Admete rhyssa: Shell small, white, with an olivaceous periostracum, a loosely coiled (decorticated) nucleus, and about four subsequent whorls separated by a distinct suture; axial sculpture of (on the last whorl, a dozen) rather narrow, nearly vertical ribs, which extend from suture to suture on the spire and from the suture to the margin of the base in the last whorl, with wider interspaces; incremental lines rather marked; spiral sculpture of (on the spire, four; on the last whorl, eight) prominent threads with wider interspaces, overriding the ribs and coming to a node when they intersect them; the base nearly smooth except for one or two minor threads near the canal; aperture semilunate, the outer lip thin, body with a thin layer of enamel; pillar with three oblique plaits, canal shallow, short, with a faint fasciole. Height of shell, 7; of last whorl, 5; diameter, 4.5 mm. (Dall.)
TYPE in United States National Museum, No. 211241.

Shell elongate, slender, very elegant; with two nuclear whorls, quite large, strongly sloping, smooth, with covered apex; 5 swollen, above scarcely subangulate, with sutures strongly impressed; with 10 larger rotund radial costae, at the base obsolete, with wavy interstices; with a few spiral lirulae, somewhat distant, crossing gracefully over the ribs and interstices, in the rear 2 smaller, in the middle at first 3, afterward 6 more frequent, around the attenuated base six distant lines; aperture subquadrate, in front dilated; outer lip acute; inner lip inconspicuous; columella with 2 smaller oblique plications, inserted in front, like a tertiary fold, but scarcely emarginate.

Admete woodworthi: Shell small, thin, whitish, with a yellowish-brown periostracum, five normal, sculptured, and one smooth, turgid nuclear whorl, gradually in- , creasing, subtabulate by a prominent spiral thread at the shoulder while young, rounded at the last whorl, with 8 or 9 obscure riblets on the upper part of the spire, which are obsolete on the last whorl and a half; spiral. sculpture of rounded threads, with wider flattish, somewhat irregular interspaces ; periostome continuous with a slight notch or sulcus near the end of the nearly straight pillar, and with no umbilicus; there are two obscure plaits on the pillar, which is not marked by any umbilical chink or fissure; aperture with the external sculpture modifying the margin, but no lirations. Lon. of shell, 9; of aperture, 4; max. diam., 4.5 mm. (Dall.)

Admete rhyssa: Type locality, United States Bureau of Fisheries Station 4343, off South Coronado Island.
RANGE. Santa Rosa Island, California, to S. Coronado Island. Also Pleistocene.

Type locality, Santa Barbara, California, Post-Pliocene.
RANGE. Arctic Sea to San Diego, California. Fossil: Pleistocene of California.

Admete woodworthi: Type locality, Monterey Bay, in 10-45 fathoms.
RANGE. Monterey Bay, Santa Barbara Islands.