Cretaceous Species o/'Podoseris, Dune. .31 



between the ridges of synapticulce. Epitheca exists or not 

 and is delicate and granular. 



Breadth from 5-12 millim., height from 2-8 raillim. 



Podoseris duhia^ sp. nov. (PL V. figs. 12 and 13.) 



The coraUum is small, attached, cylindrical, nearly as high 

 as broad, with a slightly convex calice and a small central 

 fossula. Septa numerous, subequal, mostly long, stout, and 

 slightly wavy, often straight, passing far inwards, some 

 uniting with others, and these reach the edge of the fossula, 

 arched at the free edge, carrying a single row of large distinct 

 granules ; a few rudimentary septa. About sixty-four large 

 septa, of Avhich one half reach the fossulaand form tliecolumella, 

 with probably the addition of some dissepimental structure, 

 the top of the columella being the base of the fossula. Inter- 

 septal spaces well developed, but a slender horizontal growth 

 is often seen upon the sides of the septa. Costee more nume- 

 rous than the septa, unequal in some parts, very straight 

 and regular and well separated, alternately broad and narrow; 

 in other parts very irregular, wavy, dividing and uniting, or 

 straight, ditfering much in size. Synapticulai few and 

 deeply seated in the calice, probably few between the costas, 

 but in definite transverse lines and stout. Epitheca in bands 

 in places, but the intercostal spaces are visible elsewhere ; 

 there is an indefinite and small granulation upon the costal. 



Height 8 millim., breadth of calice 9 miiiim. 



Loc. Ked Chalk. 



Young Forms o/Podoseridce. 

 1. (PL V. fig. 10.) 



Part of a small, simple, very low corallum, expanded, 

 and about 2 millim. broad from the extremity of the base to 

 the inner ends of the septa. The discoid coral slopes up very 

 slightly from the outer edge of the costffi at the base to their 

 septal end, which is raised. The septa are sunken below the 

 calicular margin, large and small, long and short, irregular 

 in thickness, radiating from a circle of synapticulaj, which 

 unites the inner ends of the larger septa and surrounds a 

 wide axial space ; the smaller septa may unite with the 

 larger ; interseptal spaces large, shallow. Two, or in places 

 three, concentric lines of synapticulai and some small septa 

 end in the circle nearest the costaj. Costee larger than the 

 septa ; close, unequal, slanting synapticulaj seen. The wall 



