PLATE 103. 



AULACANTHIDA. 



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1. Aulographis candelabrum, n. sp., . 



p, The dark phseodium surrounding the central capsule on its oral part ; a, a part of the sur- 

 rounding alveolate calymma, also surounding the central capsule ; s, the veil of tangen- 

 tial needles covering the surface of the alveolate calymma ; r, the big radial tubes, 

 seven of which are visible, with an elegant verticil of terminal branches ; /, the numer- 

 ous pseudopodia radiating between the branches. The central capsule exhibits the 

 following parts :— o, Astropyle ; u, parapylse ; e, outer membrane ; i t inner membrane ; 

 v, vacuoles ; n, nucleus ; Z, nucleoli. 



. 2-9. Aulographis pandora, n. sp., ....... 



Distal ends of various radial tubes of a single specimen, exhibiting the extraordinary varia- 

 bility of this species. 



10. Aulographis fur cula, n. sp., 



A two -branched tube. 



11. Aulographis furcula, n. sp., . . . 



A three-branched tube. 

 , 12, 13. Aulographis hovicornis, n. sp., 

 Two tubes with two branches. 



14. Aulographis hovicornis, n. sp., . . 



A tube with three branches. 



15. Aulographis triangulum, n. sp., ....... 



A single tube. 



16. Aulographis taumorpha, n. sp., . 



Two tubes, each with two branches. 



17. Aidographis triglochin, n. sp., 



A tube with three branches. 



18, 19. Aidographis hexancistra, n. sp., . . . .. 



Distal end of two tubes (one with four, the other with five terminal branches). 



20. Aulographis dentata, n. sp., ....... 



Distal end of a single tube. 



21. Aulographis ancorata, n. sp., ....... 



Two tubes, each with four recurved branches. 



22. Aulographis tetrancistra, n. sp., . . 



A single tube. 



23. Aulographis stellata, n. sp., 



a and b, Two rudimentary or incompletely developed tubes ; c, a well-developed tube of 

 the usual form. 



24. Aulographis asteriscus, n. sp., 



Terminal verticil of a single tube. 



25. Aulographis cruciata, n. sp., 



Distal end of a single tube. 



26. Aidographis pulvinata, n. sp., 



Distal end of a single tube. 



27. Aulographis serridata, n. sp., 



Distal end of a single tube. 



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