96 
MUREX. ROCK-SHELL. 
rows on the next: length hardly a quarter of an inch • 
breadth one eighth. 
On the Scotch coast: very rare. 
22. Murex reticulatus. Reticulated Rock-shell. 
Da Costa, pi. 8. f. 13— Dorset Cat . pi. 14, f. 13. 
Shell long, slender, tapering to a very fine point, rufous- 
brown : spires eleven or twelve, hardly raised, reticula ' j 
by longitudinal and transverse striae, giving them a tuber- ' 
cled appearance $ each volution with four rows, and the 
body volution four other strong transverse lines at the base 
which are not cut across by longitudinal ones: apertur 
roundish-oval, ending in a very slight canal: outer-lip ’ 
little crenate by the spiral ridges: length about half 
inch; breadth hardly an eighth. 
Dredged and drifted sand, v . v . 
23. Murex tubercularis. Tubercled Rock-shell. 
Montagu, p. 2/0. 
Shell slender, taper, pointed, chesnut-brown: spires nine 1 
or ten, hardly raised, each with three rows of tubercles, 
which are equal in size throughout the shell: aperture , 
small, oval, ending in a canal, somewhat closed by the pil- j 
lar turning inwards : length a quarter of an inch. 
Vninety. Quite white and semitransparent. 
Drifted sand: rare. v. m. 
24. Murex suhulatus. Needle Rock-shell. 
Montagu, pi.30. f. 6. 
Shell very slender, white : spires about fifteen, hardly 
raised, defined by a purplish-brown line, each marked will 
two rows of bead-like tubercles divided by a depressed line, 
in which are observed minute raised lines in a contrary di- i 
rection : aperture small, with a short canal turning to the I 
left ; the base without tubercles and dark-brown f length I 
three-eighths of an inch. 
In the sound of Mull: very rare. ' ^ 
* - 5 * Murex fuscatus. Brown Rock-shell 
Pennant, pi. 85. f. 1— Linn. Trans, viii. pi. 4. f. 6. 
Shell tapering to a fine point, yellowish-brown ; spires J 
ten I 
