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MURICIDAE 201
3 inches in length, with a rather long siphonal canal, and bearing 8 long
axial ribs (or former varices) which are blade-like and are curled into long
upswept, large spines. With or without small, low, spiral threads which may
be more pronounced on the last whorl. Color yellowish to brownish white.
Sometimes with subdued, wide brown lines. The form pinnata Dall is a
smaller, 8 to 9 ribbed, spirally threaded variant from the same region. Uncommon
from 21 to 74 fathoms.
Figure 44. a and b, Forreria cerroscusis Dall and, c and d, its subspecies, cataVmen-
sis Oldrovd, from California. Reduced y_>.
Forreria cerrosensis catalmensis Oldroyd
Southern third of California.
Catalina Forreria
Figure 44c, d
2 to 3 inches in length, similar to the typical cerrosensis, but with 7 ribs,
sturdier shell, with less development of the blade-like ribs, and often with
more brownish coloration. Formerly thought to be Boreotrophon triangu-
laris Cpr. Moderately common offshore, sometimes cast ashore.
Murex cabriti Bernardi
Subfainily MURICINAE
Genus Miirex Linne 1758
Subgenus Murex s. str.
South % of Florida and the Lesser Antilles.
Cabrit's Murex
Plate I oh