EXPLANATION OF THE PLATES. 353 



Plate VII. 



Lcpidonotus pellucidus. 



Fig. 1. Animal magnified. 2. Head. 3. One of the jaws. 4. One 

 of the scales. 5-9. Various bristles of the feet. 10. A peculiar 

 bristle, some of which are usually met with in the dorsal bimdle 

 of setsD : — all magnified. 



Plate VIII. 



Fig. 1. Lepidonotus sqiuimatus, nat. size. a. The jaws sUghtly 

 enlarged, h. A scale, c. A spine, d. A bristle from the 

 ventral branch of the foot: — all magnified (the latter not 

 correct). 



Fig. 2. Lepidonotus cirratits, nat. size. a. The head : ' antennae, 

 " palpi, '" tentacular cirri, c. A scale, d. The proboscis laid 

 open. e. A foot with a tentacular cirrus. /. A foot without 

 the tentacular ciiTus : — all somewhat magnified. 



Figs. 3-9. Lepidonotus hnpar. 3. Nat. size. 4. The head unco- 

 vered and magnified. 5, 5*, 6. Scales. 7, 8. Two views of 

 two feet : h, h, the tentacular cirrus. 9. Three bristles : — all 

 magnified. 



Plate IX. 

 Aphrodita aculeata. 



Fig. 1. Nat. size. 2. The head uncovered. 3. The head detached 

 and somewhat magnified. 4. Under view of the anterior por- 

 tion of the body. 5. The orifice of the proboscis. 6. The pro- 

 boscis laid open by a longitudinal section, enlarged. 7. A few 

 of the penicillate filaments magnified. 8, 9. Two views of the 

 feet. 10. Various bristles. 11. The spine : — both magnified. 



Plate X. 

 Aphrodita borecdis. 



Fig. 1. Nat. size, dorsal aspect. 2. Ventral aspect. 3. The an- 

 terior part magnified, seen from above 4. The same from below. 

 5. The proboscis laid open. 6. An outline of a foot. 7. The 

 ventral branch of a foot. 8. Two spines. 9. Bristles of the 

 superior fascicle. 10. A filiform bristle. 11. A bristle from 

 the ventral branch. 12. Bristles from the inferior fascicle of 

 the dorsal branch. 13. A portion of the skin of the belly : — all 

 magnified. 



Plate XI. 



Figs. 1-9. Pohjnoe scolopendrina. 1. Nat. size. 2. The head with 

 its appendages highly magnified ; the fi'ont scales have been 



2 A 2 



