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with membrane, appearing like double parapodia. The pharynx 

 is very large and projected as in Nereis. 



GENUS Nephthys 



N. ingens. Sometimes six inches long and one quarter of an inch 

 broad ; usually smaller ; color whitish, with red hlood- vessel showing on 

 dorsal side; appendages dark blown; moves 

 actively and burrows quickly into the mud ; 

 when captured often breaks off a portion of the 

 posterior end, which it is able to reproduce ; 

 proboscis large ; branchiae between the dorsal 

 and ventral parapodia. Found burrowing in 

 all kinds of mud on the New England coast. 



N. picta. More slender than N. ingens ; color 

 whitish, mottled with brown on the dorsal an- 

 terior end ; often a dark line down the back ; 

 head square in front and triangular in the back. 

 Found in sandy mud at low- water mark. 



FAMILY EIFNICIDJE 



These are beautiful worms, having a red- 

 dish-brown iridescent body, with bright-red 

 branching gills, which look like feathers, 

 along the back. They form parchment-like 

 tubes. 



GENUS Marphysa 



M, sanguinea. Length six inches or more ; 



color bronze or brownish-red and iridescent; 



has bright-red branched gills and six caudal cirri 

 of different lengths ; body flattened, except at the anterior end, where it 

 becomes narrow and cylindrical ; has powerful jaws. It is found under 

 stones and in clefts of rocks at low-water mark, or more commonly in 

 parchment like tubes on shelly beaches, from Cape Cod to New Jersey. 



Nephthys ingens. Anterior part 

 of body and extended proboscis ; 

 ventral view. Enlarged. 



GENUS Diopatrat, 



D. cuprea* This is one of the largest and most beautiful annelids. 

 It is found from Cape Cod to South Carolina at low- water mark, in sandy 

 mud-flats, living in long tubes which project above the surface two or 

 three inches and are hung with seaweeds and bits of foreign matter. 

 Diopatra is twelve inches or more in length and one half of an inch in 

 breadth. In color it is reddish-brown, specked with gray, and has a 

 brilliant whitish or opal-like iridescence. The appendages are yellowish- 

 brown, specked with green. The body is flattened. From the fifth seg- 

 ment long, dull to bright red, much-branched gills, resembling plumes, 



