Three boxes of ores from various localities, presented by Dr. Trask. Mr. Lorquin presented a number of land shells collected on the Philippine Islands by Mr. Lorquin, senior. A box of shells from the Smithsonian Institution.
Donations to the Library:
Verslagen en Mededeelingen der Koninklijke Akademie van Wetenschappen; Afdeeling Naturkunde, Parts 10-14, 1860-1862; Same, Afdeeling Letterkunde, Parts 5-6, 1860-1862; Jaarboek van de Koninklijke Akademie van Wetenschappen te Amsterdam, 1859, 1860, 1861; Proceedings of the Royal Horticultural Society, Vol. iii, Nos. 1-4, Jan. to April, 1863; Nachrichten von der Georg-Augusts-Universität und der Königl. Gesells. der Wissenschaften zu Göttingen, 1862, Nr. 1-27.
The above were received through the Smithsonian Institution.
Dr. Cooper read the following paper:
On New or Rare Mollusca Inhabiting the Coast of California.—No. II.
BY J. G. COOPER, M.D.
The following species were collected while exploring for the State Geological Survey, along the main land and islands bordering Santa Barbara channel, in May, June, and July last. Besides those described as new, I obtained additional specimens of some of those described in 1862, confirming the specific characters then given, and to some extent establishing the generic more accurately.
Careful notes and drawings from living specimens furnish the basis of most of the descriptions, together with examination of the specimens in alcohol.
With regard to localities, it must be noticed that “Santa Barbara” and “Santa Barbara Island” are very distinct both in local characteristics and the groups of animals inhabiting them. The island is about seventy-five miles from the town, and thirty-five from the nearest main land. Catalina Island is twenty-four miles from the main land, and very different in its molluscous animals from both the main land and the other islands, being the richest locality on our shores.