34 U.S. NATIONAL MUSEUM BULLETIN 287 



arizonensis, Epiphragmophora 1896, PUSNM, vol. 18, no. 1033, p. 



1 (banks of Santa Cruz River, near Tucson, Arizona); 1897, 



PUSNM, vol. 19, no. 1111, p. 337, pi. 31, figs. 11, 12. 

 armifera, Corbula (Anisothyris) 1898, TWFIS, vol. 3, pt. 4, p. 840. 



New name for [Coi-bula] cari)iata Conrad, not Phillips. 

 armilda, Tiirris (Surcula) 1908, BMCZ, vol. 43, no. 6, pp. 213, 262 



(ALBATROSS sta. 3017, off Cape Lobos, Gulf of California; 



USNM 110601). 

 armilla, Venericardia (Cyclocardia) 1903, PANSP, vol. 54, pt. 4, 



pp. 704, 713 (USFC stas. 2399, 2400, 2407, Gulf of Mexico; 



USNM 93370); 1903, PUSNM, vol. 26, no. 1342, p. 951, pi. 62, 



fig. 6. 

 arnheimi, Epiphragmophora 1896, PUSNM, vol. 18, no. 1033, p. 6; 



[introduced for Arionta calif or niensis ramentosa Gould, small 



variety, Binney, 1885] ; (Nachoguero Valley, California; San 



Pablo [California] ; USNM 39612). 

 arnheimi, Macoma inquinata 1916, CSWM, p. 36, n.n.; 1916, 



PUSNM, vol. 52, no. 2183, p. 414 (Kodiak Island, Alaska; USNM 



122537). 

 arnheimi, Tonicia 1903, N, vol. 17, no. 4, p. 37 (Noyes Cove, 



Narborough Island, Galapagos). 

 arnoldi, Cancellaria 1909, USGSPP 59, p. 29, pi. 14, fig. 7 



(Pliocene, San Diego, California; USNM 135038). 

 arnoldi, Columbella (Anachis) 1908, PUSNM, vol. 34, no. 1610, p. 



250. New name for Columbella (Anachis) minima Arnold, 1903, 



not Tenison-Woods, 1878. 

 arnoldi, Epitonium 1917, PUSNM, vol. 53, no. 2217, p. 475 (San 



Pedro, California; USNM 106875). 

 arnoldi, Mactra (Spisula) 1922, AJS, ser. 5, vol. 4, no. 22, p. 310. 



New name for Tivela crassatelloides (Conrad) Reagan, 1909, and 



Mactra albaria Arnold, 1910, not Conrad. 

 arnoldi Dall and Bartsch, Turhonilla (Pyrgolampros) 1903, 



MCAS, vol. 3, p. 279, pi. 1, fig. 7 (Pliocene, Deadman Island 



[California]); 1905, Schuchert, Dall et al, USNMB 53, pt. 1, p. 



673 (USNM 160194). 

 arsinoe, Crassispira 1919, PUSNM, vol. 56, no. 2288, p. 26, pi. 6, 



fig. 4 (Bartolome Bay, Lower California; USNM 56135). 

 arteaga Dall and Bartsch, Mangilia 1910, MCDM 14-N, p. 11, pi. 2, 



fig. 4 (Barkley Sound, Vancouver Island, British Columbia). 

 artemidis, Diplodonta (FelanielUi) 1909, PUSNM, vol. 37, no. 



1704, pp. 156, 263, pi. 28, fig. 8 (Capon, Peru; USNM 207758). 

 Arthuria 'Carpenter' Dall, 1879, SREA, art. 4, p. 80; 1879, 



PUSNM, vol. 1, no. 48, p. 298, n.n.; 1882, PUSNM, vol. 4, no. 



228, pp. 284, 287. Type-species by original designation: Arthuria 



filosa Carpenter. 



