nvN NM>\ 71 



PLATE X. 



' - : 



1. C. aastralia. Special spine from eighth joint of Oviger. Principal row. x 100. 



I. 0. australis. Special spine from eighth joint of Oviger. Second row. x 100. 



8. 0. glacialis. Special ipine from eighth joint of Oviger. Much worn, x 265. 



4. C. giacialu. SeU from dorsal inrface of ninth joint of Oviger. x 2C5. 



6. C. frigida. Special spine from tenth joint of Oviger. Principal row. x 265. 



6. C. frigida. Special spine from tenth joint of Oviger. Second row. x 265. 



7. C. rogosa. Special spine from tenth joint of Oviger. Principal row. x 265. 

 Nymphon. 

 l> uticuUUe spinet from tenth joint of oviger. 



8. N. hiemalc. x 850. 



9. N. lanare. x 455. 

 10. N. frigidnm. x 645. 

 r'h*?tonymphon. 

 1 Vntk-ulate spines from oviger. 



11. C. villosnm, seventh joint, x 438. 



12. C. biarticnlatnm, tenth joint, x 680. 



18. C. mendiwom, tenth joint, x 410. 



14. 0. aostralc, tenth joint, x 480. 



15. C. aostrale var. austrinornm, tenth joinL X 512. 



Nttt, Th 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 cast* 

 have been reduced t > fit the platen. 



TOU lit. 



