PLATE IX. 



Fig. I. Echinomuricea collaris n. sp. Natural size. la, part of branch X 5- 



Fig. 2. Echinomuricea spinifera n. sp. Natural size. 2a, part of branch x 5- 



Fig. 3. Tliesea placoderma n. sp. Natural size. 3«, part of branch x 5- 



Fig. 4. Thesea jiexilis n. sp. Natural size. \a, part of branch x 5- 



Fig. 5. Thesea sanguinea n. sp. Natural size. 5«, part of branch x 5- 



