PLATE IX. 



Fig. I. Nicella carinata n. sp. Natural size. i a, part of branch X 5- 



Fig. 2. Nicella coralloides n. sp. Natural size. 2 a, part of branch X S. 



Fig. 3. Pliimigorgia hydroides n. sp. Natural size. 3 a, part of colony X 5- 



Fig. 4. Ellisella flava n. sp. Natural size. \a, part of branch X 5- 



