REPORT ON THE OPHIUROIDEA. 357 



PLATE XXXIX. 



Fig. 1. Ophiolipus agassizii, Lym., f. Exp. U. S. Str. " Bkke." 



,, 2. „ „ T °. Outer face of an arm bone. 



,, 3. „ ,, if. Inner face of an arm bone. 



,, 4. Ophiopyren longispinus, lym., ^ (congispinus, by error in the plate). 



,, 5. ,, „ 2 T 4 . Outer face of an arm bone. 



,, 6. ,, „ 2 X 4 . Inner face of an arm bone. 



,, 7. Ophioconis miliaria, Lym., 1 -^. 



2 r °. Outer face of an arm bone. 



j> 



,, 9. ,, ,, 2 X °. Inner face of an arm bone. 



,, 10. Ophiomusium serratum, Lym., T °. 



,, 11. ,, validum, Ljn., Jj . Outer face of an arm bone. By error serra- 

 tum in plate. 



,, 12. ,, „ T °. Inner face of an arm bone. 



,, 13. ,, ,, x ^>. Profile view of an arm bone. 



,, 14. Ophiomastus secimdus, Lym., 3 T 8 . 



,, 15. Ophioehaita mixta, Lym., ^p. 



,, 16. ,, ,, ij 2 . Outer face of an arm bone. 



,,17. ,, ,, T 2 . Inner face of an arm bone. 



PLATE XL. 



Fig. 1. Ophiojysila riisei, Ltk., 1 ^. 



2. ,, ,, 2 T °. Outer face of an arm bone. 



3. ,, ,, 2 r °. Inner face of an arm bone. 



4. Ophiopliragmus wurdemani, Lvm., y 2 . 



5. ,, ,, 2 X *. Outer face of an arm bone. 



6. ,, ,, 2 X *. Inner face of an arm bone. 



7. ,, ,, T 2 . A wing of a month frame showing the 



peculiar ridges on the interbrachial 

 side for the attachment of the outer 

 inter-mouth frame muscles. 



Outer face of an arm bone. 



Inner face of an arm bone. 



Disk of a very small specimen from above to 

 illustrate the first appearance of radial 

 shields (I) just outside the brachial primary 

 plates ((/). 



(ZOOL. CHALL. EXP. PART XIV. 1882.) O 46 



