ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 669 
Agaronia testacea, WV. Nassa collaria, V. ; ambigua, Mont., teste 
Rhizocheilus madreporarum. 2 living Hanl., N. [Probably imported from 
sp. on coral, J. W.L.} 
Columbella uncinata,/J. ; humerosa,n.s., | Anachis coronata, V.; Californica, J. 
R.; varians, var., V. [PImported from | Muricidea alveata, J. 
Sandw. Is. } Phyllonotus brassica, NV. 
The following species are part of a collection received at the Smithsonian 
Inst. from Real Llejos, and fill up gaps which existed in the Central Ameri- 
can fauna at the time of the first Report :— 
Discina Cumingii. Ceecum liratocinctum. 
Trigona Hindsii. Czecum lieve. 
Hemicardium oboyale. Cerithium interruptum, yar. 
Crassatella gibbosa. Barleeia subtenuis. 
Kellia suborbicularis. Arvicia punctulata. 
Barbatia mutabilis, Terebra strigata. 
Noétia reversa. Cerithiopsis assimilata. 
Axinea Pmulticostata. Triforis alternata. 
Fissurella rugosa. Olivella gracilis. 
Phasianella perforata, PNitidella millepunctata. 
Omphalius viridulus. Northia pristis. 
Hipponyx barbatus. Pisania sanguinolenta. 
The collections received at the Smithsonian Inst. from Panama consist, in the 
main, of species already tabulated from that region. The following, however, 
are new to that well-searched portion of the fauna ;— 
Tellina striata (teste Cuming), Rowell, Pease. 
Tellina (Angulus) amplectans, n.s., Rowell, Pease. 
Adula stylina. Californian species: either ballast or error in num- 
Pecten equisulcatus, jun. bering: Rowell. 
Litorina. Small spotted species, n.s., teste Cuming, but appears identical 
with the W. Indian: probably imported: Rowell, 
Fluminicola, sp., Rowell. 
Drillia albolaqueata, n.s., Rowell. 
Natica catenata, Rowell. 
Cuma costata, Rowell. 
115. The Pulmonates of the Pacific slope have not formed a special study 
with the writer of this Report, as they were already in the abler hands of 
Messrs. Binney, Bland, and other eminent Transatlantic naturalists. The 
opinions of Mr. Binney as to synonymy, &c., with descriptions of new 
species and details of those previously known, were given in papers pub- 
lished in the ‘ Proc. Ac. Nat. Sc. Phil.’ as follows:—* Descriptions of American 
Land Shells,’’ Feb. 1857; ‘Notes on American Land Shells,” Oct. 1857, 
May 1858, Noy. 1858, July 1859: and also in the ‘ Proc. Bost. N. H. 8.,’ 
“‘ Description of two supposed new species of American Land Shells,” Apr. 
1857. These are embodied in ‘ The Terrestrial Air-Breathing Molluscs of the 
United States and the adjacent Territories of North America,’ vol. iv., by 
W. G. Binney, Boston, 1859. It was first printed in the ‘ Boston Journal 
of Natural History,’ vol. vii., and is intended as a Supplement to the great 
treatise by his father, vols. i—iii., on the same subject. It is impossible to 
speak in too high terms of commendation of the manner in which this work 
has been prepared and executed, and of the beautiful figures drawn by Otto 
Kohler. The more matured views of the author were embodied in the 
‘ Check-List of the Terrestrial Gasteropoda of North America,’ published by 
the Smithsonian Inst., June 1860, of which a second edition was soon issued. 
The species were divided into three series,—(1) those of the Pacific coast, 
