.i poorly markril s|.ir.il. There are no evident median bare spac< and the calyces 



are much more distant than in other ol this genus in the collection. 1 h( more 



sparselj scattered over the front and back than on the sides of the branches, 



The iiuliviilii.il ca are low, dome-shaped verrucae with their openings directed out- 



ward, not inward nor upward, as in Juncella. A typica] one measures 1.5 mm. in diameter 



at the base and about 7 mm. in height. Ih<- apertures are star-like owing to the lobed mar- 



gins below which the tentacle bases form a star-shaped figure, the tentacles themselves being 



infolded. 1 in- polyp bodies are short and stout, and their upper portions bear numerous small 



spicules tra: j disposed. The tentacl< crusted with spicules so as to form a 



s .,n rculum in retraction. A cross section ol one of the larger branches shows a 



itructure »>!" the axis than in Juncella^ but there is still a ver) distinct appearance of 



lamination. Hie water-vascular canals are very regularly disposed around the axis and a short 



of it. In a longitudinal section of a part of a branch round and regular 



. 1 seen in the walls of the primary canals, and these communicate with the bod) 



the polyps. 



Spicules. 1'hese are quite characteristic of the genus Verrucella. The most common 

 forms are small, densely tuberculate doublé heads. the heads being separated by a narrow 

 girdle. This girdle is often obliterated, forming oval densely tuberculate spindles. True tuber- 

 culate clubs are also found, as well as regular spindles. All possible gradations between the 

 s, clubs and spindles are found. 



1 lor. The colony is a lively coral red throughout. 



Genus Ctenocella Valenciennes. 



Ctenocella Valenciennes. Comptes rendus, XI. I, [855, p. 14. 



nocella Milne Edwards et Haime. Hist. Nat. des Coralliaires, 1857. p. 185. 

 Ctenocella Ridley. Zoological Collections of H.M. S. Alert, 1884, p. 348. 

 Ctenocella Studer. Versuch eines Systemes der Alcyonaria, 1887, p. 



nocella Wright and Studer. Challenger Reports, the Alcyonaria, [889, p. LXVI. 



The original description of the genus Ctenocella is as follows 



- !,<• sclérobase s'allongeanl en baguettes droites et pectinées d'un seul cóté de la tige 

 principale". 



Milne Edwards and Haime (1857) define the genus as follows: 



*Poly| tllongeant en baguettes droites et pectinées d'un seul cóté". 



gives an adequate definition of the genus which is freely translated 



"Colony peculiarly pectinate, the twigs springing as unbranched upright switches trom 



the upper sides of the branches. Calyces not prominent, on two sides ol the branchlets. An 



ent median furrow is present (on the branches). The spicules are warty doublé clubs , 



ol thi calyces being, according to Ridley, distinct from those of the coenenchyma, being 



Bture adopted in ihe ure&eol wo 



