Zoopuyra.| LOWER PAL/ZOZOIC RADIATA. 25 
Var. 8B. Reauiaris (M‘Coy). 
= Alveolites fibrosa (Lonsd.) Sil. Syst. t. 15. f. 1. 
Corallum investing uniyalye shells; tubes one or two lines high; diaphragms at the same height in ad- 
jacent tubes. 
The best glasses at my disposal fail to shew connecting pores on the tubes in a great variety of 
specimens, and I have no doubt of their absence; the rugged tubercles sometimes developed with much 
regularity on the angular edges of the tubes have, I suspect, been taken for pores in some cases, but even 
where they exist, parts of the same mass will be found with the more ordinary character of smooth edges. 
The var. 8. seems to me properly referrible to this genus and species; the peculiar character of the uni- 
formity of height of the diaphragms being probably produced by the uniform height and age of the tubes. 
With regard to the hemispherical peculiar variety named Favosites Lycopodites (Say.), I have not quite 
traced the intermediate links between it and the polymorphous or branched varieties, with which however 
it is identical in the size and all points of structure of the tubes. The original American specimens figured 
by Goldfuss, represent the characters of the coarser varieties, as seen by the naked eye, so faithfully, that 
I am surprised the American writers have not adopted his name. ‘The slender cylindrical, separated tubules, 
exposed in some weathered sandstone or shale specimens, are casts of the interior of the tubes, the coral 
being gone. With regard to the Chetetes Petropolitana of Fischer, which seems so identical with the F. 
Lycopodites, as Mr Lonsdale (Geol. Russ.) distinctly states that the fracture and other characters of the 
tubes were those of Chatetes, as distinguished by him from /avosites and Stenopora, it must be generi- 
cally distinct from the American and our British coral, in which the fracture exposes the exterior only of 
the tubes, and the growth of which is clearly by interpolation. 
The Dudley specimens I haye examined of the Ceriopora punctata and C. affinis of Goldfuss, seem to 
differ from the Hifel specimens bearing the same name, the latter being apparently the true types, the 
former being, I have no doubt, young branches of Stenopora jibrosa, only differing from the ordinary ex- 
amples in haying about eight pores in the space of a line, and the young cells proportionally more numerous. 
Position and Locality—Vavr. Lycopodites—Abundant in the Coniston limestone, Coniston Water-Head, 
Lancashire ; limestone of Cader Dinmael, near Corwen, Denbighshire; schists of Llansantfraid, Glyn Ceiriog. 
Denbighshire ; Bryn Melyn; Blain y Cwm, W. of Nantyre, Glyn Ceiriog ; Moel Uchlas; Caradoe sandstone of 
Alt yr Anker, Montgomeryshire ; schists, hills N. of Conway Falls; schist, Gelli Grin, Bala; schists, Selothyn 
Road; schists, Tan y Bwlch y Groes, S. of Bala. Var. reqularis, schists, Blaen y Cwm, W. of Nantyre, Glyn 
Ceiriog ; Upper Ludlow Rock, Kendal. Branched and polymorphous vars., Wenlock limestone of Sedgley ; 
Wenlock limestone of Dudley; Coniston limestone, Hortons, in Ribblesdale, Yorkshire; limestone of Pont y 
Glyn Diffwys, W. of Corwen; Coniston limestone of Coniston Water-Head, Lancashire ; calcareous schists of 
Bryn Melyn ; limestone, St Helen’s, Westmoreland ; schists of Cirn y Brain, W. of Wrexham, Denbighshire ; lime- 
stone of Llansantfraid, Glyn Ceiriog, Denbighshire; schists of Gelli Grin, Bala; limestone, Mathyrafal, S. of 
Meifod, Montgomeryshire; slates of Blain y Cwm, W. of Nantyre, Glyn Ceiriog ; limestone and sandstone of Alt 
yr Anker, Meifod, Montgomeryshire ; schists, Pentrys, near Meifod ; limestone of Girvan, Ayrshire; schists of 
Corwen, Merionethshire ; limestone of Llandeilo, Caermarthenshire ; limestone, Golugoed, Mandinam, Caermar- 
thenshire; schists, Conway Falls; sandstone, Tre Gil, S. of Llandeilo; Upper Ludlow Rock of Helms Knot, 
Dent, Yorkshire ; and Rother Heath, Kendal, Westmoreland ; schists of Bryn Hithin, S. of Mathyrafal, Mont- 
gomeryshire ; limestone, Old Radnor, Presteign, Radnorshire; schists of Tyn y Cabled; limestone of Apple- 
thwaite Common, Westmoreland; schists of Tyn y Bwlch y Groes, S. of Bala; slates, S. of Llanfyllin, Mont- 
gomeryshire; Caradoc sandstone, Acton Scot, Church Stretton, Shropshire; slates of Tottlebank Heights, 
Coniston Water-Head, Lancashire; sandy schists of Goldengroye, Llandeilo; schists, Alt Goch, Llanfyllin, 
Montgomeryshire ; sandy schists of Cader Dinmael, near Corwen, Denbighshire. A small variety with curved, 
frequently forked, branches, about half a line in diameter, occurs not uncommonly in the schists of Alt Goch, 
Montgomeryshire, and near Llanfyllin. 
E 
