208 Canadian Record of Science. 
have been discovered in one species of Ceratiocaris, the C. 
stygia of Salter, yet these are represented as “ broad and 
paddle shaped,” not slender and acutely pointed as in 
Anomalocaris. In Ldymenocaris, according to Prof. H. A. 
Nicholson, the “hinder termination of the body is adorned 
with three pairs of unequal spines,” but in the woodcut of 
the type and only known species of that genus, the /Z. 
vermicauda, which is reproduced in so many paleontological 
manuals, all of these spines are represented as terminal, and 
the body segments as devoid of any ventral appendages. 
The first specimens of Hymenocaris, by the way, were 
collected by Dr. Selwyn in 1846, in the Lingula Flags near 
Doigelly, Merionethshire.' The Protocaris Marshii of Wal- 
cott, from the Middle Cambrian of Vermont, is described as 
having no fewer than thirty narrow segments “ between 
the posterior edge of the carapace and the telson,” and a 
telson ‘‘ which supports two caudal spines.” 
The wood-cut of Anomalocaris, is a copy of an original 
drawing kindly made for the writer by Mr. L. M. Lambe, 
F. G.S., the Artist to the Geological Survey of Canada. 
Ortawa, July 30th, 1892. 
THe Frora oF MONTREAL ISLAND. 
By Roperr Camppeii, D.D., M.A. 
For some years I have felt, in common with others inter- 
ested in our local Natural History, that it is a pity we have 
not a complete list of the plants growing on our own island, 
and when giving a paper in March, 1891, on the Summer 
Wild Flowers of Great Britain, I volunteered to do what I 
could personally to repair the want, an undertaking which 
the Natural History Society was pleased to approve. 
1 See Proc. Brit. Assoc. 1852, p. 58. 
