA 239 



The colony is gelatinous and composed of but one layer, and the 

 polypides, which are inclined somewhat to the surface, lie imbedded 

 in tlie matrix. The orifices are circular and open upon distinct 

 papillae. 



Family FLUSTRELLID^. 



FLUSTRELLA Gray. 



FLUSTRELLA HISPIDA Fabricius. 



Flustrella hispida Hincks ('80), pi. LXXli, figs. 1-5. 

 Flustrella hispida Johnston ('47), pi. Lxvi, fig. 5. 



Local distributio7i. — Yakutat, forming branching masses ; Lands 

 End; Fort Point, California. 



Foreign distribution. — Common in Britain; Bahusia ; Finmark ; 

 Greenland ; Heligoland ; Roscoff ; France. 



Family VESICULARIID^. 



BOWERBANKIA Farre. 



BOWERBANKIA IMBRICATA Adams. 



Bowerbankia imbricata Hincks ('80), pi. Lxxiii, figs, i, 2. 

 Bowerbankia densa Farre ('37), pi. xx and xxi, figs. 1-16. 



Habitat. — Creeping over other Bryozoa. 



Local distribution. — Orca ; Yakutat; Lime Point, California ; Vi- 

 rago Sound, Queen Charlotte Islands. 



Foreign distribution. — Common on the coast of Britain; White 

 Sea; Caspian Sea; Ostend; Roscoff. 



Suborder PHl^'LACTOL^MATA Allman. 



Family PL UMA TELLIDyE. 



PLUMATELLA Lamarck. 



PLUMATELLA REPENS Linnaeus. 



Plumatella repetis Allman ('56), pi. v, figs. 1-8. 

 Plumatella repens Johnston ('47), 2d ed., p. 403, fig. 76. 



Local distribution. — Water-lily pond at Kadiak ; Lake Washing- 

 ton, Seattle ; Mountain Lake, San Francisco. 



Foreign distributioti. — Through Great Britain ; Lake Lucerne ; 

 Lake Como ; Alpine lakes ; lakes in the Pyrenees ; France ; Italy ; Ger- 

 many ; Prussia ; Sweden ; Denmark. 



