CHAP. IV ] 



THE C&UISES. OF THE 'IOBCUFINE: 



169 



Five species of. Amphihelia are cited by Professor 

 Martin Duncan from the ' Porcupine ' expedition : — 

 A. profunda, Poitiitales ; A. oculata, L. sp. ; A. mio- 

 cenica, Seguenza ; A. atlantica, n. sp. ; and A. ornata. 



Pig. 30. — Lophohelia prolifera, Pallas (sp.). Three-fourths the natural size. (No. 20.) 



n. sp. ; and on one or two occasions, chiefly on the 

 verge of the cold area, the hempen tangles involved 

 some elegant fragments of the stony coral Allopora 

 oculina, Ehkenberg (Pig. 31). 



