242 DESCnlPTITE CATALOGUE 



there is no external ornamentation, and, except for the pores, 

 no externa] sign of zones. 



The external appearance of the fossil is seen in numerous 

 cases where it has weathered out, so that hand-specimens are 

 covered with individuals of Munieria. The internal structure 

 can he studied by means of sections. In section it is seen that 

 there is an axial canal in the centre of each segment, from 

 which the lateral canals radiate. In longitudinal section they 

 are seen more clearly, and the arrangement of the living tissues 

 is evident (see text-fig. 4). 



HoEizoN. — Cretaceous. 



Locality. — -Bakony. 



Deecke gives no concise definition of the genus, but describes 

 it at some length and places it near Oi/ropoi-ella. In the neigh- 

 bourhood of Bakony the alga is so abundant it is said practi- 

 cally to compose one of the beds of the Cretaceous. Hovelacque 

 (1900) gives a figure of a section of fossiliferous calcite from 

 the Urgonian of the Sub-Alps in which are fragments of what 

 he considers may be Munieria of Deecke, but his published 

 figures are not conclusive. 



Details of the reproductive branches are unknown. In the 

 same matrix Deecke noticed several segments difl'ering somewhat 

 from the normal ones, which he took to be the reproductive 

 branches of the same species. 



V. 11063. A small hand-specimen, and a microscopic slide of 

 the same, described as Munieria by Oswald (1906). 

 The sketch which he gives (see plate to face p. 234) 

 is unsatisfactory, the actual specimen, while showing 

 much more definite structure than does the figure, 

 being still of such an obscure nature that it is highly 

 doubtful if it is an alga. In the matrix are numerous 

 other fragments (not noted by Oswald) which bear a 

 closer resemblance to a Litlioihamnium than does his 

 specimen to Munieria. No accurate determination 

 seems possible at present. 

 (?) Urgonian ; Armenia. Presented by Dr. F. Oswald 



and H.F. B. Lynch, Esq., 1904. 



