NO. 4 HARTMAN : POLYCHAETOUS ANNELIDS 445 



Genus EUNOTOMASTUS Mcintosh 

 Type E. grubei Mcintosh 



This genus has remained unknown except through a brief original 

 description based on a collection off Bermuda in 435 fms (Mcintosh, 

 1885, p. 388). The description is brief and obscure in some respects. 

 Regarding the anterior region, it is said that "a few of the anterior 

 bristle tufts [fascicles of pointed setae?] are absent, but about 16 pairs 

 appear to have been present." Also, "the dorsal bristles are continued 

 (in 4 segments) after the commencement of the hooks . . . The second 

 region of the body abdomen is not differentiated ... as in the ordinaiy 

 form." From the foregoing it seems that the type of the genus is char- 

 acterized in having 16 segments with pointed setae and 4 segments in 

 which notopodia are provided with both hooks and setae. The details 

 of the prostomium, accurate distribution of setae and hooks, lateral organs 

 and nephridia are not known. Eisig (1887, p. 873) considered the genus 

 doubtful since it is incompletely known. Until topotypes can be examined 

 it may be desirable to regard the genus and species questionable. 



