420 ZOOPHYTES. 



short, in three series, the outer yellow, the intermediate umber, with 

 a tinge of green, and the inner deep and rich green. 



Plate 30, fig. 1, zoophytes, natural size; 1 a, same magnified. 



The Balabac Passage, north of Borneo. Exp. Exp. 



The fringe of tentacles margining the disk is very short. The 

 green colour of the disk belongs to the radiated lines, these being 

 separated by narrower lines of brown. A single one of these rays 

 has a yellowish-white colour, indicating some peculiar function in 

 the tentacle with which it communicates. 



GENUS ZOANTHA. 

 ZoanthidcB e stolonibus repentibus gemmatce. 



Zoanthidae budding from creeping shoots. 



The Zoanthse form long lines of polyps, rising from a creeping, root- 

 like shoot, which is attached to some support. 



This genus was instituted by Cuvier, in his Elements of Zoology, 

 but was first restricted to the Zoanthidse by Lamarck, who included 

 in it all the known species of the family. Lesueur and Lamouroux, 

 by introducing other genera, reduced it to its present limits. The 

 name is derived from uov, animal, and avdos, Jlorver. 



Arrangement of the Species. 



1. Z. Ellisii. 4. Z. dubia. 



2. Z. sociata. 5. Z. Bertholetii. 



3. Z. Solandri. 



1. ZOANTHA ELLISII. (Bosc.) 



Z. polypis elongatis (scepe 2") davatis, tentaculis filiformibus. 

 Polyps often 2 inches long, clavate, tentacles filiform. 

 West Indies. Ellis. 



