47 



The individual calyces are verruciform or dome-shaped when the polyps are retracted, 

 and short cylinders when they are expanded, averagino- about .8 mm. in height and 1.5 mm. 

 in diameter. The walls arc filled with warty spindles most of which tend to a horizontal position, 

 a few near the margin being vertical. There are no decided points around the margin, which 

 is capable of being drawn over the caly.x mouth so as to entirely conceal the polyp in retraction. 

 The operculum is reduced to an exceedingly delicate tracery of the ordinary pattern, the spindles 

 being mere transparent threads without verruca;, there being the ordinary arrangement of three 

 spindles to form an acute-angled triangle on each tentacle. The collaret is composed of a 

 single irregular circlet of attenuated spindles. 



Spicules. These are all warty spindles of about the same size on calyces and ccenenchyma. 

 Rarely branched forms are seen, but these are so few as not to be a characteristic feature. 



Color. The small portion of the type that is not denuded is almost white (in alcohol) 

 while the axis is deep brown, lightening distally. The cysts occupied by the barnacles are 

 formed of an excessive growth of the material which forms the axis cylinder. 



General distribution. The type locality appears to be unknown. 



Bebryce Philippi, (modified). 



Bebryce Philippi. Archiv, für Naturgesch. Bd. I, 1842, p. 35. 

 Bebryce Kölliker. Icones Histologicae, II, 1887, p. 137. 



Bebryce Koch. Fauna und Flora des Golfes von Neapel, XV, 1887, p. 54. 

 Bebryce Wright and Studer. Challenger Reports, the Alcyonaria, 1S89, p. LV. 

 Bebryce Hickson. Alcyonaria of the Maldives, III, 1905, p. 815. 



Bebryce Thomson and Henderson. Ceylon Pearl Oyster Fisheries Reports; Supplementary 

 Reports, N" XX, 1905, p. 294. 



The original description of this genus is inaccessible to the writer. Kölliker, however, 

 has examined and rediscribed the type with his usual discrimination, and the following is a 

 somewhat free and condensed translation of his description, which will be regarded as the 

 definition used in the present work. 



Ccenenchyma very thin, the outer layer composed of characteristic spicules which are 

 scales with more or less toothed or scalloped margins, and with a longer or shorter vertical 

 process arising from their centres. 



Often these characteristic spicules greatly resemble a collar-button with beautifully scalloped 

 edges. They are plainly imbricated when in position, and usually show a darker central, and 

 a lighter marginal, area when viewed in situ with reflected light. 



The type of this genus is Bebryce mollis Philippi. Other known species are Bebryce 

 /«V/^j-(?«/ Thomson and Henderson, B. indica Thomson, B. p/iilip/>iSiwd&r, B. StudcriV\!\\\t\&gge, 

 B. sp. ? Hickson, and the two new species in the Siboga collection. 



I. Bebryce Jiicksoni Thomson and Henderson. 



Bebryce hicksoni Thomson and Henderson. Ceylon Pearl Oyster Fisheries. Supplementary 

 Reports, N° XX, 1905, p. 294. 



