Kopoid. — New Species of Dinoflagellates. 



PLATE 10. 



Fig. 59. Oxytoxum gigas, sp. nov., ventral face. X 450. 



Fig. 60. Oxytoxum turbo, sp. nov., ventral face. X 935. 



Fig. 61. Oxytoxum curvicaudatum, sp. nov., sinistral face. X 442. From life. 



Fig. 62. Oxytoxum subulatum, sp. nov., dextral face. X 565. 



F}g. 63. Oxytoxum compressum, sp. nov., oblique view of sinistral face. X 442. 



From life. 

 Fig. 64. Oxytoxum cristatum, sp. nov., sinistral face. X 442. From life. 

 Fig. 65. Oxytoxum challengeroides, sp. nov., ventral view, reticulations shown 



only on midventral postcingular plate. X 935. 



