(132) 
Lithophyllum (?) munitum sp. nov. 
Thallus brownish-red when living, pees Pade reided lobed 
crusts with densely crowded processes or bra s, these either 
simple and verrucose, 2-4 mm. in diameter, or irregularly and 
sparingly divided, the branches reaching a length of about 4 mm. 
reaching a length of 11p: conceptacles (of sporangia?) convex 
but very little prominent, about 300 in diameter when seen from 
above. (PLATES 86, 88, 89. 
Bawamas: Cave Cays, Exuma Chain (xo. 4023). 
The specimens were growing on a coarse dead coral near the 
low-water mark under shelving rocks. They form very irregular 
masses, attaining finally a thickness of 3-6 cm. The irregularities 
are doubtless in part accounted for by the fact that the plant en- 
closes various other organisms, shows numerous canals made by 
animals, and in parts a Gontolithon (strictum?) is intermingled or 
superposed. A section shows numerous overgrowing hypothallia 
and overgrown conceptacles are abundant. No sporangia have 
been seen and the determination of the genus therefore still remains 
uncertain. Provisionally, it may be placed as above and in the 
section Hulithophyllum. In habit the species somewhat resembles 
Lithothamnion fruticulosum aemulans. It also approaches cer- 
tain stunted forms of Lzthophyllum daedaleum Fosl. & Howe; in 
structure, it is more closely allied to Gondolithon accretum Fosl. & 
Howe, lacking, however, heterocysts. 
Lithophyllum bermudense sp. nov. 
Thallus forming crusts 1-2 mm. thick on calcareous sane es: 
in 
seen from above, often, however, but little prominent, orifice single. 
(PLATE 81, F. 33 PL LATE 85, F. 3; PLATE 92.) 
BeruupA: Spanish Point (#0. 799, type). 
Fioripa: Sands Key (no. 29208). 
The specimens seen exhibit uneven surfaces, looking as if rather 
