314 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



Paraonis (Paraonides) lyra Southern, 1914, p. 94-5, fig. 22. Ireland. See 



Fauvel, 1927a, p. 72, fig. 24 a-f. 

 Paraonis {Paraonides) neapolitana Cerruti, 1909, pp. 493-495, pi. 18, 



figs. 7, 19-21. Gulf of Naples in 5 meters. 

 Paraonis paucibranchiata Cerruti, 1909, pp. 498-500, pi. 18, figs. 8, 27. 



Mediterranean Sea. 

 Paraonis tenera Grube, 1873. Adriatic Sea. Incompletely known, see 



Fauvel, 1927a, p. 72. 

 Scolecolepis (?) jeffreysii Mcintosh, 1879, pp. 506-507, figs. 13, 14. 



Davis Strait, Greenland, in 20 fathoms. Referred to Aricidea 



jeffreysii, see below. 

 Scoloplos (Naidonereis) dubius Augener, 1914, pp. 31-32, pi. 1, fig. 



5, text-fig. 3. Sharks Bay, southwestern Australia. Referred to 



Paraonis dubia, see Augener, 1923, pp. 72-75, fig. 25. 

 In addition, Heterospio Ehlers (1874, pp. 296-297), erected for H. 

 longissima Ehlers from the northeastern Atlantic Ocean in 426 fathoms, 

 shows affinities with the paraonids rather than with the spionids; how- 

 ever the branchial processes are said to be present from the first segment, 

 as in members of Apistobranchidae. 



Key to Genera and Subgenera 



1. Prostomium with a median antenna 2 



1. Prostomium without a median antenna 3 



2. Modified setae (pi. 43, fig. 3) present in posterior neuropodia 

 Aricidea, sensu stricto 



2. Modified setae (pi. 43, fig. 4) present in posterior notopodia 

 Aricidea (Cirrophorus) 



2. Modified setae absent .... Aricidea (Aedicira) 



3. Abdominal neuropodia with modified setae (pi. 44, fig. 3) 

 Paraonis, sensu stricto 



3. Abdominal notopodia with modified setae 



Paraonis (Paraonides) 



Genus Aricidea Webster, 1879, sensu stricto 

 Type A. fragilis Webster, 1870 



The prostomium has a median antenna; a pair of eyespots is present 

 or absent. Branchiae are present from the fourth or a later setigerous 

 segment and number 15 to 60 or more pairs; they are absent from pos- 

 terior segments. Parapodia are present from the first or second visible 



