The Voyage of E.M.S." Challenger." ’ 
Hydroida , Part II, PI.XKV. 
AT.HoUickhiVi. 
"Weat.lTewmsn &. C° imp. 
I, l fl SERTULARIA L E I 0 C A R P A . 2 2 A 2. B SERTULARI A U N I L A T E R A L I S . 
3, 3 A SERTULARIA CLAUSA. 
