M. K. A. Zittel on Fossil Hexactinellida. 503 



The ceecal radial canals are straight and rather strong. Ske- 

 leton consisting uf large coalescent sexradiates with solid 

 crossing-nodes, forming a regular open network with cubical 

 meshes. Sometimes a covering web like that of Tremadtctyon 

 is present. 



"^ Scypliia 'paraUela^ Goldf. Taf. iii. 3. 



S. clatliratcij Goldf., Taf. iii. 1. 

 *aS'. paradoxa^ Mlinst., Goldf. Taf. xxi. 6. 

 *6'. Beaumonti^ Eeuss, Bohra. Kr, Taf. xvii. 12. 

 'fLaoccetis infundibulata. Pom. Pal. de I'Oran, pi. i. bis. 



"[L. dichotoma, Pom. I. c. pi. ii. his, 3, 5. 



EUBROCHUS, Sollas J. 

 • Geol. Mag. 1876, p. 398. 



Sphenaulax, Zitt. 



Top-shaped, cup-shaped, or wedge-shaped. Upper margin 

 truncated. Wall thick, laid in coarse mreandric folds, which, 

 on the outer surface, are separated by deep longitudinal fur- 

 rows. The folds traversed by ctecal radial canals, the round 

 ostia of which open on the wall of the central cavity, and 

 stand in vertical and horizontal rows, crossing each other at 

 right angles. Skeleton and covering- veil as in Craticularia. 



Scyphia costata, Goldf. Taf. ii. fig. 10. 



SPORA.DOPYLE, Zitt. 



Cup-shaped, funnel-shaped, or ramose. Outer surface with 

 the ostia scattered or standing in quincunx. Radial canals 

 simple, blind. Inner wall with ostia arranged in rows. Ske- 

 leton and superficial layer as in Craticularia. 



Scyplda ohliqua, Goldf, Taf. iii. 5 «, &, d. 

 *6'. texturata, Goldf. Taf. ii. 5. 

 *S. secunda, Mlinst., Goldf. Taf. xxxiii. 7. 



Spongites 7-amosus, Quenst. Jura, Taf. 83. 1. 



Verrucoccelia, Etallon. 



Actes de la Soc. Jurass. d'emul. de Porrentruy, 18G0, p. 129. 



Polyzoic, ramose, frequently witli calicjs arranged like 

 buds around a common stalk. Central cavities tubular, com- 

 municating, Avith a terminal aperture or closed. Canal-system 



I The genus EuhrochuH is insufficiently characterized ; possibly iden- 

 tical with Crafifularia. 



