84 BRITISH PALAZOZOIC FOSSILS. [Zoopuyra. 
SYRINGOPORA RETICULATA (Gold.) 
Ref. and Syn.—Gold. Pet. Germ. t. 25. f. 8. Harmodytes parallelus (Fisch.) Oryet. Mose. t. 37. tie (th 
Tubiporites catenatus (pars.) Martin, Pet. Derb. t. 42. f. 2. (not f. 1). 
Sp. Ch.—Corallum forming large masses of subparallel tubes, slightly flexuous, at the origin of the very 
delicate connecting tubuli; main tubes averaging two-thirds of a line in diameter, usually less than half their 
diameter apart; connecting tubuli very slender in irregular whorls, at nearly equal distances, usually rather 
more than the diameter of the tubes apart; oblique vesicular lining to the walls, or funnel-shaped diaphragms, 
very thick, reducing greatly the central cavity. 
Branching by distinct lateral buds is frequently and easily observed in this species; the young branch 
being for some distance much smaller than the parent, which is not much deflected; the strong foraminated, 
vertical, internal lamellar strize are also seen, wherever the outer wall is decomposed. The characters of the 
species seem very constant, as might even be gathered from the coincidence between the figures of Goldfuss, 
Fischer, and Martin; the latter separating it as a distinct variety from his true catenata, in which I fully 
agree with him on examination of Derbyshire specimens of the latter species. The S. reticulata is intermediate 
between the S. catenata and S. geniculata, in form and size, but perfectly distinct from both. 
Professor Phillips figures under this name a straighter and more slender coral, which I have seen in the 
carboniferous shales near Dublin, but which, if not a distinct species, is a strongly marked variety, requiring 
particular specification. 
Position and Locality.—Common in the carboniferous limestone of Kendal, Westmoreland. 
Genus. CLADOCHONUS (A/°Coy). 
Ref.—Ann. Nat. Hist. Vol. XX. p. 14. 
Gen. Char.—Corallum erect, attached by the basal portion, embracing some foreign body, of very thick 
straight, slender, calcareous tubes, suddenly dilating, at regular distances, into large, oblique, cup-shaped 
terminal chambers, marked within by more than twelve longitudinal sulci; from the point where the dilatation 
commences, a second slender tube similar to the first is given off at an angle varying with the species, and 
terminating at the same distance as the former in a similar cup, bent in nearly an opposite direction to the 
first, and giving rise at its base to a third slender tube, as before, &e. 
These singular and beautiful corals have some relation to Aw/opora, but differ in their curious erect habit, 
regular, angular mode of branching, slender equal stem-like tubes, and abruptly dilated, terminal cups, bent in 
nearly opposite directions. The Aw/opores are attached for the most part by one side; the tubes gradually 
expand to the mouths, which all open nearly in one direction; they have no regular distance for branching, 
and frequently anastomose. The present corals have also much thicker walls to the tubes, the central hollow 
being proportionally very small. 
CLADOCHONUS BACILLARIUS (JM°Coy). 
Ref. and Syn —Jania bacillaria (M*Coy), Carb. Foss. Irel. t. 26. f. 11. 
Sp. Ch.—Corallum upwards of two inches high, branches very slender, cylindrical, straight, five or six lines 
long, and two-thirds of a line in diameter, each rapidly dilated at the summit to a short conical cup, about 
double the diameter of the stem, slightly inclined to one side, and giving origin, from the opposite near its 
margin, to similar straight stems and oblique conical cups. 
The very thick dense lining to the walls leaves a very small central perforation ; the walls become gradually 
thin at the edgé of the cup ; and I have seen traces of the numerous vertical lamellar strixe in one or two cones. 
Position and. Locality.—Abundant in some parts of the carboniferous limestone of Derbyshire. The 
original Irish locality was the carboniferous slate of Lisnapaste, Ballintra. 
