ARCHERINA, GOLENKINIA AND BOTRYOCOCCUS. 423 
On Archerina, Golenkinia and Botryococcus, 
By 
Sir Ray Lankester, K.C.B., F.R.S8. 
With Plate 25. 
A. ARCHERINA IDENTICAL WITH GOLENKINIA AND RICHTERIELLA. 
In the year 1885 I described in this Journal 
new ser., p. 61—and figured in a coloured plate, a minute 
chlorophyllogenous organism, for which I formed the genus 
“ Archerina.”’ I named the species “ A. boltoni.”’ Nine 
years later! Professor Chodat, of Geneva, described the same 
organism under the name “Golenkinia radiata,’ in 
Morot’s ‘Journal de Botanique,’ Tome vii, 1894, September 
16th. Professor Chodat obtained his specimens from a small 
duck-pond in the public park at Geneva. My specimens were 
sent to me in a bottle-full of ving material by Mr. Thomas 
Bolton, of Birmingham. I have now reason to believe that 
the “ gathering” was obtained by Mr. Bolton from the duck- 
pond of the gardens of the Royal Botanical Society in 
Regent’s Park, whence I have since obtained Archerina. 
No one who compares my figures of the actinophrys-lke 
form of Archerina (figs. 2, 4, 5, 6, 7, 13, 16, and 17 of PI. 7, 
vol. xxv, ‘Quart. Journ. Micr. Sci.” New Series) with 
Chodat’s figures and description can doubt that the organism 
figured by me is the same as that represented nine years later 
VOllesexexaVe 
1 T am indebted for my knowledge of Professor Chodat’s memoirs to a 
most valuable and compact little volume on the ‘ British Freshwater Algz,’ by 
Mr. G. 8. West, published in the Cambridge Biological Series, 1894. 
