I. Articulata.
a. Rhynchonellidæ.
b. Terebratulidæ.
II. Inarticulata.
a. Lingulidæ.
b. Craniadæ.
c. Discinidæ.
[129] Kowalevsky’s Memoir is unfortunately written in Russian. The account in the text is derived from an inspection of his figures, and from an abstract in Hoffmann and Schwalbe’s Jahresberichte for 1873.
[130] It should be stated that it is by no means clear from Kowalevsky’s figures that he agrees with Lacaze Duthiers as to the succession of the segments.
[131] Kowalevsky in his figures leaves the penultimate lobe unciliated.