54 F 
KKWAN lUVKH. 
Strophoslybis ftlicinrtud, sp. nnv. 
Shf'll (h.'ptvssed tuiliin.'ito ami widrr tlian liigli, spire rather sliort, 
less than lialf as hi"h as the outer whorl, as viewed dorsally. Whorls 
six or ])erhaj)S seven, rouruhnl l)ut slightly (iattened at the suture 
aljove, increasing rapidly in size, tlie outer one strongly inllated, veu 
tricose ami imperforate at the base. Aperture suhcireulai-, lip thin 
and simple. 
Surface marked with extremely minute and close set, low, rounded, 
spii'al raised lines, ami by line transvers(! stria- of growth. On the last 
volution Init two of one specimen t luu-e are nineteen of these spiral 
rai.sed line.s, :ind four and .-i half in a milliiuehe. On the outer whorl 
of an apparently adidt sjiecimen, and ne.ar the a}>erture, then* are t hree 
spiral rai.sed line.s to a mm. 
Kkwan river, port age road at falls : two specimens, with the minute 
surface maricing.s well pre.served. One of tln^se is a testiferoua .speci- 
men witli nearly the whole of the spire preserved, but with the outer 
whorl almost completely brok(-n off ; and the other ,-i cast of the inte 
rioi- of the la.st two whorls of the .shell of an adult sjiecimen, wit h a 
small piece of the test pres(u-ved, at and near the apei-lure. I’.eside 
the.se there are four specimens that are probably referalile to (his 
species, though none of them show any trace of th<> minute sj.iral lines 
ui>oi, the exterior of the test. 4’hree of these are from tin- portage 
road .at the falls, ami om- from tin; foot of the [lorlage road. 
This .species would se(-tn to he congeneric with (.Ufdonona caaceUa- 
turn of landstrcim, from the Silurian rocks at Gotland, which Ulrich 
says is n. S/rnp/iosf.i/fufi. 
fa;pii AtoronA. 
Endocnrnu (or Ntumo) .sp. indet. 
F.kwan river, portage road at falls : two fragments of siphuncle.s, or 
of a sijihuncle, that are presumed to be referable to either Endoceras 
or Xanno, on account of their .-ipparent homologies with specimen.s 
collecte<l by l>r. Klls and the writer in 1902 in the ebazy or Black 
River lime.stone at Kingston Mills, r>nt. 
Aclinocftrus luuunalimynse, nom. prov. 
This is a provksional name for .some peculiar, obli<iuely^ sulmiimniu- 
loidal and presumably submarginal siplmuclos, or portions of sipbuncles, 
somewhat resembling those of A. cuckhialnni (Sdilotlieim). They are 
longicoiie and inc-rea.se very slowly in thickness, nearly circular in 
transverse section, and encircled, at more or less regular intervals, by 
