Zoopuyta. | UPPER PALZOZOIC RADIATA. 79 
Sect. I].—RADIATA OF UPPER PALASOZOIC ROCKS (Carboniferous and Permian). 
3rd Class. ZOOPHYTA. (Lin.) See page 1. 
2nd Ord. ZoopuyTaria. See page 9. 
3rd Family. TUBIPORID. See page 11. 
Genus. FISTULIPORA. See page 11. 
FisTuLIPORA MINOR (M°’Coy). PI. 3. B. fig. 12. 
Ref —M°Coy, Ann. Nat. Hist, 2nd Series, Vol. III. p. 130. 
Sp. Ch.—Cell-tubes with slightly prominent margins at the surface, about four in the space of one line. 
rather less than their own diameter apart, the intervening space composed of from one to three rows of 
the minute vesicular cells. 
The diaphragms in the main tubes slightly irregular, about half their diameter apart; the tubes are 
from half a line to nearly an inch in length, according to the age of the example, but not altering mate- 
rially their diameter or relative distance. It most usually occurs incrusting crinoid stems or other foreign 
bodies, from which the tubes radiate to the surface, and I suspect the whole corallum, from the minute- 
ness of its parts, may have been taken for a Favosites or Alveolites, from which the lens will easily 
distinguish it by shewing the reticulated interstices between the tubes. 
Position and Locality—Not uncommon in the carboniferous limestone of Derbyshire. 
Explanation of Figures.—P\. 3. B. fig. 12. Old specimen, natural size, from Derbyshire, enveloping 
a foreign body, shewing the appearance of the rough fracture and a portion of the exterior.—Fig. 12 a. 
_ Ditto, vertical, rough, and polished sections magnified four diameters, the former shewing the tubes entire 
with the intervening cellular structure, the latter shewing also the transverse septa of the tubes.—Fig. 
124. Ditto, horizontal section of another portion magnified twelve diameters. 
3rd Ord. ZoanrHarta. See page 13. 
2nd Tribe. MADREPORACEA. See page 13. 
DENDROPORA MEGASTOMA (M/°Coy). PI. 3. B. fig. 11. 
Ref.—M°Coy, Ann. Nat. Hist. 2nd Series, Vol. III. p. 129. 
Sp. Ch.—Stem slightly flexuous, subquadrate, branches few, distant, resembling the main stem in size 
and shape, and coming off from it nearly at right angles; each face has a row of large oval cells with 
prominent edges, the sides of which have twelve vertical sulci ending in tubercles; the cells of each row 
are rather less than twice their diameter apart, the lateral rows opposite and alternating with the other 
two rows; the width of the cells slightly exceeds that of the face on which they rest, so as to indent 
the margin, interstices obscurely striated and poroso-punctate; width of stem about half a line. 
