354 EXPLANATION OF THE PLATES. 



removed. 3. The proboscis laid open. 4. Section of a segment, 

 showing the squamous feet ; the scales having been raised and 

 reverted. 5. A scale. 6. One of the cirrigerous feet. 7. A 

 bristle of the dorsal brush. 8. The upper bristle of the ventral 

 brush. 9. One of its under bristles : — all magnified. 



Figs. a-e. Bristles of the feet of Aphrodita hystrix. a. A bristle 

 from the ventral branch of foot. h. A squamigerous foot, 

 showing the two bundles of bristles with which it is armed. 

 c. A bristle of the innermost or dorsal brush belonging to the 

 dorsal branch of foot. d. A barbed bristle from the outermost 

 brush belonging to the dorsal branch of the Same foot. e. The 

 same bristle, with its sheath, within which the barb can be 

 enclosed : — all magnified. 



Plate XII. 



Figs. 1-3. Entohdella hipjpoglossi. 1. Nat. size, dorsal aspect. 

 2. Ditto, ventral aspect. 3. Animal magnified. 



Plate XIII. ' 



Figs. 1-5. Pholoe inornata. 1. Nat. size. 2. Anterior portion of the 

 body magnified. 3. Proboscis laid open. 4. Two of the dorsal 

 scales. 5. A foot : — magnified. 



Figs. 6-15. Sigalion boa (details, magnified). 6. Proboscis removed 

 and laid open. 7. Head and anterior segments seen from above. 

 8. Head on the ventral aspect, to show the mouth and origin of 

 the palpi. 9. A scale from near the middle of the body. 



10. Side view of a foot. 11. A bristle from the dorsal ramus 

 of the foot, unjointed, but finely serrulated on one side. 

 12. Another bristle from the same ramus, slenderer and quite 

 smooth. 13. A bristle from the indentation of the foot be- 

 tween the dorsal and ventral rami. 14. A bristle of the ven- 

 tral ramus. 15. Another bristle of the same, situated under the 

 former, and consequently next the ground. 



Plate XIV. 



Yigs. 1-6. Sphijer odor mn per ipatus. 1. Nat. size. 2. Animal highly 

 magnified. 3. Anterior portion of the body from below, to 

 show the position of the mouth and proboscis. 4. A few seg- 

 ments from near the middle of the body. 5. A single foot and 

 branchiae, to show their structure. 6. Three of the branchial 

 globes separate from the feet : — all magnified. 



Figs. 7-14. Spinther oniscoides. 7. Nat. size. 8. The dorsal aspect 

 viewed through a common magnifier. 9. A view of the ventral 

 surface. 10. Two feet detached and viewed from the back. 



11. A foot as seen from below. 12-14. Bristles : — all magnified. 



