288 
PACIFIC SCIENCE, Vol. XIII, July 1959 
Figs. 1-5. Oryzotrochus stephensoni n. gen., n. sp. 1, 2, Calicular aspect of two paratypes. 3, 4, Lateral aspects of 
holotype. 5, Lateral aspect of paratype. 6, 7, Holcotrochus scriptus Dennant. Calicular and lateral aspects. (All 
figures 15 X.) 
