1210 : Proceedings of Scientific Societies.  [Nov., 1883. 
June 20 —Herr A. W. Eichler read a dissertation of L. Cela- 
kovsky upon the structure of the fruit scales of the Abietinz, 
and added thereto extensive remarks upon their various forms in 
different genera, and upon their mode of development. Herr A. 
B. Frank made some remarks upon the hair cushions in the axils 
of the leaves of Ærcilia (Bridgesia) spicata D. C., a Chilian plant, 
climbing over rocks or tree stems. Herr Peters described 
Lagomys littoralis from the Tschuktschi peninsula. Herr L. 
in Wittmack spoke upon the specific characters of the flowers of 
Hordeum bulbosum L. 
July 13—-Herr Magnus described a new alga, Cladophora 
ophiophila, parasitic upon the surface of the freshwater snake 
Herpeton tentaculatum, a native of Siam, and also made some re- 
marks upon the ovules of Reseda lutea. Herr von Martens de- 
scribed some new land and fresh-water Central Asiatic snails, of 
the genera Helix and Buliminus, and also a Scalaria and à 
Turritella found by the Gazelle expedition. Herr Peters described 
a new genus and species of Batrachia, Hy/onomus bogotensts from 
Bogota. Herr H. Dewitz made a further communication upon 
the climbing apparatus of insects, as instanced by Tek 
dispar, Stenobothrus sibiricus, etc. Herr Eichler presented 3 
communication from Th. Von Heldwich of Athens, upon hetero- 
phylly in Ceratonia siliqua, a Grecian plant much frequented by 
insects. ee: 
October 17.—Herr Nehring illustrated some points rer 
anatomy of Halicherus grypus Fabr. Three species oe ) 
of the com — 
ls, is inclined to 
place all in one species. The intestines were seventeen ti : 
length of the body and were full of half-digested fiche 
and of Ascaris osculata. Herr Peters changed the pre pty 
batrachian genus Hylonomus to Hyloseirtus, and ey: graan 
5 ý 5, 
ovember 21. Herr Peters presented a new species Martens 
lous batrachian Œdipus yucatanus, from Yucatan. "Aia 4 
spoke of the land-shells of the Pacific coast of North A sae 
and gave a list of the species. nia (A 
cember Ig. Hei Peters described three new batrachia (a 
blystoma krausei, Nyctibatrachus sinensis and Bufo buc teeth i 
made some remarks upon the pterygoid and palatine p 
of the bottom of the North sea. Herr Von Martens 
remarks on the fauna of the Black sea with a comparison te 
it and those of the Mediterranean and North sea. 
