132 K. J. Bush — Two genera of tubicolous Annelids. 



appressed, above one large truncated, more prominent, termi- 

 nal one ; abdominal nncini much smaller. Abdominal setae 

 more or less curved or bent, with elongated, regularly tapered, 

 somewhat angular blades ; hair-like along caudal region. 



The rounded, more or less thickened tubes taken from dead 

 coral seldom show any distinguishing characters. Roughened 

 by irregular lines , of growth and occasional resting stages, a 

 few show a varying number of longitudinal lines or carinas. 



Each species, however, can be readily identified by the form 

 of the horn-colored cap on its operculum, the other characters 

 appearing to differ only relatively. 



The generic name Par aver milia was proposed for this 

 group of species, with P. bermudensis as type. 



Pabavermilia bermudensis Bush 1905. 



Nine tubes of moderate size were found in 1898 and 1901, 

 dredged in 30-40 feet in Great Harbor and other localities at 

 Bermuda. They were taken usually from dead coral but 

 occasionally were attached to mollusks, forming an irregularly 

 twisted mass. The surface is sometimes ornamented with five 

 conspicuous, longitudinal carinae, the two outer ones usually the 

 largest. 



The species -can be readily recognized by the good-sized 

 bulbous operculum on its long, rounded, much annulated pe- 

 duncle, capped by an elongated horn-colored chitinous cone 

 which is asymmetrical and usually much curved, a few only 

 having the cone erect. This cone, resembling a .tiny spiral 

 shell, is made up of numerous saucer-shaped pieces diminish- 

 ing in size to the minute rounded tip, and are defined by 

 darker rings sometimes numbering twelve ; some are occasion- 

 ally wanting on the end. The erect cone is shorter, made up of 

 longer fewer pieces shown by a less number of rings ; these 

 may be designated as variety minor. 



The branchiae, about 12 in each lobe, are usually too much 

 curled to determine their length ; those of one animal are 

 extended and appear equal to about the length of the thorax 

 and are folded closely around the peduncle with the entire 

 operculum exposed. 



Thoracic membrane very delicate, excessively developed, 

 the angular side lobes folding over each other enwrapping the 

 body. Teeth on uncini sometimes numbering 18; caudal, 

 hair-like setae exceedingly long. 



Paraveemilia inteemedia sp. nov. 



Three animals, smaller than P. bermudensis, often light 

 olive-green in color, have from 10-12 branchiae in each lobe 

 and about 16 teeth on the largest thoracic uncini. 



