PLATE XL. 
1. Pleurotomaria Atomaria. (Atomed Pleurotomaria.) Ovate; body large, inflated: spire small, with three, tabulated volu¬ 
tions ; apex obtuse; with two, sharp, spiral carime; with fine, punctuated, spiral, longitudinal stria?. 
2. P. Undulata. ( Waved Pleurotomaria.) Ovate; body large, ventricose ; spire small, with two,convex volutions ; apex acute ; 
a broad, flat band traverses centre of body and lower portion of spire ; with longitudinal, undulating stria?. 
3,5. P. Inconspicua. ( Inconspicuous Pleurotomaria.) Depressed; bod}’large; spire minute, with two, flattened volutions; 
convex at sides; aperture large, transversely oval, expanded ; outer lip plain; inner lip reflected on columella; narrow band tra¬ 
verses centre of body and base of volutions; with distinct, undulating, longitudinal stria?. 
4. P. Depressa. (Depressed Pleurotomaria.) Depressed; volutions plane above, convex and concentrically striated beneath; 
with prominent, rounded band on centre of body. 
6. P. Fibula. (Button Pleurotomaria.) Depressed; body large, inflated; spire short, with three volutions ; apex acute; mesial 
band broad, plain; with fine, regular, spiral striae. 
7. P. Sulcata. (Sulcated Pleurotomaria .) Ovoid ; body large ; spire minute, with three volutions and obscure, transverse, 
mesial band; with many, spiral sulci. 
8. P. Expansa. (Expanded Pleurotomaria.) Sub-conic; depressed; body large ; spire minute, with three, depressed volutions; 
aperture expanded transversely; mesial band flattened and crossed by strife; with oblique strife and obsolete, spiral strife. 
9,10. P. Lirata. ( Ridged Pleurotomaria.) Conical; body large; spire small, with four volutions; apex acute; aperture 
circular; outer lip plain ; inner lip reflected on columella ; mesial band prominent, with transverse strife; surface above band, with 
longitudinal, oblique sulci, and with straight, longitudinal sulci beneath band; base rounded. 
11. P. Sulcatula. (Furrowed Pleurotomaria.) Sub-depressed; body large, spire small, conoidal, with three inflated volutions; 
apex sub-acute; aperture oblong, expanded; with spiral sulci above, and fine, concentric strife below; mesial band narrow. 
12. P. Acuta. (Acute Pleurotomaria.) Reversed, conical spire, with three, inflated volutions ; with short, mesial band; surface 
obliquely striated above carina, with spiral lines below. 
13,14. P. Abdita. (Concealed Pleurotomaria.) Smooth, sub-depressed; body large; spire minute, with three, flat volutions; 
apex obtuse; aperture large, transversely expanded; outer lip bounded by band; inner lip reflected on columella; mesial band 
broad, flat. 
15,16. P. Striata. (Striated Pleurotomaria.) Conical sub-depressed; bodv large ; spire small, with three, flattened volutions ; 
aperture sub-orbicular; with broad, transverse, mesial band, crossed by arcuated strip; columella solid; with oblique, widish striae. 
17. P. Glabrata. (Smooth Pleurotomaria.) Depressed, smooth; body large; spire small, with three volutions; body rounded 
at sides ; without band. 
18. P. Flammigera. (Flame Pleurotomaria.) Sub-conic; with three, inflated volutions ; with broad, mesial band and arcuated, 
transverse striae; above the band, surface, with handsome, flame-like, zigzag lines of colour. 
19. P. Ovoidea. ( Ovate Pleurotomaria.) Smooth, ovate, sub-conic ; body large; spire small, with four volutions, sub-angular 
below ; with tiexuous striae. 
20. P. Helicoides. (Helix-formed Pleurotomaria.) Smooth; sub-depressed; body large; spire small, with four volutions; apex 
acute; base umbilicated, with edges spirally striated; aperture lunate; with faint stria?, retroflexed in centre. 
21. P. Vittata. (Banded Pleurotomaria.) Conical, sub-turreted ; volutions ventricose; with broad, flat, spiral, mesial band; 
with longitudinal, oblique stria?. 
22. P. Sculpta. (Carved Pleurotomaria.) Conical, elongated; body large; spire small, with three, inflated, tabulated volutions, 
each, with three carina?; upper and under surfaces longitudinally plaited. 
23. P. Interstrialis. (Interstriated Pleurotomaria.) Oblong-ovate, pyramidal; spire conical, with lour volutions; anex acute; 
body, with three, prominent, spiral carina?, each with two or three, spiral stria? between; base convex, concentrically striate; 
aperture orbicular ; with longitudinal, fimbriated strife. 
24. 25. P. Carinata. (Keeled Pleurotomaria.) Pyramidal; body large; spire small, with four volutions; apex acute; body, 
with broad, spiral, mesial band ; body below band smooth; umbilicus large, open ; upper portion of body and spire, as well as band, 
with oblique striee; aperture large, expanded. . 
26. P. Tumida. (Tumid Pleurotomaria.) Sub-depressed; body large, tumid; spire short, with three volutions; with broad, 
spira, mesial band; with spiral strife and longitudinal, arcuated strife. 
27. P. Dubia. (Doubtful Pleurotomaria.) Cirri-form, depressed, smooth; spire small, with two, flat volutions. 
28. 29. P. Gemmulifera. (Gemmed Pleurotomaria.) Sub-conic, sub-depressed; body large; Bpire small; volutions convex 
above, flat below ; edge nodular; aperture large, expanded ; with gemmuliferous, spiral stria?. . 
30,34. P. Monilifera. (Necklace Pleurotomaria.) Oblong-ovate; upper part of body and spire conical; body, with large, 
spiral, mesial hand on extreme edge, and smaller one below; aperture fairly large; with moniliform, spiral stria?. 
31. P. Coneentrica. (Concentric Pleurotomaria.) Turreted; with quadrate, sub-tabulate volutions above, convex below; 
umbilicus closed; with many, strong, spiral sulci. # 
32. P. Conica. (Conical Pleurotomaria.) Conical; body ventricose; spire, with five, flat-sided volutions; apex acute; base 
umbilicated ; aperture large, sub-ovate, expanded; with bicarinate, spiral, mesial band, with oblique strife. 
33. P. Limbata. (Bordered Pleurotomaria.) Conical, sub-depressed ; spire, with five, flat-sided volutions; with many, oblique 
ribs; upper margin of all volutions nodular; base flat. . . 
35. P. Biserrata. (Doubly-sewated Pleurotomaria.) Acutely conical; suture of syjire and lower angle ot volutions, with doubly - 
serrated carina, between which a crenulated line; base, with three, concentric sulci; with oblique stria?. 
36. P. Tornatilis. (Turned pleurotomaria.) Ovato; body large, inflated; spire small, with four, ventricose volutions; base 
acute ; body, with broad, spiral, mesial band, with sulcus on each side ; base with two, concentric sulci; with distinct, spiral stira?. 
37. P. Squamula. (Scaly Pleurotomaria.) Regularly conical; sides flat; spire, with five volutions; with many, squamous, 
oblique ribs, entire or bifurcate long or short. _ A 
38,42. P. Cirriformis. (Cirrus-shaped Pleurotomaria.) Conical, ventricose ; volutions tabulate above ; aperture circular; with 
broad, mesial band, crossed by arcuated striae; with longitudinal, spiral, distinct, arcuated striae ; with narrow umbilicus. 
39. P. Exeavata. (Excavated Pleurotomaria.) Conical; volutions tumid, with sharp carina on sides ; plain above and below ; 
40. P. Fusiformis. (Spindle-shaped Pleurotomaria.) Smooth, fusiform; sides of volutions flattish, with three, spiral carinse ; 
^ 41 . p. Serrilimba. ( Tooth-bordered Pleurotomaria.) Acutely conical; body short; spire long, with flat sides; with band 
traversing lower margin, with serrated margin. 
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