224 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



Regeneration of lost anterior and posterior ends has been noted 

 (Mau, 1881, p. 425). Caudal regeneration has been described also for 

 Phylo foetida by Probst (1931, pp. 369-403). 



Glossary in Orbiniidae 



abdomen, the longer posterior part of the body in which the neuro- 

 podia become more or less dorsal in position, are slenderer and more or 

 less cylindrical, with restricted fascicles of setae, and the branchiae are 

 fully developed. 



acicula, or embedded supporting rods, present in all notopodia and 

 in abdominal neuropodia, in fascicles of 2 to 5 or 6 and fully embedded 

 or somewhat projecting from the parapodial lobe, or singly, heavy and 

 sicklelike as in Leodamas. 



branchiae, the prolonged, laterally fimbriated, fleshy processes 

 originating on the dorsal side of the body within notopodial bases; 

 usually present in all abdominal segments and sometimes on posterior 

 thoracic ones. 



cauduncini, like uncini but with a distal tail or pointed hood, present 

 in thoracic neuropodia in Protoaricia. 



brush-tipped setae, modified setae in anteriormost segments in Califia 

 only. 



dorsal ciliary ridges (dorsal "Flimmerwulste" of Eisig), the con- 

 tinuous, transverse ridge across the middorsum between branchial bases ; 

 more or less continuous with the lateral fimbriae of the branchiae. 



dorsal cirrus, see notopodial postsetal lobe. 



flails or flail setae ("Geisselpfriemen" of Eisig and "soie a fleau" of 

 Fauvel), the abruptly bent abdominal neuropodial setae present only in 

 Scolaricia. 



furcate setae or lyre, lyrate or forked setae, the short, bifurcated 

 setae accompanying pointed setae in abdominal or posterior thoracic 

 notopodia. 



glandular organ, the large, flask-shaped, thick-walled sack located 

 in posterior thoracic segments in Phylo, associated with modified spines 

 (called "poches glanduleuses" by Claparede, "Drusenorgane" by Soder- 

 strom). 



interramal cirrus, or intercirrus, a slender, short to long, simple lobe 

 between notopodia and neuropodia of posterior thoracic and anterior 

 abdominal segments, limited to some species in a few genera and equi- 

 valent to the lateral organ. 



