1871.] CARRTTTHEES SUPPOSED VEGETABLE FOSSILS. 447 



eggs of these flying lizards (' Ornithosauria,' p. 106). That they are 

 reptilian eggs there cannot be any doubt ; and as they add somewhat 

 to the knowledge of the Eeptilia of the Secondary rocks, and are 

 likely to be quoted by writers, T venture to give them a specific 

 name. 



Mr. Buckman has already, in the Quarterly Journal of this So- 

 ciety, described some eggs which he discovered in the Great Oolite 

 of Cirencester. From their form he determined them to be reptilian ; 

 and on examining the sculpturing on the surface of the egg, I find 

 his determination is confirmed. He proposed for them the generic 

 name Oolithes ; and, employing this, I now add to the oblong form 

 described by him the round StOnesfield eggs as a second species, with 

 the designation Oolithes splicericus. 



The Rev. Thomas Fox, of Brixton, Isle of "Wight, has supplied 

 me with another and much smaller egg, which he obtained from the 

 Wealden in that locality, and which he also believed to be a fruit. 



The three species may be thus characterized : — 



Oolithes, Buckman, Quart. Journ. Geol. Soc. vol. xv. p. 107. 



0. BATHONic^, Buckman, Quart. Journ. Geol. Soc. vol. xvi. p. 107. 

 (PI. XIX. figs. 8 & 11.) 



Eggs ovate, twice as long as broad. 

 Locality. Great Oolite of Cirencester. 



0. sPH-SRicus, sp. nov. (PL XIX. figs. 4—7, 10.) 



Eggs globular, about three quarters of an inch in diameter. 

 Locality. Stonesfleld Slate, Stonesfield. 



0. OBTirsATXJS, sp. nov, (PI. XIX. figs. 1-3.) 



Egg small, subglobular, obtuse on one side, about three eighths of 

 an inch in diameter. 



Locality. Wealden of Brixton, Isle of Wight. 



Count Sternberg, in his great work on fossil plants, describes a 

 supposed Alga from Solenhofen under the name of Cystoseirites 

 nutans (' Flora der Vorwelt,' fasc. v. & vi. p. 35, 1833), having a 

 frond with linear branches bearing opposite, linear-lanceolate, a- 

 cuminate, falcate, and spreading leaves with a single midrib ; and 

 the figure (Z. c. pi. viii. fig. 1) agrees vnth the description, and with- 

 out doubt accurately represents the specimen. It has been since 

 ascertained that the drawing was made from an imperfect specimen 

 of a cuttle-fish, in which the body is wanting and the fleshy arms 

 have perished, leaving only their horny hooks somewhat in the posi- 

 tion they occupied in the animal. These Sternberg mistook for the 

 opposite leaves of an Alga. Miinster figured a more perfect speci- 

 men, and gave to it the name of AcanihoteutJiis speciosa (Beitrage, 

 fasc. i. p. 105, pi. ix. 1843). 



Among the specimens for the examination of which I am indebted 

 to the Rev. P. B. Brodie there is a delicate cuttle-bone, which so 

 closely resembles a leaf that it is not to be wondered that it was 



