POLYCHAETE WORMS, PART 1 



103 



Figure 27. — Hesionidae, a-b, Micro phthalmus aherrans: a, dorsal view anterior end; b, 

 dorsal view posterior end. c, Micro phthalmus sczelkowii, dorsal view posterior end. 



both dorsally and ventrall}', transverscl}^ banded dorsally in 2 to 4 

 poorly defined bands and ventrally in 4 irregular longitudinal bands. 



Biology. — Found at low water in sand and rabble, under stones, 

 and in shallow water on muddy bottom. According to Rasmussen 

 (195G), they lay eggs in an irregular oval sticky mucous mass, probably 

 early in the year. Adults massed with largo yolky eggs in June 

 (Barnstable Harbor, Massachusetts, June 22, 1959, H. Sanders). 



Material examined. — Type of Podarke caeca from Provincetown, 

 Massachusetts. Also Wellflect Harbor, north shore, sandy rubble; 

 Barnstable Harbor, 1959, H. Sanders. 



Distribution. — Ireland, North Sea (Helgoland), Massachusetts 

 (Capo Cod), north Japan Sea. Low water to 6 fathoms. 



