ALCYONOID POLYPS. 91 
the coast of Marseilles. The rose-colored is the most highly 
valued, because the rarest. 
Another species of Corallium was obtained by the author 
at the Sandwich Islands (Atlas of Zodphytes, plate 60) ; but, 
while probably from the seas of that region, its precise locality 
is not known. 
3. Pennatula tribe, or Pennarunacea. These are com- 

COPHOBELEMNON CLAVATUM, V., AND VERETILLUM STIMPSONI, V. 
pound Alcyonoids, that, instead of being attached to rocks or 
some firm support, have the base or lower extremity free from 
polyps and buried in the sand or mud of the sea-bottom, or 
else live a floating life in the ocean. Their forms are very va- 
rious. 
In the Veretillum family (Veretillide) they are stout 
and short club-shaped. One of the species from Hong Kong, 
is shown in the figure on the left, with its polyps fully ex- 
