of the Virginian Coast. 



249 



slightly concave above. Middle and posterior regions 

 rounded. 



Color. The anterior region is white above ; the first 

 six segments are white below, with numerous brown 

 specks, which often run together, forming blotches, which 

 may occupy more space than the white ; remaining seg- 

 ments of this region white. Sometimes the 5th or 6th 

 segment is brownish-purple below, in which case the fol- 

 lowing one, two, or three segments are flake-white. Middle 

 and posterior regions yellowish- white above ; white to 

 light brown below. Between the segments of the last 

 region there is a narrow brown band running down the 

 sides. 



Tube. In front white, shining, transparent; further 

 back yellowish-white or brown, sometimes transparent, 

 sometimes opaque. It is annulated with raised bands, 

 which may be black, or white, or of the color of the tube ; 

 its diameter l'""^. 



Length of animal, 30-50'^°^. 



Diameter of anterior third, 0.5-0.8'°'°. 



Found in sand at low water; only in one place, but 

 there abundant. 



Fam. SPIONID^. 



NERINE Johnston. 

 IiTerine heteropoda n. sp. 



PL. Vm, PIGS. 103-110. 



Head, posterior two-thirds rounded (f. 103), swollen ; 

 anterior third suddenly acuminate, conical. Separation 

 between head and buccal segment distinct. Buccal segment 

 nearly as long as the next four segments together. The 

 long tentacles arise at the posterior lateral margins of 

 this segment; between their bases are four small black 

 eyes, two on each side, all on the same straight line. Just 



