172 Notes from the Galtij Marine Lahoratory. 



slender branchiae project from the dorsal edge of more than 

 twenty of the anterior feet, and traces ap])eared in some 

 considerably behind these. The anterior segments are 

 closely arranged, but posteriorly tliey are a little less so, and 

 the number is probably from seventy to one hundred, though 

 no specimen is complete. 



Some had well-developed ova in July. 



The structure of the feet throughout is the same, viz., a 

 dorsal and a ventral setigerous process, each having a tuft of 

 translucent pale yellow capillary bristles (PI. VII. fig. 12 a), 

 the tips being slightly flattened at the somewhat narrow 

 base, and tapering to delicate hair-like extremities. The 

 dorsal are the longer, and they increase in length toward 

 the middle of the body, and remain of considerable length 

 posteriorly, where the distinction between the more slender 

 and longer dorsal and the shorter and proportionally broader 

 ventral is maintained. A curious series of coiled tubes (?) 

 occurs posteriorly. 



EXPLANATION OF THE PLATES. 

 Plate V. 



Fig. 1. View of Nevaya lohiteavesi from the dovsiim. The proboscis pro- 

 jects posteriorly from the ruptured end. Enlarged. 



Fig. 1 a. Head and anterior region of the foregoing, still more enlarged. 



Fig. 1 b. Strong hooked bristle of lirst foot. X Zeiss oc. 4, obi. A. 



Fig. 1 c. Powerful hook of the second foot. X Zeiss oc. 4, obj. A-f 1 in, 

 draw-tube. 



Fig. 1 d. One of the first dorsal bristles, x Zeiss oc. 4, obj. D. ■ 



Fig. 1 e. Dorsal bristle of the second foot. X Zeiss oc. 4, obj. D. 



Fig. If. Bristle with curved and serrated tip from the ventral division 

 of the fourth foot. X Zeiss oc. 4, obj. D. 



Fig. \g. Stouter serrated bristle from the same region. X as above. 



Fig. 1 h. Posterior dorsal bristle. X as before. 



Fig. 2. Bristle of Cirratulus tesselhttus. X Zeiss oc. 4, obj. D. 



Fig. 3 a. Anterior hook of the foregoing. X Zeiss oc. 4, obj. D + 1 in. 

 draw-tube. 



Plate VI. 



Fig, 3. Simple anterior bristle of Heterocirrus gravieii, with minutely 

 .serrated anterior edge. X Zeiss oc. 4, obj. D-f-full draw- 

 tube. 



Fig. 4. Bristle of Cho'tozcme A, showing entire outline, x Zeiss oc. 2, 

 obj. D reduced. 



Fig. 4 a. Tip of one of the foregoing of less breadth. X Zeiss oc. 4, 

 obj. D, full draw-tube. 



Fig. 5. Head and anterior region of Chaf ozone carpenteri. Enlarged. 



Fig. 5 a. Bristle of the first foot of the foregoing. X Zeiss oc. 2, 

 obj. D, full draw-tube. 



Fig. 5 h. Tenth foot (dorsal division) of Chdtozone carpenteri. En- 

 larged. 



