N. mendica. Holotype in USNM No. 5727; 20.4 x 10.0 X 9.4 mm. Brown in colour, with 12 axial ribs on the penultimate and 12 ribs on the body whorl, penult whorl with 6 spiral cords. On label is "Straits of Fuca. W. coast Nth. America" (= Strait of Juan de Fuca, Washington State).

N. cooperi. Two syntypes in B.M.N.H. No. 1855.4.5.13.; illustrated syntype 16.7 X 8.3 X 7.6 mm. Nine axial ribs on penultimate and 8 ribs on the body whorl, penult whorl with 5 spiral cords. Sandwich Islands 1= Hawaiian Is) = error. Probably on the coast between San Diego and Magdalena Bay, where most of the material of the "Herald" and "Pandora" was collected.

N. woodwardi. Holotype in B.M.N.H.; 11.4 x 6.2 X 5.2 mm. This is the same form as ihe typical N. mendicus. Sandwich Islands [= Hawaiian Is] = error. Probably on coast between San Diego and Magdalena Bay.

The ecophenotypic variant N. cooperi is usually considered as a subspecies, variety or form of N. mendicus. The form cooperi has fewer, more angulate and wider spaced axial ribs, more shouldered whorls and consequently an angulate outer lip, and spiral cords on the lower half of the body whorl which are not nodulose. Both forms are sympatric and according to Demond occur together at many points along the Pacific coast between Washington State and San Diego, and according to Grant & Gale, integrades are frequent. In some Indo-Pacific species the range of variation is often greater than in N. mendicus, and sometimes as many as 5 distinct forms can be recognised on the basis of form, sculpture and colour.

Shell small, rather light, elongated, ovate-turreted, dull brown, becoming ash-colored when dry, longitudinally undate-plicate, spirally encircled with raised threads, with equal interspaces, about seven on the penultimate whorl, the depressed portions darker than the raised. Spire elongate-conic, this form being continued nearly to the base. Whorls six or seven convex, the last a little more than half the length of the shell, ellipsoidal; constriction around the siphonal canal well-impressed; this groove broad, short, a little reflexed and somewhat contorted. Aperture small, not more than one-third the length of the shell, rounded-ovate; lip sharp and simple, having a series of about ten laminae within, not reaching the edge; pillar strongly arched, smooth, slightly invested with an ivory callus, the point projecting as far as the lip does anteriorly; fauces white, the siphonal notch tinted salmon-colored. Length, 4/5; breadth, 2/5 in. (Gould.)
TYPE in Boston Society of Natural History. Type locality, Nisqually, Port Discovery, Puget Sound.
RANGE. Kodiak Island, Alaska, to Magdalena Bay, Lower California.