DESCRIPTION OF THE FOSSILS. 
201 
C. dentifera. Ph. PI. I. fig. 5S, 60. Bolland. 
Incrusting ; apertures of the cells with spicular edges. 
The following species probably do not belong to the genus : but 
I know not where better to place them. 
C. parasitica. Ph. PI. I. fig. 61, 62. Bolland. 
Incrusting ; cells large, open, irregularly perforated. 
C. tenuisepta. Ph. PI. II. fig. 30. Bolland; Mendip. 
Inversely conical, (proliferous) ; cells unequal, deep, rounded within, with indistinct 
radiating striae ; walls perforated toward the margins. It closely resembles cyath. 
quadrigeminum. Goldfuss xviii. 6, (Org. Rem. v. 9.) 
C. megastomaj Ph. PI. II. fig. 2, 9- Bolland. 
Incrusting ; expanded ; cells excavated, rounded within, and striated from the 
centre ; with many lateral perforations near the edges. 
Syringopora — I have not seen any specimens except from the 
lower scar limestone series. 
S. geniculata. Ph. PI. II. fig. 1. Ash fell ; Mendip. 
Radiating, often flexuous, branching, round tubes, united by very numerous small 
transverse subverticillate tubules. (Park. Org. Rem. Vol. ii. PI. 1, figures this. The 
transverse ridges vary. Fleming refers to this figure as tub. catenata of Martin, 
which is a different species.) 
S. ramulosa. Goldfuss. Ph. PI. II. fig. 2. Bolland ; Kirby Lonsdale ; 
Ash fell ; Mendip. (Olne, Goldfuss.) 
Parallel or flexuous tubes, irregularly united by the tubuli. (Org. Rem. t. 3, f. 1.) 
S. reticulata. Goldfuss, t. 25, fig. 8 ; Mart. t. 42. Ashford : (Olne, 
Goldfuss.) 
Small parallel tubes, connected by tubuli, alternating at regular distances. 
S. laxa. Phil, not figured. Ash fell ; Derbyshire. 
Very loosely branched, variously coalescing with few or no connecting tubuli. 
Cyathophyllum. — This beautiful genus is almost confined to the 
lower scar limestone series. 
C. regium. Ph. PI. II. fig. 25, 26. Lofthouse in Nidderdale ; also 
in Pembrokeshire ; the W rekin ? Derbyshire. 
Composed of aggregated short prismatic radiated masses, ending in unequal angular 
stars : interstices tubercular : star concave in the middle, with an oval central convexity, 
flat or concave toward the borders: alternately long and short lamellae 96 to 140 P 
very sharp, the marginal ones ending within the edge of the concavity, the others 
proceeding to a central line. Nearly allied to C. hypocrateriforme, Goldfuss xvii. 1, 
