388 M. K. A. Zittel on Fossil Lithistidce. 



other species subsequently described by him. Probably some 

 of Courtiller's Tuhulospongice belong to 8cytalia. 

 All the species are Cretaceous. 



*1. Jerea turhinata, Rom. Spoug. xii. 1. Senonian, 

 Ahlten. 



*2. Cnemidium periusum^ Reuss, Kr. xvi. 7, 8, 11-14. 

 Cenomanian. 



3. Spongia racliciformis , Phill. Yorksh. i. 9. Senonian. 



4. Spongia terebrata, Phill. ib. i. 10. Senonian. 



5. Spongia digitalis^ Rom. Spong. x. 10. Tourtia. 

 *6. Ventriculites microporus, Rom. ib. vii. 6. Senonian. 



7. Eudea anmdata^ Rom. ib. xi. 2. Turonian. 



8. Epeudea nodosa, Rom. ib. xiv. 3. Cenomanian. 



9. Spongites cylindripes, Quenst. Petr. cxxxiii. 21, 22. 

 CM^;^e^'^'- Planer. 



[ ? Tuhulospongia insignis, limbata, elongata, Jlcoidea, con- 

 torta, dendroidea, Court, (non T. tuber and multiporella).'] 



Stachyspongia, Zitt. 



Siphonoccelia p. p., Horn. 



Sponge cylindrical, much elongated, rather narrowed at both 

 ends, very thick-walled, with a simple central cavity travers- 

 ing the whole sponge. Rather large conical tubercles on the 

 outside. Skeletal and canal-system as in Scytalia. Creta- 

 ceous. 



1. Siphonoccelia spica, Rom. Spongit. xi. 5. Tourtia. 



2. Siphonocoelia tuberculosa, Rom. ib. xi. 4. Senonian, 

 Sutmerberg. 



Pachinion, Zitt. 

 Jerea p. p., Rom. 



Sponge cylindrical or clavate, simple, narrowed towards 

 the base, short-stalked. Central cavity wide, simple, deep ; 

 at its lower end with several vertical tubes continued into the 

 base. The thick wall appears to the naked eye composed of 

 coarse anastomosing fibres, between which are wide irregular 

 spi.ces for the circulation of water. The corpuscles are of 

 considerable size, crooked, branched at the ends, and covered 

 with short tubercles and knobs. Covering-layer composed of 

 small, elegant, filigreed and strongly branched corpuscles, and 

 of innumerable forked anchors (PI. VIII. fig. 8) stuck among 

 these with the shaft directed inwards. 



1. Jerea scripta, Rom. Spong. xiii. 1. Mucronatus-ChdXk. 

 of Schwiechelt and Thadensen near Duddenstedt. 



