402 I^^OTES AND EXHIEITS. 



latissimus dorsi sometimes absent, with the gluteus externus 

 undeveloped, with the adductores longus et brevis, semitendinosus 

 and accessory semitendinosus all well-developed, with the ambiens 

 sometimes absent, and when present exhibiting a characteristic 

 arrangement, and with " musculi lumbricales" in the foot. 



I^^OTES AXD EXHIBITS. 



Note on some Seaweeds from Port Jackson and adjacent coast, 

 hy E. P. Kamsay, P.L.S. — In a recent letter from our esteemed 

 correspondent. Baron Perd. von Mueller, that distinguished 

 Botanist has kindly given me the names of the following Alga, 

 which I had sent him for determination, requesting me to bring 

 under the notice of the Society the fact that no fruiting specimens 

 of Claudia hennettiana have yet been recorded. This beautiful 

 and delicate Alga was dredged near Spectacle Island ; where 

 particular search should be made for this rare and interesting 

 plant. And indeed the marine flora of Port Jackson and the 

 adjacent coast is worthy of special attention and research, several 

 new species and a new genus having been recently discovered on 

 our shores. The following species from Bondi have been deter- 

 mined by Professor Agardh, of Lund, the greatest authority on 

 AlgcB : PteroclacUa lucicla, J. Agardh ; Splachnidium rurjOBum, 

 Grreville ; Lederstedtia austraJis, J. Agardh. {iiov. cjen.et sp.J ; 

 Gelidium corneum, Grreville ; Plocamiiim angustum, J. Agardh. 

 Specimens of a Laurencia and of a small Martensia, probably new, 

 were obtained in deep water. I may also mention that a new 

 species of Sargassum was dredged near the North Head. 



Professor Stephens exhibited a collection of rocks and fossils 

 illustrating the structure of the AVestern Coal-fields, as explained 

 by Mr. Wilkinson in his map of AVallerawang (1877). The 

 oldest stratified rocks, quartzites, conglomerates, and sandstones 

 are Devonian, as shewn by characteristic fossils from Mt. Lambie 



