78 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 16 



costae low, rounded, irregularly granulated, with narrow interspaces 

 which are occasionally flat; columella moderately small, consisting of 

 interlacing paliform teeth. 



Dimensions of coralluni: Height 8 mm, narrow diameter of calice 

 10 mm, depth of calice 5 mm. 



Remarks: Verrill's (1870) description of this species is very good ; 

 the present material agrees in all respects with it. 



Hypo type: Cat. no. 39.1 (Station 275-34). 



Material examined: The hypotype. 



Distribution: West of islets off Navidad Head, Tenacatita Bay, 

 Mexico, 25-35 fms. 



