130 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



Paramarphysa longula Ehlers 



Ehlers, 1887, pp. 99-100, pi. 29, figs. 3-12; Monro, 1933, p. 258. 

 P. obtusa Verrill, 1900, pp. 646-647; Treadwell, 1921, pp. 76-77, figs. 

 269-278. 



Collections.— A 12-39 (1) ; A 13-39 (1) ; A 20-39 (3) ; A 35-39 

 (2). 



Distribution. — P. longula has been reported widelj'^ from West Indian 

 and Bermuda localities; these records are from known ranges. 



Genus PALOLA Gray 

 Type P. viridis Gray 



Palola differs from Eunice Cuvier (with which it has usually been 

 included) and related genera in ( 1 ) lacking subacicular hooks and pecti- 

 nate setae; (2) having massive calcareous mandibles, greatly exceeding 

 the maxillary parts in size; (3) having branchiae (if present) limited 

 more or less to a far posterior region, these usually simple filaments or 

 at most consisting of a few filaments; and (4) having maxillary plates 

 that tend to be edentate or nearly so. 



The following species are herein referred to Palola. 



1. Palola siciliensis (Grube), p. 131. 



2. Palola viridis Gray (1847, p. 409) from the Navigators Islands 

 (Samoa). 



3. Palola edentulum (Ehlers) (1901, p. 130) from Juan Fernandez 

 and the tropical eastern Pacific. (I believe this to be identical with 

 Nicidion gallapagensis Kinberg, 1865, p. 43, from Chatham Island, 

 and both referable to Palola.) 



4. Palola paloloides (Moore), p. 131. 



The species of this genus are so closely related to one another, at least 

 in the preserved state, that it is diiUcult to separate them. They are all 

 very long, slender, and autotomize readilj\ The prostomial lobe is bifid 

 at its anterior margin, provided with 5 short, more or less smooth an- 

 tennae; peristomial cirri are similarly short, smooth. Branchiae (if pres- 

 ent) are limited to a far posterior region, from about segments 100 to 

 175, continued posteriorly to the end; mandibles are heavy, white; maxil- 

 lary carriers are 4 to 6 times as long as broad, approximately trapezoidal 

 in outline; the only maxillary plate that has diagnostic value is right 

 maxilla II, but it too may be subject to some individual variation. 



