324^ A. E. Yerrill — Neio England Annelida. 



Plate VI. 



Figure 1. — Harmotho'e imbricata. Dorsal view, natural size. 



Figure \a. — The sume. Portion of a scale, enlarged twelve diameters. 



Figure \h. — The same. A small part of a scale, enlarged 190 diameters. 



Figure Ic. — The same. One of the parapodia bearing dorsal cirri, enlarged ten diame- 

 ters: a' upper, a" lower acicula ; dc dorsal cirrus; wc ventral cirrus ; <fo dorsal 

 setfe ; vs. vs', vs'" ventral setas. 



Figure Id — The same. Setae, enlarged 200 diameters: d, dorsal seta; r, (;', ventral 

 setfe, side views ; «", the same, front view. 



Figure la. — Lepidonotus squamatus. A scale, enlarged fourteen diameters. 



Figure 2h. — The same. Portion of a scale bearing the smaller tubercles, more en- 

 larged. 



Figure 3((. — Lepidonotus sublevis V. A scale, enlarged twelve diameters. 



Figure 3&. — The same. Portion of a scale, enlarged sixty diameters. 



Figure 3c. — The same. One of the parapodia, much enlarged. 



Figure 3c?. — The same. Setae, much enlarged: d, dorsal seta; ", y', ventral setae, side 

 and front views. 



Figure 4. — Lepidonotus squamatus ?. (Young), Head and anterior part of body, with 

 scales removed, much enlarged : h, cephalic lobe or head, with eyes ; a, median 

 antenna ; «', lateral antenna ; c, c', upper and lower tentacular cirri ; p, p, pjpi ; 

 dc, dorsal cirri; vc, ventral cirri; s, dorsal and s', ventral fascicles of setaa; e, e, 

 tubercles to which the scales (elytra) were attached. 



Figure ia. — The same. A scale, enlarged eighteen diameters. 



Figure lb. — The same. One of the parapodia, enlarged fifty-six diameters ; lettering 

 as in le. 



Figure 4c. — The same. Set;e, much enlarged; d, dorsal seta; v, ventral seta. 



Figure 5. — Polynoe (Eunoa) AcanellcB Verrill. Head and anterior part of body, en- 

 larged. 



Figure 5a. — The same. Part of a scale, enlarged sixty diameters. 



Figure 6. — Lcetmaionice annata V. Head and anterior part of body, enlarged four 

 diameters, with some of the anterior scales removed to show the head. Lettering 

 as in fig. 4: e", e"', e"", elytra. 



Figure 6a. — The same. Ventral parapodinni. showing (j"*) four of the peculiar setse, 

 enlarged ten diameters. 



Figure 66. — The same. Barbed seta3 of the dorsal fascile ; d, side view ; the same, 

 seen edgewise. 



Figure 7. — Sthenelais picta V. Sette of ventral fascicle, enlarged 200 diameters: a, 

 semi-whorled spinulose seta from upper [)art of ventral fascicle ; &, b', two of the 

 compound bidenlate setas with spinose shafts; e, e', stouter bidentate setie, with- 

 out spiuules. 

 The drawings are by J. H. Fmerton, mostly from preserved specimens. 



Plate VII. 



Figure 1. — Sthenelais Eniertoni V. Dorsal view of head, much enlarged. Specimen 



(figs. \-\s) from Narragansett Bay, station 770, 1880. From a living specimen. 

 Figure la. — The same. Ventral view of the head and anterior appendages. 

 Figure \b. — The same. Side view of head and anterior appendages. 

 Figure Ic. — Tlie same. Side view of middle region of body. 



