218 REVIEWS. 
Dr. Cleve has contributed a monograph of the Swedish Zygnemacee (a 
tribe of confervoid Algz), illustrated by ten beautiful plates; seven gen- 
era and twenty-five species are described, and they appear (I am 0 
course not competent to judge) to be treated of with that care and ability 
that one.is accustomed to find in the countrymen of Linnzus. As all de- 
" scriptions are > translated into Latin, the paper will cay be esee to 
al. The versity of Lund has published two volumes of “Act a Uni- 
versitatis genome for 1866 and ’67. Dr. Olss Stee in full aula 
the Cestoidea and Trematoda, eating by — in Scandinavian fishes; 
he scrutinized no less than specimens of fishes, belonging to seventy- 
six species, and pua tifty-six species of fully- EERE parasitic Platy- 
mintha. Diagnoses of all the species are given in Eatin, and five plates 
Iofosoris; a line of research in which little or nothing has been done in 
Scandinavia since the time of O. Fr. Müller. Dr. Lyttkens has described 
s 
ster), with two plates, and in future parts will treat of the integument, 
etc., of Lithodes, Gádchr and Pagurus. Prof. Wahlgrén has described 
nd fi h 
some valuable additions to the knowledge of its y. pecies 
is the greater one of th ecies commonly confounded under the collec- 
tive name of ** Orthagoriscus mola,” and the only one hitherto observed 
on the American shores of the Atlantic; while the smaller species (M. 
Retzii) is only found on the European side of , M. nasus, 
"o is des no means un on; the Petru ug characters were 
pointe y Prof. Steenstrup and myself in Agardh has 
nly 
in fact, only the metamorphosed leaf); also some interesting researches 
on the history of the Scandinavian flora; based principally on its geo- 
graphical distribution (with two charts). He points out the vestiges of 
three cinta È e., that of the Arctic flora, which towards the close of 

the glacial iberia; the eastern and north- 
eastern (Altaic) element, which at a later time, en the glacial epoch 
and before the appearance of the Fagus sylvestris, wandered into Europe 


glacial phenomena in Southern Sweden, illustrated by a very in- 
aart, showing the disetion of the e ice-tracks. Dr. Lundgrén 





