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PLATE VIII. 



Tig. 1. — Craiiiella sagitta (Lendenfeld) var. microsigma, n. var., f nat. size, p. 1. 



Fig. 2. — Surface at junction of poral and non-poral or oscular zones ( X 2). 



Fig. 3.— Section showing poral areas and sub-dermal spaces ( X 6). 



Fig. 4. — Eurypylous flagellated chambers opening into terminal exhalant canal ( X 425). 



Fig. 5. — Anatriaene (x 50). 5a, Cladome of same (x 160). 



Fig. 6. — Cladome of anatriaene with straighter cladi than 5a (x 160). 



Fig. 7. — Anatriaene with short, thick cladi (x 50). Cladome of same (x 160). 



Fig. 8. — Protriaene (x 50), 8a, cladome of same (x 160). 



Fig. 9. — Cladome of protriaene with equal cladi (x 160). 



Fig. 10. — Large oxea (x 50). 



Fig. 11. — Trichodal protriaene (x 160). 



Fig. 12.— Sigmata (x 700) ; 12a, the same (x 1400). 



Fig. 13. — Cortical oxea (x 50). 



Fig. 14. — Graniella sagitta var. pachyrrhahdus, n. var. Style (x 50). 



Fig. 15. — Strongyle ( x 50). 



