PLATE I. 



Fig. 1. — Rossella antarctica Carter, Specimen A. Nat. size. (Page 5.) 



Fig. 2. — Rossella antarctica, Specimen B. f nat. size. (Page 7.) 



Fig. 3. — Rossella antarctica, Specimen C, vertical section, | nat. size. (Page «.) 



Fig. 4. — Rossella antarctica. Specimen 0, vertical section showing the other half. -^ nat. size. 



