POLYCHAETOUS ANNELIDS FROM CHINA — TREADWELL 263 



narrow to a blunt point. On the concave surface of the terminal 

 portion are about six toothed plates. 



The elj^ra overlap on the mid-dorsal line of the body. They are 

 oval in outline, and the greater part of the surface is covered by pig- 



FiGUKE IS.— N'ew species of Lepidonotus, Lepidasthenia, and Marphysa. 



a-d, Lepidonotus niinutus: a, Prostomium, X 20; b, parapodium, X 27; c, seta, X 185; d, elytron, 



X45. 

 e-h, Lepidasthenia ocellata: e, Prostomium, X 10; /, parapodium, X 15; g, slender toothed seta, 



X 185; h, ventral seta. X 08. 

 i-o, Marphysa orientalis: i, Anterior end, X 4; j, first parapodium, X 22.5; k, tenth parapodium, 

 X 22.5; /, middle parapodium, X 18; m, compound seta, X 185; n, ma.xilla, X 9; o, half of 

 mandible, X 9. 



ment patches, which are denser near the point of attachment and 

 extend to the outer lateral margin, leaving the other margins clear 

 (not shown in fig. 18, d). Blunt spines are scattered at about equal 



