PLATE 111. 



Fig. 



Fig. 



Fig. 

 Fig. 

 Figs 

 Fig. 



AULOSPH^RIDA. 



1. Aulonia hexagonia, n. sp., ..... 



The complete spherical shell. 



2. Aularia ternaria, n. sp., . 



A group of six triangular meshes, with seven nodal points of radial tubes. 

 Behind the central capsule, with its double membrane (e, outer ; 

 i, inner) and radiate operculum (o) ; u, the two outer parapylse ; 

 v, vacuoles in the protoplasm. The ellipsoidal nucleus (n) contains 

 numerous nucleoli (I). 



3. Aulastrum triceros, n. sp., . 

 The complete shell. 



3a. Aulastrum triceros, n. sp., . 

 A single radial tube. 



, 4a, 46, 4c. Aulastrum dendroceros, n. sp., 



Three single radial spines (taken from three different specimens). 



5a. Aulophacus lenticularis, n. sp., 

 A single radial spine. 



Fig. 5b. Aulophacus amphidiscus, n. sp., . 

 A single radial spine. 



Fig. 6. Aulatr actus fusiformis, n. sp., 



The complete shell, five times enlarged. 



Fig. 6a. Aulatr actus fusiformis, n. sp., 

 Apical part of the shell. 



Fig. 6b. Aulatr actus fusiformis, n. sp., 

 A single radial tube. 



Fig. 7. Aulatractus diploconus, n. sp., .... 



Apical part of the shell. 



Fig. 7a. Aulatractus diploconus, n. sp., 



A single radial tube. 



Fig. 8. Auloplegma perplexum, n. sp., 



Half the shell. 



Fig. 8a. Auloplegma perplexum, n. sp., . 

 A single radial tube. 



Fig. 9. Auloplegma spongiosum, n. sp., 

 A single radial tube. 



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