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Annals of the Transvaal Museum 
sometimes divided into two unequal portions ; in one specimen it is irregularly 
cut up by small secondary lobes. In two specimens the ventral lobe is nearly 
as long as the first lateral lobe, in the other it is much shorter. It sends a long 
process backwards on each side of the broad, truncated, siphonal saddle. The 
first lateral lobe is very long and of moderate breadth. In one specimen it is 
rather narrow. This lobe is not only bifid, but it terminates with two very 
long, narrow, subequal, backward processes. The second lateral lobe is much 
shorter than the first and it is also shorter than the external lobe; it is narrow 
and terminates in a point. In one specimen it is situated on the umbilical row 
of tubercles; in another specimen it lies completely external to this row and 
in the third specimen it lies internal to the row. The second lateral saddle lies 
completely on the umbilical surface in two specimens ; in the third specimen it 
Text-fig. 19. Movtonicevas Soutoni. Lobe-line of plesiotype from dorsal to ventral 
line. Specimen with very narrow second lateral saddle. Radius about 12 cm. 
Nat. size. 
Text-fig. 20. Movtonicevas Soutoni. Dorsal 
lobe, dorsal saddle and second lateral 
saddle of the same specimen as fig. 19. 
Radius about 8 cm. Nat. size. 
lies partly on the flanks. It is shorter than the internal side of the first lateral 
saddle. Its breadth varies in the three specimens. In the specimen in which 
it passes on to the flanks its inner side lies internal to the umbilical suture and 
its breadth as visible is greater than that of the first lateral saddle. In another 
specimen the breadth of its visible portion equals that of the first lateral saddle, 
and in the third specimen, which shows the dorsal surface of its last whorl, 
the second lateral saddle is much narrower than the first. The broad second 
lateral saddles are divided into two unequal parts by a short secondary lobe. 
The external portion of the saddle is broader than the internal portion. The 
first dorsal lobe is moderately long and very narrow; it is much shorter than 
the second lateral lobe. The dorsal saddle is very narrow; it is deeply cut into 
by two secondary lobes of the antisiphonal lobe, which very nearly meet two 
secondary lobes of the first dorsal lobe. In its undamaged state it reaches 
