NO. 3 OSBURN : EASTERN PACIFIC BRYOZOA — CYCLOSTOMATA 745 



Division 4. Stolonifera Ehlers, 1876 



Zoaria with delicate creeping stolons, with occasional points of ex- 

 pansion where a diaphragm occurs and either stolonal branches or zooecia 

 may arise. A gizzard may or may not be present. 



Family Valkeriidae Hincks, 1877 



"Zooecia contracted below, deciduous, destitute of a membranous 

 area." Hincks, 1880:551. 



Genus VALKERIA Fleming, 1823 



Zoaria repent, with creeping stolons. Zooecia ovoid to cylindrical, 

 originating at the distal end of a short internode close to the diaphragm. 

 No gizzard present. Genotype: Ser tularin uva Linnaeus, 1767. 



Valkeria tuberosa Heller, 1867 

 Plate 79, fig. 7 



Valkeria tuberosa Heller, 1867:129. 

 Valkeria tuberosa, Harmer, 1915:76. 



Zoarium stolonate, internodes of variable length, ranging from 0.52 

 to 0.94 mm in length. At the internodes the stolon is expanded slightly, 

 with lateral branches arising immediately distal to the diaphragm. Here 

 the zooecia arise. The zooecia are small, ranging from 0.43 to 0.55 mm 

 in length, and have a narrow wrinkled base 0.03 to 0.04 mm in width. 

 Tentacles are 8 in number. Polypide lacking a gizzard. 



Previously reported from the Adriatic Sea, Red Sea, and Borneo. It 

 has not been previously recorded from the eastern Pacific. 



The specimens in the Hancock collection are from Lower California, 

 C. L. Hubbs, collector, no bathymetric data given. 



Genus AEVERRILLIA Marcus, 1941 



Zoaria creeping, minute. Stolons with short lateral peduncles to which 

 the zooecia are attached. Polypide with a prominent gizzard. Geno- 

 type: Biiskia setigera Hincks, 1887. 



Aeverrillia setigera (Hincks), 1887 

 Plate 79, fig. 8 



Buskia setigera Hincks, 1887:127. 

 Buskia setigera, Osburn, 1940:343. 

 Aeverrillia setigera, Marcus, 1941 :74. 



