nowLiso. 
SILURIAN FOSSILS. 
53 F 
Diaphnrmtto'nw ami Slrnphoslyhtst is (ho oltliquoly folded columella of 
the latter, while Kiustman, in the first volume of his recently published 
translation of Ziitel’.s “'Pext-hook of Fal:eontoln<^y,” (juotes Strophos- 
fylm, Hall, as a synonym of /‘lafyosfnnia, Conrad. 
Slrop/iosfyl IIS a))i/>liis, sp. nov. 
.Shell imperforate, .suhglohose, widely expanded and slin;htly depressed, 
about as wiilc as hioh, spire .small ami very short. Whorls four, 
increasing very rapidly in size, those of the spire rounded ; the outer 
on(“ moderately convex ius viewed dorsally, exp.'inded widcdy in the 
direction of it,s height, widest above (he midheij'htand rather narrowly 
rou.ifled at the Kise ; suture ilistinetly impressed ; aperture very large, 
apparently wi<lely subovate. ; out.er bp thin and simple ; characters of 
th(! columella not well .shown in either of the specimens collected ; 
posterioi portion of t he outer bp extended considerably so as to embrace 
part of the preceding whorl. 
.Surface marked with fine transverse stria* of growth, which are 
curved convexly forward jvirallel to the outer bp. 
klkw.'in river, ])orl;igo I'O.ad at. falls : three .specimens, which do not 
show I he ex.act shape of ihoaperturi' at all well. The inteiiorof 
each is com|)letely filled with stone, .so that the inner edge of the coin 
me'la is covensl, hut in one of the spceiinen.s there .are indications of 
a llexuous longitudinal groo\e just behind the columella. 
Sirophos/yhis injlatns, s]i. nov. 
Shell subglobose, naticoid, imperforate, about as wide as high, spire 
short. VN'horls probably four in pcud'eet specimens, (hough not more 
than tliree are pie.s('rver| in the most, perfect specimen collected, in- 
creasing rapi<lly in size, (In^ outer one inllatod and ventricose, most 
convex at about, its midheight ; aperture not well showp in tlui speci- 
men described but apjt.arently subovate ; outer bp thin and simple, its 
posterior ptirlion apparently not .so extended as to embrace part of the 
previous whorl 
.Surface marki'd with obliquely transverse lines of growth, 
Kkwan river, portage road at falls; a cast of the interior of the 
shell of a large specimen with small portions of the test preserved, 
from which the foregoing description was made, and two small sped' 
men.s ; also a large testiferous specimen that is probably referable to 
this species, though its outer whorl is considenibly compre.s.sed laterally. 
