TRIBE II. CARYOPHYLLACEA. 421 



The long filiform tentacles of this species, if correctly given by 

 Ellis, are quite unlike most of the Zoanthidae. The breadth of the 

 disk is but half the length of a tentacle, and the disk moreover is not 

 radiated; the polyp expanded is nearly three-fourths of an inch broad. 

 (See figure 26, p. 66.) 



Actinia sociata, Ellis, Phil. Trans., 57, t. Zoanthus Ellisii, Bosc. ii. 224. 



19, figs. 1,2. , Lamouroux, Exp. 89, pi. 1. figs. 



, Ellis and Solander, 5, tab. 1, figs. 1, 2. 



1, 2. Zodtitha Ellisii, Lamk., ii. 77, No. 1. 



Hydra sociata, Gmel. Syst. Nat., 3868. Zoanthus sociatus, Ehrenb., G. xi., sp. 1. 



2. ZOANTHA SOCIATA. ( 



Z. polypis 2" altis, subviolaceis disco semipotticari virescente ; tentacuhs 

 tenuibus, brevibus, luteis. 



Polyps 2 inches high, and subviolaceous, disks half an inch in diame- 

 ter, greenish ; tentacles slender and short, yellowish. 



Guadaloupe, West Indies. Lesueur. 



The tentacles in this species, according to Lesueur, are sixty in 

 number, and in two rows. 



Zoanlhits sociata,Lesueur,Jour. Acad. Nat. , Blainville, Man., 328. Lesueur sug- 



Sci. Philad., i. 176. gests that this may be the sociata of Ellis. 



3. ZOANTHA SOLANDRI. (Lesueur.) 



Z. polypis crassioribus, 2" altis, disco fusco-rubescente, tentaculis bre- 

 vibus. 



Polyps stouter than in the sociata, 2 inches high, disks reddish- 

 brown, tentacles short. 



West Indies, St. Thomas. Lesueur. 



The exterior colour is reddish-yellow; when the animal is con- 

 tracted the summit is marked with deep-blue angular spots and white 

 lines. Tentacles about sixty in number. 



106 



