Zoopuyta. | LOWER PALAXOZOIC RADIATA. 31 
Position and Locality—Common in the limestone of Old Radnor, Presteign, Radnorshire; Wenlock 
limestone of Dudley, Staffordshire, and Sedgley. 
Explanation of Figures—Plate |. B. fig. 20. Natural size from the limestone of Old Radnor, 
Presteign.—Fig. 20. Ditto vertical and horizontal sections, shewing the filling up of the base, and thick 
lining of the outer area, with nearly solid sclerenchyme. . 
STREPHODES TROCHIFORMIS (M/*Coy). Pl. 1. B. fig. 21. 
Ref—MCoy, Ann. Nat. Hist. 2nd Series, Vol. VI. 
Sp. Ch.—Corallum simple, slightly curved, widely turbinate, average length one inch three lines, and 
width at mouth one inch one line, with irregular swellings of growth; outer wall very thin, marked with 
equal lamellar sulci (six in three lines at one and quarter inch in diameter, or eighty-three all round) ; 
terminal cup very deep, conical, margin rounded, sides gradually sloping, lined by the thin alternately 
longer and shorter uneven edged lamellze, the longest of which unite and are irregularly blended at the centre, 
connected throughout by numerous curved transverse vesicular plates: horizontal section shews the same 
characters as the terminal cup, the alternate lamella extending about half way to the centre: vertical 
section, apex filled with solid matter, centre with irregular vermicular lines (the sections of the complicated 
edges of the radiating lamellee), from thence to the walls made up of small thick rounded vesicular plates, 
the obscure rows having a slight downward curve. 
One worn specimen from Dudley, in the collection of Count Minster, was considered by him and 
Dr Goldfuss to be a variety of the Cyathophyllum dianthus (Gold.) of the Devonian rocks, from which 
I find it differs generically. 
Position and Locality—Not uncommon in the Wenlock limestone of Dudley, Staffordshire. 
Explanation of Figures——Plate 1. B. fig. 21. Natural size from Dudley. 
STREPHODES VERMICULOIDES (M‘Coy). PI. 1. B. fig. 22. 
Ref.—M°Coy, Ann. Nat. Hist. 2nd Series, Vol. VI. p. 275. 
Sp. Ch.—Corallum of closely grouped, round columns, of exceedingly irregular diameter, from frequent 
intermittance of growth producing very unequal annular swellings and funnel-shaped rings; external wall 
thin, marked by lamellar sulci (six in three lines at a diameter of one inch, or about seventy all round, 
indistinct at the more usual diameter of eight or nine lines); cup deep, lined with alternating larger and 
smaller vertical lamellze irregularly uniting about the centre, their edges and sides papillose and perforated, 
the union of which papille forms a dense broad granular margin to the cup obscuring the lamelle: 
horizontal section about seventy slightly and irregularly curved flexuous radiating lamelle, extremely thin, 
indistinct and equal in the dense, nearly solid, or granular outer area, where they are connected by very 
close, minute, curved, vesicular plates; one half of the lamellz scarcely extend beyond the outer zone, the 
other half suddenly increase in thickness and proceed towards the centre, where they are irregularly united, 
connected by few, large, curved, vesicular plates, forming nearly transverse rows of irregular cells: vertical 
section, outer third on each side very dense, of extremely small rounded vesicular plates nearly united, 
inner half of diameter composed of much larger, thin, irregular vesicular plates. 
This coral may be distinguished from the Cystiphyllum cylindricwm (Lonsd.) by the distinct radiating 
lamellze towards the centre, and the small size of the vesicular structure towards the circumference, forming 
an almost solid, white granular structure. The Devonian Cyathophyllum vermiculare of Goldfuss (also a 
Strephodes) is almost identical in external appearance, but has the radiating lamelle thickest in the outer 
area, straighter and alternately of very unequal thickness, and wants the remarkable dense, almost unradiated, 
outer zone. The lamellz, as usual, are less numerous in young tubes of smaller diameter. 
As far as I can judge from the figure alone, I should think the coral figured by Lonsdale, as the 
Cyathophyllum cespitosum of Goldfuss (Sil. Syst. t. 16. f. 10), from the Wenlock rocks, might be probably 
referred to this species, which in general size, form, and mode of grouping of the branches it resembles— 
