PLATE XVIII. 



Laotika cambeia (p. 32). 



Figs. 1, la. Exumbrella view of a 5-lobed specimen, the lower side of which (fig. la) shows 



narrow subuinbrella lobes that pass beneath 5 broad lobes that are considered to be 



the oral arms. 

 Fig. 2. Subumbrella view of a small individual showing the same essential characteristics as 



fig. la. 

 Fig. 3. Exumbrella surface of a rotund specimen. 



Fig. 3a. Side view of fig. 3, showing the interlocking of the exumbrella lobes and the oral arms. 

 Fig. 3b. Opposite side from fig. 3a, showing the oral arms and exumbrella lobes touching, but not 



interlocking. 

 Fig. 3c. Lower surface of fig. 3, showing the oral arms more developed than in figs, la and 2. 

 Figs. 4, 4a, 4b. Upper, side, and lower views of a rotund specimen, illustrating the same features as 



figs. 3, 3a, 3b, and 3c. 

 Figs. 5, 5a, 5b. Views of a somewhat compressed and distorted specimen in which the exumbrella 



and subumbrella lobes, interradial lobes, and oral arms are more or less distorted and 



misplaced. 

 Figs. 6, 6a. Exumbrella and subumbrella views of a specimen in which the central oral lobes 



are more numerous than in figs, la and 2. 



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