EXPLANATION OF PLATE VI. 



Figure 25. — Limnoria lignorum White, (p. 571 ;) dorsal view, enlarged ten diameters. 

 26. — Erichsonia filiformis Harger, (p. 570 ;) dorsal view, enlarged five diam- 

 eters. 

 27. — Erichsonia attenuata Harger, (p.'570 ;) dorsal view, enlarged three diam- 

 eters. 

 28. — Epelys trilohus Smith, (p. 571 ;) dorsal view, enlarged ten diameters. 

 29.— Livoneca ovalis Harger, (p. 572 ;) dorsal view, enlarged three diameters. 

 (Figure 25 was drawn by S. I. Smith ; 26 and 23 by 0. Harger ; 27 and 29 ly J. H. Enerton.) 



