REFERENCE TO PLATES. 



119 



Plate 9. 

 figure. page. 



1. Cryptoplax oculatus Q. & G. Challenger Rep., . . 55 

 2-5. Cryptoplax oculatus. Valves i, ii, iii and viii. Challen- 



gei- Rep., 55 



6. Cryptoplax burrowi E. A. Smith. Conch. Icon., , . 54 

 7-10. Cryptoplax burrowi. Valves i, ii, iii, and viii. E. A. 



Smith del., ........ 54 



11-14. Cryptoplax striatus Lam. Challenger Rep., . . 53 



15. Cryptoplax striatus Lam. Challenger Rep., . . 53 



Plate 10. 



1, 2 Chiton subassimilis Souv. Journ. de Conch., 

 3, 4 Chiton discolor Souv. Journ. de Conch., 

 5, 6. Chiton tuberculosus Souv. Journ. de Conch. 



7. Chiton platynierus Sowb. Beechey's Voy., 



8, 9. Chiton obscurellus Souv. Journ. de Conch., 

 10, 11. Tonicia insculpta Souv. Journ. de Conch., 

 12. Chiton glaucocinctus Fremb. Zool. Journ. 

 13-17. Ischuochiton cessaci Roch. Nouv. Arch. Mus., 

 18, 19. Chiton fimbriatus Sowb. Conch. 111., 



20. Chiton undulatus Sowb. Beechey's Voy., 



21, 22. Chiton concinnus Sowb. Conch. III., 

 23-26. Chietopleura pustulata Kr. Siidafrik. 



27, 28. 

 29, 30. 



Callochiton sanguineus Dh. 

 Chietopleura jaspidea Gld. 



Moll., 

 Moll. Reun., 

 U. S. Expl. Exped., 



. 99 

 . 89 

 . 99 

 . 115 

 . 99 

 . 89 

 . 109 

 . 81 

 . 110 

 . 115 

 . 79 

 . 73 

 . 67 

 . 70 



Plate 11. 



31. Cryptoplax larvffformis Burrow. Ross del., . . .56 



32. Cryptoplax larvieformis. Edge of foot, showing marginal 



row of longer spicules. Pilsbr}-, del., . . .56 



33. Cryptoplax larvieformis, One sq. mill, of upper surface. 



Pil:^bry del., 56 



34. Cryptoplax larvseformis. One of the sutural tufts. Pils- 



bry del., 56 



35. Cryptoplax larvseformis. Ross del., . . . .56 



36. Cryptoplax larvseformis. Valvesi,ii, iii, viii. Challenger 



Rep., 56 



37. Cry})toplax striatus Lam. Edge of foot, showing densely 



spiculose upper surface, and asperulate basal surface of 

 girdle. Pilsbry del., 53 



38. 39, Cryptoplax striatus Lam. Ross del., . . .53 

 40-43. Cryptoplax striatus. Valves i, ii, viii. Pilsbry del., 53 



Plate 12. 



44, 45, 47. Acanthochites exquisitus Pils. Pilsbry del., . 23 



46. Acanthochites exquisitus Pils. Ross del., . . .23 



