PLATE IV. 



Figure 16.— Chirido tea coc-ca Harger (p. 338); dorsal view, enlarged uearlj' four 

 diameters ; natural size indicated by tlie line at the right. 



17. — The same; a, anteunula; &, antenna; each enlarged twelve diameters. 



18.— The same; a, masilliped from the right side, external view ; I, external 

 lamella ; m, maxillixied proper ; 1, 2, 3, lirst, second, and third segments 

 of the palpus of the uiaxilliped, enlarged twenty diameters ; h, one of 

 the first xiair of legs, magnified twelve diameters; c, uropod from the 

 left side, inner view, showing the two rami articulated near the tip. 



IP. — The same ; pleopods of second pair fi'om the right side, anterior views, 

 enlarged ten diameters ; a, common form in males ; h, rarer form in 

 male ; s, elongated stylet, articulated near the base of the inner lamella ; 

 c, form in the female. 



20. — Chiridotea Tuftsii Harger (i). 340); female; dorsal view, enlarged five 

 diameters; natural size indicated by the line at the right. 



21. — The same; left maxilliped, enlarged twenty-five diameters; e, external 

 lamella ; m, basal segment ; 1, 2, 3, segments of palpus. 



22. — The same ; ]ileopod of the second pair, from a male, enlarged twenty 

 diameters ; s, elongated stylet, articulated near the base of the inner 

 lamella. 

 (All the figures were drawn from nature by O. Harger.) 



I 



