chap, iv ] THE CRUISES OF THE PORCUPINE.' 169 



Pive species of Amphihelia are cited by Professor 

 Martin Duncan from the ' Porcupine ' expedition :— 

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

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



Pig. M.-Lophoheliaprolifera, Paixas (sp.). Three-fourths the natural size. (No. 26.) 



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, Eiirenbeug (Pig. 31). 



