60 Bulletin, Vanderbilt Marine Museum, Vol. IV 



as a field note from living specimens, or from preserved laboratory 

 material. 



Technical description: Kukenthal (1913) gives the best descrip- 

 tion of this species. 



The (t Ara" specimens consist of eleven separate colonies, all of 

 which are somewhat broken by the dredge. 



The largest one is 165 mm. long with about 83 clusters of zooids 

 on each side of the rachis. Each cluster occupies about 2 mm. of 

 height on the rachis. The terminal bulb is about 15 mm. long, very 

 little dilated. There are about nine long, acuminate spines support- 

 ing each cluster of polyps, with two or three shorter spinules filling 

 the space between each pair of spines. There are five to eight polyps 

 to each cluster, each with numerous slender tentacles. Towards the 

 base of the axis the zooids are smaller while distally they are much 

 larger. 



References: Pavonaria calif arnica Moroff, Zool. Jahrb. Abteil. 



Syst, vol. 17, p. 393, 1903.— Kukenthal, W., ibid, vol. 35, p. 249, 



taf. 8, figs. 6 u. 7, 1913. — Hickson, Siboga Exped. Mon. 14, 



p. 136, 1916. 

 Balticina pacifica Nutting, Proc. U. S. Nat. Mus., vol. 35, p. 704, 



pi. 87, figs. 1 and 2, 1909 ; ibid, vol. 43, p. 39, pi. 6, fig. 4, 1912. 

 Balticina calif ornica Nutting, op. cit., p. 40, 1912. 



Order : ZOANTHARIA. 



Family: ZOANTHIDAE. 



Subfamily : Brachycneminae. 



Genus: ZOANTHUS Lamarck. 

 Zoanthus pulchellus (Duchassaing and Michelotti). 



Plate 21. 



Type: Collected in the "West Indies and deposited in the Turin 

 Museum. 



Distribution: Found throughout the West Indian region in shal- 

 low water. 



Material examined: Four separate clusters dredged in Limon 

 Bay, Panama, January 21, 1928, by the "Ara." 



Color: Column olive-green, sometimes bluish to pure turquoise; 

 disk pale ochre-yellow with white flecks, sometimes green with paler 

 radial lines. 



