36 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



Parapodia have conspicuous foliaceous to lancet-shaped dorsal and 

 ventral cirri. The neuropodium in its presetal portion is broadly bifur- 

 cated; the postsetal lobe is broader, foliaceous or elongate triangular in 

 shape. 



Ophioglycera Verrill was erected for a single species, O. gigantea 

 Verrill (1885b, p. 436) from Rhode Island; the same species was later 

 named O. grandis Verrill, when only some figures were published 

 (Verrill, 1885a, pi. 42, fig. 185). Aside from these 2 references, the 

 name has remained obscure or unknown, largely because it was not 

 possible to include the genus, as known, with other members of the 

 family GONIADIDAE. The prostomium had been described as a 

 simple semicircular lobe without appendages. Arwidsson (1899, p. 31) 

 stated, however, that such was hardly the case since they are not lacking 

 in other representatives of the family. Also, he presumed that it is 

 doubtful if the genus should not be referred to Goniada (Arwidsson, p. 

 32). 



A reexamination of the specimen on which Verrill based at least 

 part, if not all, of his description, has verified Arwidsson's surmisal that 

 4 antennae are present, but that it does not go to Goniada Audouin and 

 Edwards, since chevrons are totally lacking and parapodial parts are 

 different. 



Ophioglycera gigantea Verrill is here believed to be closely related 

 to and congeneric with several other species from widely scattered geo- 

 graphical areas. They are Goniada eximia Ehlers, 1901 (in part), 

 Goniada (Leonnatus) foliacea Moore, 1903, Goniada distorta Moore, 

 1903 and Goniada longicirrata Arwidsson, 1899. 



Key to Species of Ophioglycera 



1. Dorsal cirri slender and greatly prolonged 



O. longicirrata, p. 40 



1. Dorsal cirri not nearly so long 2 



2. Prostomium with a longer basal and 3 smaller distal rings; 

 parapodial change at about segment 35 . . . O. foliacea, p. 40 



2. Prostomium with 8 or 9 rings 3 



3. Parapodial change gradual, between segments 55 to 90 . 

 O. gigantea, p. 37 



3. Parapodial change more or less abrupt, at about segment 

 58-59 4 



4. Proboscidial organs all of one kind . . . . O. eximia, p. 38 

 4. Proboscidial organs of 2 kinds O. distorta, p. 39 



