文档介绍：V ^
SMITHSONIAN INSTITUTION
UNITED STATES NATIONAL MUSEUM
PROCEEDINGS
OF THE
UNITED STATES NATIONAL MUSEUM
VOLUME 39
WASHINGTON
GOVERNMENT PRINTING OFFICE
1911
—
THE RECENT AND FOSSIL MOLLUSKS OF THE GENUS
ALABINA FROM THE WEST COAST OF AMERICA.
By Paul Bartsch,
Assistant Curator, Division of Mollusks, U. S. National Museum.
The first record that we find for Alabina on the west coast of
America was made by Dr. P. P. Carpenter in the Report for the
British Association for the Advancement of Science for 1863, pub-
hshed in 1864. Here he writes (page 612) that Mesalia tenui-
sculpta, n. s., occurs in shoal water at San Diego, and on page 655
'
of the same report he adds, ' Mesalia tenuisculpta, n. s. Very small,
slender, whirls rounded, lip waved, shoal water San Diego, Cp."
(Cooper). This description is further supplemented by him in 1866
in the Proceedings of the California Academy of Natural Sciences,
volume 3, page 216, where he gives a detailed description of the species
and queries its position in the genus Mesalia by placing a question
mark before it.
In the last paper (page 219) Doctor Carpenter also described
Styliferina turrita, which is now referred to Alahina.
In 1894 Mr. Henry Hemphill published a description of EulimeUa
occidentalis in the fourth volume of Zoe (page 395). A fourth spe-
cies was described by Doctor Dall and myself in the Nautilus, volume
15 (pages 58 and 59), in 1901 under the name of Bittium (ElacMsta)
californicum.
Since the last was described a very large number of shell dredg-
ings made by the U. S. Bureau of Fisheries steamer Albatross have
been examined, which have yielded quite a number of additional
species. Considerable work has also been done on the Tertiary
faunas of the west coast, and these too have returned some inter-
esting new forms, all of which are here described and figured."
« In the preparation of the present diagnoses the following terminology is used:
"A