344 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



PLATE 20 

 Orbinia cwvieri 



1. Thoracic segments 3 to 12, in dorsal view, xll. 



2. Median abdominal parapodium in anterior view, xlOS. 



3. Thoracic neuropodial uncinus seen from the front, x442. 



4. Thoracic neuropodial uncinus with maximum development of 

 ridges, seen from the side, x494. 



5. Abdominal notopodial furcate seta, x!383. 





