M. K. A. Zittcl on Fossil Galcispongiai. 133 



? 7. Cupulochonia spissa, From. ib. pi. iv. fig. 5. 



8. Oupulochonia exquisitely Loriol, Arzier. pi. ix. figs. 9, 

 10. 



9. Cupulochonia "insueta, Loriol, ib. pi. ix. fig. 11. 



10. Cupulochonia Couloni, Loriol, Urg. Land. pi. vi. 

 fig. 17, and vii. figs. 1, 2. 



11. Cupulochonia sabaudiana, Loriol, ib. pi. vii. figs. 7—9. 



12. Cupulochonia Hiselyi, Loriol, ib. pi. vii. figs. 11, 12. 



13. Manon farringdonensis, Sharpe, Q. J. G. S. x. pi. v. 

 figs. 5, 6. 



Chenendopora fungiforms, Mant. (non Mich.) Medals, i. p. 228. 



14. Cupulospongia subpeziza, D'Orb. Prodr. Et. 22, no. 

 1521. 



Manon peziza, Goldf. Taf. v. fig. 1. 



? 15. Spongia boletiformis, Mich. Ic. pi. i. fig. 1. 



? 16. Epitheles multiformis, Rom. Spongit. Taf. xiv. fig. 2. 



Pachytilodia, Zittel. 



Scyphia p. p., Goldf. 

 Hippalimus p. p., Rom. 



Sponge funnel-shaped or pyriform, large, very thick-walled, 

 with a broad depression in the vertex. Base furnished with 

 a smooth covering layer. Rest of the surface naked, without 

 special oscula or canal-openings. Skeleton consisting of a 

 coarse-meshed net of very thick, curved, anastomosing calca- 

 reous fibres, which sometimes coalesce to form regular lamellae 

 and vesicles, and among which the circulation of water took 

 place without any special canal-system. 



This genus is distinguished from Pharetrospongia by its 

 thick skeletal fibres, the complete absence of a canal-system, 

 and its very thick wall. 



The typical species, Scyphia infundibuliformis, Goldf., 

 Taf. v. fig. 2 (Quenst. Petr. Taf. exxxii. figs. 1-3), occurs 

 frequently in the Tourtia of Essen. 



Leiospongia, D'Orbigny*. 



Achilleum p. p., Miinst. 



Leiofunyia, From. 



Leiospongia, Aulacopagia, Ltenopagia, ? Elasmopagia, Pom. 



Sponge nodular or branched, on the sides with a smooth or 



The position of this genus among the Pharotrones cannot be regarded 



ton consists of anastomosing calcareous fibres, is nearly allied tu certain 

 calcareous Ilydrozoa (MiUepora). 



Ann. cfr Mag. N. Hist. Ser. 5. Vol iv. 10 



