Fia. 
FIG. 
FIG. 
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_ Fa. 
FIG. 
FIG. 
Fic. 
PLATE 42. 
. PLEUROTOMARIA BROADHEADI....-....--2.--2.--00--- is 2/2). pc eee 
a. Lateral view ; natural size. 
b. View of the opposite side of the same, showing the aperture. 
Portions of the shell on this side have been a little crushed by 
pressure. Fragments have also been broken out of both sides, as 
shown by the outlines upon both the figures. 
EEEUROLOMARTASNE WiPORDLUNSIS Sheen een eee eee eerie ean canciaeeer 
a. Lateral view; natural size. 
b. Apertural view of the same. 
SNA TICOPSIS | MO NUE DIK RIA 2a era pete a ee ye patere ection OL laa 
a. Lateral view; enlarged. 
b. Apical view of the same. 
c. Portion of the surface enlarged ; the strie of growth showing the 
character of the border of the outer lip. 
1 \CONULARTA (CRUSTUIGAG ce Sete reteretere are reteteeters ereyay iam inen ie raeeris tetra c lore Soil Li 
a. Lateral view; natural size. 
) WAN TEHRA COPTERAY PO LIRA We acme cee aiescinicins eres CREB ere latelais Sieiece 
a. Right valve; natural size. 
b. Left valve. Both valves have been slightly distorted by pressure. 
c. Diagram showing convexity of the valves. 
SINS Y9 62 bs On Ya 9 00 6) ee Re OCR EacmbaceDob abos oes 
a. Lateral view; enlarged. 
b. Dorsal view of the same. 
he (NAUTILUS) DAINIVAIGIUE NISTS ee Sue ae a aaa eset aa aes a ats yia ayo seat 
a. Outline of a cross-section of a volution near the outer chamber; 
natural size. 
SI SERP UMA: NG LTA aie S05 Ay eae naan ee alate ere sees bs eee gS ota 2G el cat sven Re 
a. A cluster of shells, attached to a fragment of a molluscan shell; 
enlarged. : 
169 
168 
170 
166 
166 
171 
