Figs 
Figs 
Figs 
Figs 
Figs 
Fig. 
.30 to 33 
. 34 and 35 
. 86 to 40 
36 
37 
38 and 39 
40 
.41 to 44 
41 
42 and 43 
44 
. 45 and 46 
47 
BUCANIA. FRANKEORTENSIS HUMDIGH snipe i-vereinia vrerais oie eretoinie elelolciele nisin ieleeinerene ie eieeiaie ete 
Four views of the silicified shell upon which the species is founded. Top of Tren- 
ton group, Frankfort, Kentucky. The specimen has suffered from maceration, 
consequently the surface markings, the interrupted revolving lines especially, 
are more or less obscure. 
BUCANTA “PERACUDA’ UiITICH fpjte te. ce 0 aisle stele ete eemicenis sestlelelsisrotiencieest tee ee tactic 
Two views of the incomplete type of this remarkable species. Trenton group, 
DeKalb county, Tennessee. 
BUCGANIA: NASHVILLENSIS [WIniCBi: 4.72: Ae ates «cies 1 laine Snice aie e Sa melemter ise ceiniciereees 
Basal view of a macerated specimen from the Trenton at Nashville, Tennessee, 
possessing unusually thick inner lip. 
Apertural view of another specimen from this locality. 
Two views of an incomplete but otherwise well preserved shell from DeKalb 
county, Tennessee, showing form of aperture, the slit and surface markings. 
Small part of dorsal surface of same showing the slit-band and surface markings. 
BUCANIA WANA UITIGW SS. 20\- Altec sire are iene te wis aioe errs ict falecetere ret cteyomte’s eevee elated eterers 
Lateral view of an average specimen of this small species. 
Apertural and lateral views of same, x2. 
Part of the dorsal surface of another specimen, x3, showing exceedingly delicate 
strie connecting the regular transverse lines. The line at the bottom of the 
figure shows the convexity of the dorsal surface. Trenton group, near Burgin, 
Kentucky. 
BUCANTA NANA Val: SUBPAT UGA WITCH Sasace rete oe selec ese cteeeinie ae onesie ceiieieietlaalel= 
Lateral view, «2, and dorsal view of the natural size of a specimen of this variety, 
showing a smaller umbilicus and wider aperture than pertains to the typical 
form of the species. Near Burgin, Kentucky. 
[Bhocoy aspo.w sincrenoi evra ch ON R eles ARS Sangeet oa osonoD saci ooanen oneose dosdodoaqgse 
Dorsal view of a specimen that is largely overgrown by a delicate bryozoan, 
obscuring the finer surface markings. Upper part of Trenton group, Nash- 
ville, Tennessee. 
896 
899 
895 
896 
894 
