118 



UNITED STATES NATIONAL MUSEUM BULLETIN 251 



and 4 mm. in lieight. The basal peduncular portion is milky white, 

 with distal corona faintly brownish violet. 



Test soft, gelatinous, and translucent; containing fine sand grains 

 and fecal pellets at proximal part of peduncle. Zooids so strongly 

 contracted that they are only 3.8 mm. in length at maximum. Both 

 apertures 6-lobed. Thorax faintly purplish brown; approximately 

 10 longitudmal muscles on each side, but without distinct transverse 

 muscles. Three stigmatal rows present, exact number of stigmata in 

 each row not clear because of strongly contracted state. Stomach wall 

 smooth, proximal portion of rectum distinctly constricted from middle 

 intestinal portion, but forming no caecum there. 



50. PEudistoma tokarae Tokioka 



Figure 41c 

 Eudistoma tokarae Tokioka, 1954a, p. 254, pi. 29, figs. 1-2. 



MATERIAL EXAMINED 

 Philippine Islands: Baliwasan ; W. R. Taylor, sta. 10. Oue colony (USNM 

 11655). 



a 







s^ 



b 



Figure 41. — a, Eudistoma aviplum (Sluiter): section of the branchial siphon (t.= tentacle). 

 b, Eudistoma rubrum Tokioka: 12 mm. long colony from the Gilbert Islands, c, ^.Eudi- 

 stoma tokarae Tokioka: right side of thorax from the 20 mm. long Philippine colony. 



