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94 American Seashells
Haliotis kamtschatkana Jonas Japanese Abalone
Japan, southern Alaska to Point Conception, California.
Plate 2e
4 to 6 inches in length, elongate, with a fairly high spire. 4 to 5 holes
open which have raised edges. Outside of shell rudely corrugated, but a few
specimens may have weak, spiral cords. This is a small species, uncommon
in California, but increasingly abundant northward.
Haliotis pourtalesi Dall Pourtales' Abalone
Off the Lower Florida Keys.
% to I inch in length, elongate, with 22 to 27 wavy, spiral cords. Out-
side waxy yellow to light-brown with a few irregular patches of reddish
orange. A light-orange band runs from each hole to the edge of the shell.
Inside pearly-white. A very rare species, and the only one recorded from our
eastern coast. It has been dredged from 6^ to 200 fathoms. Beware of young
specimens from other oceans labeled as this species.
Fmnily FISSURELLIDAE
(Keyhole Limpets)
Subjamily EMARGINULINAE
Key to the Genera of Emarginulinae
a. Apex at the same level as the base of the shell:
b. With an internal septum Zeidora
bb. Without internal septum Nesta
aa. Apex above the base of the shell:
c. Slit at anterior edge Emarginula
cc. Slit at anterior middle:
d. Funnel around slit on inside Fiincuirella
dd. No funnel around slit Rimula
Genus Ewarginula Lamarck 1801
Emargifiula phrixodes Dall Ruffled Rimula
Off North Carolina to eastern Florida and the West Indies.
Plate 17-0
Vz inch in length, thin but strong, and with a small, narrow slit on the
anterior slope of the shell near the margin. Base oval. Color translucent-
white. Interior glossy. Concentric cords and 20 to 24 radial ribs cross each