364 
SIPHODICTYUM. 
Figuees. 
Fig. 45. Part of a longitudinal section of the specimen figured 
by Lonsdale {op. cit. pi. v. fig. 20), showing the maculsc in the 
laminated wall. Lower Greensand : Atherfield. 46,804. 
Fig. 45. — Siphodictyum gracUe, Lonsd. 
PL XII. Fig. 14. A worn zoariura. Lower Greensand — Folkestone 
Beds: Folkestone. Fig. 14r?, part of the obverse suiiace, sliowing 
Petaloporoid arrangement of the maculae; X 8 dia. Fig. Hi, 
a section, in part longitudinal on the reverse part of the zoarium, 
and in part transverse across a side branch; X 12 dia. Caleb 
Evans Coll. D. 3023. 
PI. XII. Fig. 15. Part of the obverse faee of a better preserved 
specimen; x 10 dia. Lower Greensand — Folkestone Beds: 
Folkestone. J. 8. Gardner Coll. D. 3153. 
LIST OF SPECBIEXS. 
46,804. The t}"pe- specimen. Lower Greensand : Lower Gryphea Beds. "West 
of Whale’s Chine, Isle of Wight. Figd. Lonsdale, op. cit. pi. v. 
fig. 16. 
46,804. A tliin longitudinal section, from the same. Figd. by Lonsdale, 
op. cit. pi. V. fig. 20 ; and Fig. 45. 
D. 3153. A weathered zoarium. Lower Greensand : Folkestone Beds. 
Folkestone. Part of the zoarium, showing some zooecia with 
the obverse face uninjured, is ligm’ed on PI. XII. Fig. 15. 
J. S. Gardner Coll. 
D. 3023. A worn zoarium. Lower Greensand: Folkestone Beds. Folkestone. 
The Petaloporoid arrangement of the maculae is shown on 
PI. XII. Fig. 14a; a section showing a longitudinal section 
along the reverse side of a branch and transverse section- across 
the central bundle and the obverse face of a branchlet, is figured 
as PI. XII. Fig. 145. Caleb Evans Coll. 
D. 3166. A large branched zoarium. Lower Greensand : Folkestone Beds. 
Folkestone. 
