326 
Aug. F. Foerste 
cited by Goldfuss, Lewistown^ in Oneida- Country, this probably 
should read Lewistown, Ontario Lake. In that event, it may be 
worth while noting that forms resembling Byssonychia richmond- 
ensis occur in the Richmond north of Lake Ontario, as far east as 
Streetsville, a short distance west of Toronto. 
The specimen figured by Hall {Paleontology of New York, vol. I, . 
pi. 80, Figs. 5a, 5b) is stated by Whitfield and Hovey to have 
been found loose on the south side of Lake Ontario. It gives 
indications of the presence of 30 plications, and formerly must 
have had at least 2 more, the full number not being known. 
Another specimen, not figured, but preserved in the Hall collection 
in the American Museum of Natural History, and evidently 
collected after the publication of vol. I, presents the outline and 
the broad, fiat anterior face of Byssonychia richmondensis, and 
almost certainly belongs to that species. The anterior umbonal 
angle is abrupt. The number of plications preserved is 33, and 
the original number must have equalled 37. It is regarded as 
belonging to the same species as the form figured by Hall. 
The result of these studies has been to definitely determine 
that Byssonychia carinata, of Goldfuss, belongs to the group of 
species having a flattened anterior face, but an actual examination 
of the type must be made to definitely determine the identity or 
nonidentity of this species with Byssonychia praecursa or B. 
richmondensis. Under these circumstances, it seems best to dis- 
card the use of Goldfuss’s name, until more is known regarding 
his type. 
A Taeniastee from the Richmond of Meaford, Ontario 
Taeniaster meafordensis, sp. nov. 
{Plate IV, Figs. 5, 6, 7) 
Central disc 7 to 8 mm. in diameter. Rays 11 to 15 mm. in 
length. Total spread of the animal,, including the rays, therefore 
about 35 mm. Rays 2 mm. wide at the margin of the central 
disc, tapering rather gradually toward the extremities. 
Ambulacral groove occupied by two rows of ambulacral plates, 
about 8 in a length of 5 mm. Those on opposite sides of the 
median line alternate with each other, the adjoining margins 
being slightly concave, so that two adjoining ends on one side of 
the median line fit against the concave middle of the plate on the 
