NO. 1 HARTMAN: POLYCHAETOUS ANNELIDS 183 



Family Lysaretidae Kinberg 



The family Lysaretidae comprises a small group, with few genera and 

 species. The oldest species known, Aglaurides fulgida (Savigny), is well 

 nigh cosmopolitan in distribution. The family name, however, was erect- 

 ed, not for this species, but for a single species and genus, Lysarete brasi- 

 liensis Kinberg (1865) from Brazil. Ehlers (1887, pp. 107-108, pi. 33) 

 recovered this species in a collection from Florida, greatly enhancing the 

 original brief account, so that its relation to other members of the family 

 is now clearly set forth. 



Many authors since Kinberg have preferred to regard the Lysaretidae 

 either as a subfamily, Lysaretinae (Chamberlin, 1919, p. 325; Fauvel, 

 1923, p. 426, and others) or even as a group of the subfamily Lumbri- 

 nereinae (Treadwell, 1921, p. 94). Their affinities are unquestionably 

 with members of the superfamily Eunicea (as herein used), since they 

 have the proboscidial armature which is a distinctive feature of the en- 

 tire group. Aside from that, they have the long, maxillary carriers and 

 the median, unpaired ventral piece in common with the Arabellidae 

 (above). They lack ventral cirri; the prostomium is anteriorly broadly 

 rounded, provided with a transverse row of eyespots near the posterior 

 margin; there is a pair of eversible nuchal organs; there are often 3 

 small, simple antennae at the posterodorsal margin of the prostomium. 



The Lysaretidae are unique in that the dorsal cirri are enlarged, fol- 

 iaceous. Maxillae typically consist of 5 paired plates and a pair of long 

 carriers with a median unpaired piece. In Aglaurides Ehlers the carriers 

 are greatly prolonged basally (pi. 14, fig. 304), much as in Arabella 

 Grube. In Halla Costa (Fauvel, 1923, p. 426) they are similarly pro- 

 longed. In Lysarete Kinberg, however, they are notably shorter, and the 

 dentition of the large basal plates differs. In Iphitime Marenzeller, a 

 parasitic genus, the entire maxillary armature is greatly reduced, the 

 plates little more than strong hooks and the setal structures also hooklike, 

 adapted for clinging. Enonella Stimpson (1853, p. 34) is known only 

 through a very incomplete account, based on a collection from Grand 

 Manan, Bay of Fundy. The prostomial lobe is shown somewhat as that 

 of an Iphitime, but it is too incompletely known to detemiine its actual 

 status. 



The preferred use of the 2 names, Aglaurides Ehlers {^Aglaura 

 Savigny) and Oenone Savigny, has already evoked much discussion; the 

 clearest account has been set forth by Fauvel (1917, pp. 240-254) in a 

 discussion on A. fulgida (Savigny). Fauvel favors the use of Aglaurides 

 rather than that of the older Oenone Savigny, regarding the latter in- 



