PLATE LXXXI. 



FIG. 



1. Pedicellina cernua, var. glabra, p. 565. 



2. — — , elongated form. 



3. , showing the tentacles folded in. 



4-6. Pedicellina gracilis, p. 570. 



7, H. LoxosoMA singulare, p. 573. 



9-11. LoxosoMA claviforme, p. 575. 



12. Fragment of the skin of Hermione, with individuals 

 of the last species in situ, nat. size. 



