16 
THE VOYAGE OF H.M.S. CHALLENGER. 
3. Emma, Gray. 
Emma crystallina, Gray. 
4. Scrupocellaria, van Beneden. 
(1) Scrupocellaria macandrei, Busk (PI. XI. fig. 4). 
(2) Scrupocellaria ciliata (Audouin) (PL XI. fig. 5). 
(3) Scrupocellaria ornithorhynchus (Wyv. Thoms.) (PI. XI. fig. 6). 
(4) Scrupocellaria pilosa (Audouin) (PI. XI. fig. 7). 
(5) Scrupocellaria securifera, n. sp. (Pl. XI. fig. 2). 
5. Canda, Lamouroux. 
(1) Canda arachnoides, Lamouroux. 
(2) Canda simplex, n. sp. ? (PL XIV. fig. 8). 
6. Nellia, Busk. 
(1) Nellia ocidata, Busk. 
(2) Nellia simplex, Busk (Pl. V. fig. 6). 
7. Caberea, Lamouroux. 
§ a. fornicates. 
(1) Caberea rostrata, n. sp. (Pl. XXXII. fig. 4). 
(2) Caberea crassimarginata, n. sp. (Pl. XI. fig. l). 
(3) Caberea darwinii, Busk (PL XXXII. fig. 6). 
(4) Caberea rudis, Busk. 
(5) Caberea minima, n. sp. (Pl. XXXII. fig. 5). 
§ (3. apertce. 
(6) Caberealata, Busk (PL XI. fig. 3). 
1. Cellularia, Pallas (pars). 
Bugula (pars), Gray. 
Character. — Zoarium hi- or tri-serial, with more than four cells in each internode ; 
with or without a sessile avicularium behind the upper and outer angle ; with or without 
a pedunculate fornix. 
§ a. apertce. 
(1) Cellidaria crateriformis, n. sp. (Pi. III. fig. 1). 
Character. — Zoarium 2 to 3 inches high, lax, flaccid, straggling, branches long, 
very irregular. Zocecia elongated, narrow (O'^Od x *005). Aperture oval, border wide, 
