MENEVIAN GROUP. 
SECTION OF THE LOWER AND MIDDLE CAMBRIAN IN N. WALES. 

Part of 
Bala Group. 
e. Tremadoc 
Group. 
f. Arenig or 
Skiddaw Group. 
d. Ffestiniog c. Menevian 
a. Longmynd, and 
Group. Group. 
b, Harlech Groups. 
2, MrppLE CampriAn (Sedgwick). Lincuna Fuacs (Auct.). Upper CAmBrran (Lyell and Salter). 
c. Menevian Group (Salter and Hicks). Lower Lingula flag (Sedgwick). 
d. Ffestiniog Group (Sedgwick). 
e. Tremadoe Group (Sedgwick, Salter, Phillips). 
Middle Lingula flag and Upper Lingula flag (Salter). 
c. MENEVIAN* GROUP. 
Canada; St. John’s Group in Newfoundland. 





uo 
~ 
N. and S. Wales; Sweden; Bohemia (Etage C of M. Barrande); N. America and 




* Menevia is the classic name for St. David’s. 
+ The names of donors are in parentheses. 
figured and described. 


The bishop is styled Episcopus Menevensis. 

c d 7 | 
Salavadlot 1a SD “ oe Names and References; Observations, &c. } Numbers and Localities. 
Drawers. | Synopsis: and Figures of Genera. 
Sponges. AMORPHOZOA (Sponges and Foraminifera). | 
Gh Protospongia fenestrata, Salter (Quart. Geol. | Porth-rhaw, St. David's. 
Journ. Vol. xx. pl. 18, fig. 12). A very | (Pres. Dr. Hicks.) b. 279 
simply formed sponge, with the fibres often (Mr. Homfray). St. David’s. 
rudimentary, and crossing at right angles on a. 252, Tyddyngwladis, in 
the plane surface, as minute stars. the Gold mines, Dolgelly. 
| P ini ; ‘ . by Mr. J. Plant, 1869. 
| | [P. flabella, Hicks, is in Dr. Hicks’ cabinet.] (Pree by Mr JePlan ) 
Gh | | Protospongia diffusa, Salter (Reports Brit. As- | a. 289, St. David's. (Dr. 
soc.). A less regular species, with closer and | Hickst.) 
more matted fibres. There are probably | 
| several forms of the genus. 
| Cystiden (globe-crinoids). | RoATNODERMATA (Crinoids, Starfish, Sea 
| urchins), more particularly noted in the | 
Bala group. | 
Gh | Protocystites} (Salter MSS.) sp. Rather an ob- | a. 281, Same locality (same 
| scure fossil, with long stem and arms. Frag- | donor). 
| ments only are known, and are chiefly in | 
} Dr. Hicks’ rich cabinet. 
Brackets [ ] include such species as are not yet obtained, but are likely to be so. 
~ This MS. name, like many others in the Catalogue, is given for present convenience, and can have no authority till the forms are truly 
1—2 
