EXPLANATION OF PLATE XIV. 



FiGTJEE 71. — Clymenella torq"uata, (p. 608;) natural size; lateral view. 



72. — The same ; head and extended proboscis ; front view. 



73. — The same ; posterior and caudal segments ; dorsal view. 



74. — Sternaspis fossor, (p. 606 ;) dorsal view. 



75. — Trophonia affinis, (p. 605;) anterior portion ; dorsal view» 



76. — Anthostoma robustum, (p. 597 ;) anterior portion of _^ body, head, and ex- 

 tended proboscis ; dorsal view, natural size. 



77. — Spio setosa, (p. 602;) anterior segments and head; side view; only one of 

 the two large tentacles is represented. 



78. — Polydora ciliatum, (p. 603;) anterior and posterior parts ; dorsal view. 



(Figures 71, 72, 73, 75, 76, were drawn from nature by J. H. Emerton ; 74, by A. E. Yerrill ; 77, 78, were 

 copied from A. Agassiz.) 



