156 ALLAN' HANCOCK PACIFIC EXPEDITION'S VOL. 25 



PLATE 9 



Tubes of ONUPHIDAE 



Upper. Diopatra ornata Moore ( Sta. 4770) shoeing parts of three 

 tubes and a specimen protruding from the tube at the left, x 1. 



Lower left. Nothria pallida Moore (Sta. 4846), showing two tubes 



and specimen removed from one of them, x 1. 

 Lower right. Diopatra tridentata Hartman (Sta. 2831) showing two 



tubes, x 1. 



