PYCNOGONIDA. 71 



PLATE X. 



Colossendeis. 



Fig. 1. — 0. australis. Special spine from eightli joint of Oviger. Principal row. x 100. 



2. — C. australis. Special spine from eighth joint of Oviger. Second row. x 1 00. 



3. — 0. glacialis. Special spine from eighth joint of Oviger. Much worn, x 265. 



4. — C. glacialis. Seta from dorsal surface of ninth joint of Oviger. x 265. 



5. — 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. rugosa. Special spine from tenth joint of Oviger. Principal row. X 265. 

 Nymphon. 



Denticulate spines from tenth joint of oviger. 

 Fig. 8.—N. hiemale. x 350. 



9. — N. lanare. x 455. 

 10. — N. frigidum. x 645. 

 Chaetonymphon. 

 Denticulate spines from oviger. 

 Fig. 11. — C. villosum, seventh joint, x 438. 



12. — 0. biarticulatum, 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. 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. Ill, 



