12 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



is taken in by everting the proboscis and the indigestible material is 

 thrown off from the mouth. The large jaws are used to grasp particles. 

 Stolte (loc. cit.) was not able to explain the use of the large glands 

 that are attached to the base of the proboscidial jaws; Ehlers (1868, p. 

 643) presumed them to be poison secreting, but this statement requires 

 substantiation. 



Details of development are unknown for species of GONIADI- 

 DAE. Most are subintertidal and thus not readily subject to experi- 

 mental treatment. In so far as known the sexes are separate. Epitoky 

 has been occasionally recorded but the details have not been described. 

 In Ophioglycera (below) it may involve median and posterior segments, 

 but epitokous setae have not been noted. Among individuals of Glycinde 

 armigera Moore (below) there are some in which median and posterior 

 segments have greatly prolonged composite (not simple) setae, recalling 

 those of epitokous individuals in some other genera. Increase in length 

 of these setae has affected only those in the middle of fascicles, where 

 both shaft and appendage are prolonged. In some specimens the body 

 cavity and parapodial bases of these segments are closely crowded with 

 ova, indicating approach or attainment of maturity. In some species of 

 Goniada the posterior parapodia may acquire some long simple setae 

 (Styp-Bowitz, 1941, p. 226). 



The GONIADIDAE are here recognized through 5 genera; they 

 are Goniada Audouin and Edwards, Glycinde Miiller, Ophioglycera 

 Verrill, Goniadopsis Fauvel and Goniadella, new genus. Each is dis- 

 cussed below. 



Key to Genera of Goniadidae 



1. Proboscis with organs of many kinds (pi. 6) . . Glycinde, p. 44 



1. Proboscis with organs of one or few kinds 2 



2. Proboscis with chevrons (pi. 3, fig. 5) 3 



2. Proboscis without chevrons 4 



3. Neuropodia with only spinigerous setae . . . Goniada, p. 13 



3. Neuropodia with falcigerous (pi. 5, fig. 5) and spinigerous 

 setae Goniadella, p. 41 



4. Neuropodia with only spinigerous setae . . Ophioglycera, p. 35 

 4. Neuropodia with falcigerous and spinigerous setae .... 



Goniadopsis, p. 41 



