PLATE X. 



Fig. I. Gorgonella delicatula n. sp. Group of four spicules, a, b, c and d. X 330. 



Fig. 2. Gorgonella rigida n. sp. Group of four spicules, a, b, c and d. X 330. 



Fig. 3. Verrucella stellata n. sp. Group of five spicules, a, b, c, d and e. X 330. 



Fig. 4. Juncella sangumea n. sp. Group of four spicules, a, b, c and d. X 330. 



Fig. 5. Scirpearella regia n. sp. Group of four spicules, a, b, c and d. X 330. 



Fig. 6. Scirpearella hemispherica n. sp. Group of three spicules, a, b and c. >; 330. 



