408 
BULLETIN OE THE UNITED STATES FISH COMMISSION. 
Murex pomum Gmelin. 
Murex pomum Gmelin (ex parte), Syst. Nat., p. 3527,1792. 
Murex pomum Reeye, Conch. Icon., m,1846,pl.ix, fig. 35. 
Shell variable in size, form, and coloring, rather solid, with a moderate spire and canal of equal 
length, with three to four heavy varices; there are one or two, sometimes three, intervarical ribs, 
which are generally strong and often knoblike. Throughout, the shell is covered with strong ribs, 
which often break into tubercles, and besides these there are generally revolving, broken threads. 
Frequently the growth lines are raised into lain elite, and the entire surface becomes frilled. The 
surface is generally variegated with whitish and fulvous brown; sometimes the shell is imperfectly 
banded. The aperture may be nearly white, yellow, or brownish orange, and it is frequently marked 
with very dark brown. 
Length, 50 to 85; diameter, 30 to 50 mm. 
Cabo Rojo light, two badly worn shells; West Indian region; Florida, etc. 
On the west coast of Florida and in some other localities this species seldom attains a large 
size, has usually three varices, and presents much the aspect of a Chicoreus. In the Bahamas and 
West Indies it often attains a much larger size and is more or less perfectly four-variced, and has the 
appearance of a true Phyllonotus. 
Murex micromeris Dali. Plate 53, fig. 17. 
Murex micromeris Dali, Trans. Wagner Inst., hi, p. 141, pi. 12, fig. 12, 1890. 
Shell small, with a somewhat elevated spire and a rather short canal, with about seven varices, 
and alternately larger and smaller revolving ridges; whorls about six; aperture ovate, canal slightly 
reflexed, rather open, bases of the former canals showing distinctly; inner lip scarcely elevated; outer 
lip lirate within. Color salmon red. 
Length, 5.5; diam., 3 mm. 
Boqueron Bay, Porto Rico, one shell. 
The relationships of this little species are somewhat doubtful. The spire is more elevated and is 
larger in proportion to the size of the body whorl than is the case in most species of Phyllonotus, and 
the edge of the inner lip is appressed to the last whorl instead of being elevated as it generally is in 
that subgenus. 
Subgenus Favartia Jousseaume, 1880. 
Shell small, with from four to eight varices and a series of revolving ridges; surface rasp-like, 
covered with longitudinal ribs, which are vaulted on the ridges, and which form pits in their interstices; 
canal short, recurved. 
Murex cellulosus Conrad. 
Murex cdlulosa Conrad, Proc. Acad. Nat. Sci. Phila., in, p.25,1846. 
Murex nuceus Morch, Cat. Kierulf, p. 14, pi. I, fig. 9, 1850. 
Shell with about seven whorls, the first one and a half smooth, the others with from six to eight 
varices, and covered with revolving ridges; in some cases the space between the longitudinal ribs is 
nearly smooth, there being a series of deep pits at each side of this smooth space; in other cases the 
revolving ribs are continuous. The longitudinal frills characteristic of the subgenus may be faint or 
excessively developed; these frills are strongest on the longitudinal ribs. Often they form a series of 
square pits where they cross the spaces between the ribs. The aperture is exactly elliptical; the canal 
is moderately short, reflexed, and nearly closed; the former canals stand out with great distinctness; 
the inner lip is generally somewhat raised. Whitish or brownish, sometimes banded with brown. 
Length, 20; diameter, 10 mm. 
Mayaguez, Porto Rico, one very tine shell and one young specimen. 
Murex intermedius C. B. Adams. 
? Murex alveatus Kiener, Icon., Murex, pi. 46, fig. 2. 
Murex intermedius C. B. Adams, Cont. to Conch., 1850, p. 60. 
Shell somewhat elongated, ovate fusiform, with about six or seven varices; the whorls are often 
more or less shouldered and are covered with a series of strong revolving ridges. Throughout the shell 
