296 bulletin: museum of comparative zoology. 



Encrinuridae with pygidia whose simple pleural ribs do not end in spines, 

 and whose glabellae have a pair of furrows which emerge on the front instead 

 of the lateral border. 



Type, Ectenonotus westoni (Billings). 



Another species is E. odocostatus (Reed) from Glensaul district in 

 Ireland. 



