BY R. ETHERIDGE, JUNK. 539 



Ch.sxomya ? Etheridget, De Kon., sp. 

 Fig. .5. — Left valve with the umbo removed. 



LOXONEMA, sp. mil. 



Fig. 6. — Specimen seen partly as an internal cast, and in part with remains 

 of the sculpture. 



Plate xli. 



Cyathophyllum Sweeti, Eth. fil. 



Fig. 1.— Four septa, and interseptal loculi enlarged showing the angular 

 and sometimes irregular dissepiments. — x 6. 



Rhizophyllum? -tp. ind. 



Fig. 2. — Corallum showing the form of the calice. 



Fig. 3. — Opposite side of the corallum, with the imbricating laminae, and 

 truncated base. 



Ptychomphalina Eandsi, Eth. fil. 

 Fig. 4. — Imperfect shell with obscure traces of the band on the body 



whorl. 

 Fig. 5. — The non-umbilicate base. 



