VERMES 129 



Amage pusila Verrill 



A small worm inhabitating mud tubes below low 

 tide line. New England and New Jersey. 



Sthenelais leidyi Quatrefages 



(S. pida Verrill) 



A scale worm, up to 6 inches in length and com- 

 posed of more than 100 segments. Body gray with a 

 dark stripe along the middle of the back ; head brown 

 with one red spot and two white spots. Shallow 

 water, New England to Carolinas. 



Autolytus varians Verrill 



A slender worm, about an inch in length. The 

 intestines are marked with bright red spots which 

 can be seen through the body wall; often found 

 among hydroids. Known from Maine to North Caro- 

 lina, but rare in New Jersey. 



Cistenides gouldii Verrill (Mason Worm) 



(Pedinaria gouldii Verrill) 



PLATE XII. Fig. 3 



This worm constructs conical free tubes of sand 

 grains arranged in a single layer bound together by 

 a waterproof cement. Body red or flesh color with 

 groups of golden bristles (setae). Lives in sandy 

 mud from between tides, North Carolina to Maine. 

 The characteristic tubes are frequently found on 



