PLATE XXXIY. 
I, 2. Murex Cristatus. (Crested Murex.) Ovate, body large; spire short, with five volutions; apex pointed; six or seven 
longitudinal ribs cover body of shell; these are spiniform and canaliculated, each, with three or four plaits; shell, with five, spiral 
stria?; aperture ovate; beak curved; canal wide; inner lip reflected on columella. 
3, 4. Typhis Tubifer. ( Tubular Typhis.) Oblong-ovate; with four or five volutions, each with four or five longitudinal rows 
of tubular spines, generally in sets of three, between each of which is a solitary, erect, arcuated tube upon superior portion of 
volution. 
5, 6. T. FistulOSUS. ( Pipe Typhis.) Sub-cylindrical; with several, thick, foliated varices; spire short, with four or five 
volutions; apex acute; aperture entire ; sub-ovate; beak nearly straight, closed in front, obliquely truncated below. 
7, 8. Triton Canaliculatum. (Canalled Triton.) Elongated; spire with six volutions, separated by caniculate suture with 
prominent margin; upper volutions, with strong, longitudinal ribs; whole shell transversely striated ; inner lip smooth; outer lip 
thickened, with internal crenulations, plain at margin; aperture ovate ; beak short, curved. 
9, 10. M. Minax. (Threatening Murex.) Short; body large ; spire, with four, narrow volutions; apex sharp; body inflated, with 
double zone of tubercles; whole shell with undulous, irregular stria?; base of body sulcated ; aperture orbicular ; inner lip smooth, 
reflected on columella; outer lip thin ; beak short, curved. 
II, 12. M. Defossus. (Hidden Murex.) Oblong-ovate; spire, with seven, rounded, well-marked volutions ; apex acute ; whole 
shell, with many, sharp, longitudinal, large aud small, transverse ribs; aperture ovate; inner lip smooth, reflected on columella ; 
outer lip thin on edge, with many, elongated, lamellar teeth; beak short, curved. 
13,14. M. Tpicapinatus. (Three-keeled Murex.) Oblong-ovate; spire, with six, sub-turretedvolutions ; apex acute; with three, 
elevated, foliaceous, dentated varices, crossed by about seven, wide-set, prominent strioe, ■with long, canaliculate spine on top of 
each; aperture serai-ovate ; inner lip reflected on columella ; outer lip, with broad, foliated margin; beak recurved; canal wide. 
15,16. M. Alveolatus. (Celled Murex.) Oblong-ovato; acuminated ; spire, with seven volutions with well-marked suture; 
apex acute; whole shell, with prominent, longitudinal, transverse ribs; aperture ovate; beak short, curved, inner lip smooth, 
reflected on columella, with open umbilicus at base; outer lip thickened, dentated within. 
15*. M. Quadratus. ( Squarish Murex.) Short, rhomboidal; spire short, with three, tapering volutions; apex obtuse; body 
bicarinated; with regular, elevated stria?; aperture sub-quadrangular; canal very short, straight. 
17,18. M. Sexdentatus. (Six-tootlied Murex.) Oblong-ovate; spire, with five, ventricose volutions and well-marked suture ; 
with many, longitudinal ribs, decussated with sharp, spiral stria?; aperture elongated, narrow beneath; inner lip smooth, with 
sub-umbilicus behind; outer lip thickened, with five or six, obtuse teeth inside. 
19,20. M. TOPOSUS. ( Knobby Murex.) Oblong-ovate; sub-turreted; spire, with five or six volutions ; apex pointed; body, with 
many, large, blunted ribs, with obtuse knots; base convex ; whole shell, with many, rough stria?, crossed by strong, spiral stria? ; 
aperture ovate; outer lip blunt; beak short, slightly curved. 
20*. Typhis Fistulosus. (Pipe Typhis.) V. figs. 5, 6. 
21. Pypula Bullata. ( Bossed Pyrnla.) Orbicular; body large; spire short, with three, rounded, depressed volutions; apex 
blunted; body, with large, distant knobs in three rows ; aperture ovate. 
22, 23. M. Fpondosus. (Leaved Murex.) Oblong-ovate; spire short, sub-turreted, with five, well-marked volutions ; apex acute; 
body, with eight or nine longitudinal, foliated varices, with many transverse ribs; surface lamellated ; aperture circular; beak 
short, thick, curved; canal nearly closed ; inner lip smooth, reflected over columella; outer lip sharp on edge, with broad, foliated 
expansion. 
24,25. M. Blspinosus. (Tico-spincd Murex.) Oblong-ovate; spire with six volutions ; apex acute; body, with three foliated and 
laminated varices, with two prominent, acute spines on each varix; spire, with two or three, transverse ridges; small tubercle 
between each varix; aperture ovate; inner lip reflected on columella; outer lip thin on margin, thickened and dentated within ; beak 
straight. 
26, 27. P. Smithii. (Smith's Pyrnla.) Pyriform; body large; spire, with four, depressed volutions ; on body three rows of 
oblong, short, blunted tubercles; with unequal, spiral stria?; beak produced; aperture sub-quadrangular; inner lip not thickened 
upon columella; outer lip thin. 
28. M. Haccanensis. (Hackness Murex.) Turreted; spire, with six or seven volutions, and nine or ten, strongly elevated, 
longitudinal ribs, transversely striated ; aperture obovate; outer lip thin. 
29,30. M. TortUOSUS. (Tortuous Murex.) Turreted; spire, with four or five volutions; body and spire with three sub- 
foliaceous varices, with two or three knobs between each ; crossed by wide-set, transverse ribs ; beak short, slightly bent; aperture 
oblong-ovate; inner lip smooth, reflected on columella ; outer lip thin, straight. 
31, 32. M. Calcar. (Spur Murex.) Oblong-ovate; spire acuminated, with six, sub-turreted volutions; apex acute; spire, 
with many, sharp ribs; two transverse spinous ribs on body volution, assuming spur-like appearance, with slight canal in their 
centre; shell, with strong, remote, granulated striae; aperture sub-quadrangular; inner lip smooth, reflected on columella; outer 
lip, thin ; beak long. 
33,34. M. Coronatus. (Crowned Murex.) Oblong-ovate; turreted; spire, with four or five volutions; apex obtuse; body and 
spire with ten, longitudinal, acute ribs ; striate between the ribs ; aperture oblong-ovate; inner lip reflected on columella ; outer lip 
thick, crenulated internally; beak curved. 
35,36. M. Argutus. (Sugar-loaf Murex.) Oblong-ovate; spire, with eight prominent volutions, and well-marked suture; body 
with five or six, transverse ribs, knotted at regular intervals ; about three, longitudinal varices traverse the body; whole surface, 
with many, spiral striae; aperture circular ; inner lip smooth, reflected on columella; outer lip thick, with strong crenulations; beak, 
short and thick. 
( 40 ) 
