Shell depressly globose, crimson colored, minutely transversely striated, above rounded, below broadly open; lip expanded, semicircular; columella thick, dilated within, straight; aperture elongately sub-ovate; extremities broadly notched. The Genus Pedicularia was established by Swainson for the reception of a single species (_P. sicula_) of that author. During the past year another species has been added by that eminent Naturalist, G. P. Deshayes, of Paris. In a work published, on the shells of the Isle of Bourbon, he describes a beautiful violet-colored species under the name of _P. elegantissima_. The California species (of which only one specimen has been obtained) can scarcely be surpassed in brilliancy by its Indian Ocean congener, although bearing the exquisite name of _elegantissima_. For the specimen of the species here described, I am indebted to the extreme liberality of D. N. Robinson, Esq., of San Francisco, who obtained it from a coral growing on a monster crustacean of the genus _Echidnocerus_, which was taken in very deep water at the Farallones Islands. REGULAR MEETING, FEBRUARY 15TH, 1864. Vice-President Trask in the Chair. Present thirteen members. Messrs. A. Thyark and R. E. C. Stearns were elected resident members. Donations to the Cabinet: Coral, from the Aitutaka Islands, by Capt. Edwards. Botanical specimens from the White Mountains, N. H., by Dr. Cooper. Donations to the Library: Report of the Committee to prepare a plan for a State University. Journal of the Society of Arts and of the Institutions in Union, London, Eng. American Journal of Science and Arts for November, 1863. Mr. W. P. Blake exhibited specimens of Coal, said to have been found on the mountains east of the Colorado River, about twenty-five miles from La Paz. He stated that it was of very good quality and seemed too brilliant for surface coal, but that this might perhaps be attributed to the dryness of the climate. He had, however, doubts as to the occurrence of coal associated with obsidian, as was stated to be the case with these specimens. The publishing committee was authorized to furnish copies of the Proceedings for 1863 to certain libraries and journals in this State. REGULAR MEETING, MARCH 7TH, 1864. President in the Chair. Present twelve members; also Messrs. Turnbull, Smith, Gardiner, and Burgner, by invitation. Donation to the Cabinet: Stuffed skin of a large venomous Snake, from the Sierra Madre of Mexico, east of Mazatlan, presented by Mr. Burgner. Donations to the Library: Pamphlets on the North American Helicidæ, by Thomas Bland, extracted from the Annals of the N. Y. Lyceum of Natural History. American Journal of Science and Arts for January, 1864. Boston Journal of Natural History, Vol. VII, No. 4. Dr. Behr presented the following paper: On Californian Lepidoptera. No. IV. BY H. BEHR, M.D. FAM. VANESSIDÆ. GRAPTA.