POLYCHAETE WORMS, PART 1 



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Figure 82. — Trochochaetidae, Trochochaeta multisetosa: a, dorsal view anterior end, ten- 

 tacular palps missing; b, same, ventral view; c, lateral vicvv^ anterior end with proboscis 

 extended; d, 2 parapodia from middle or anterior abdominal region, dorsal view; e, para- 

 podium from posterior abdominal region, with notopodial acicular setae withdrawn; /, 

 same, with notopodial acicular setae extended. 



tend down ventrally, flexible and variable in shape, rounded anteri- 

 orly. Posterior part convex, with 2-4 small inconspicuous eyes, with 

 longitudinal crest extending posteriorly on first setiger as a narrow 

 caruncle, without distinct antenna. Paired tentacular palps often 

 missing, attached between base of prostomium and first setiger, large, 

 cylindrical, extensible, with longitudinal groove along side facing the 

 mouth. Large triangidar mouth on ventral side of first setiger. Pro- 



