PYCXOGONIUA. 

 PLATE X. 



Special spine from eighth joint of Oviger. 

 Special spine from eighth joint of Oviger. 

 Special spine from eighth joint of Oviger. 



71 



Seta from dorsal surface of ninth joint of Oviger. x 265. 

 Special spine from tenth joint of Oviger. Principal row. X 2G5. 

 Special spine from tenth joint of Oviger. 

 Special spine from tenth joint of Oviger. 



Colossendeis. 



FIG. 1. C. australis. 



2. C. australis. 



3. C. glacial is. 



4. C. glacialis. 



5. 0. frigida. 



6. C. frigida. 



7. C. rngnsa. 

 Nymphon. 



Denticulate spines from tenth joint of oviger. 

 FIG. 8. N. hiemale. x 350. 



9. N. lanare. X 455. 

 10. N. frigidum. x 045. 

 Chfctonymphon. 

 Denticulate spines from oviger. 

 FIG. 11. C. villosum, seventh joint, x 438. 



12. C. biarticulattirn, tenth joint, x 630. 



13. C. mendosum, tenth joint, x 410. 



14. C. australe, tenth joint, x 480. 



15. C. australe var. austrinorum, tenth joint. 



Principal row. x 100. 

 Second row. x 100. 

 Much worn, x 265. 



Second row. X 265. 

 Principal row. X 265. 



X 512. 



Note. The magnifications of Messrs. West, Newman & Co.'s drawings are approximate only. The 

 drawings were made on squared paper, with the assistance of an eyepiece micrometer, and in many cases 

 have been reduced to fit the plates. 



VOL. IIJ. 



