206 U.S. NATIONAL MUSEUM BULLETIN 287 



microforis. Helix (Polygyra) auriculata 1885, PUSNM, vol. 8, no. 



519, p. 263 (Johnson's Sink, Alachua County, Florida). 

 microforis, Liotia variabilis 1889, BMCZ, vol. 18, p. 390 (BLAKE 



sta. 36, off Cuba; and others). 



microforis, Niso 1927, PUSNM, vol. 70, art. 18, no. 2667, pp. 5, 68 



(off Georgia; USNM 108374). 

 Microfusus 1916, PBSW, vol. 29, p. 8. Type-species by original 



designation: Chrysodomus acutispiratus Sowerby. 

 Microgaza 1881, BMCZ, vol. 9, no. 2, p. 50. Type-species by 



monotypy: Microgaza rotella Dall. 

 Microglyphis 1902, PUSNM, vol. 24, no. 1264, p. 512. Type-species 



by original designation: Actaeoii curtulus Dall. 

 microgonia, Marginella 1889, USNMB 37, p. 108, n.u.; 1927, 



PUSNM, vol. 20, art. 18, no. 2667, pp. 4, 45 (off Georgia and 



Fernandina [Florida]; USNM 107975). 

 microgrammata, Anomia 1898, TWFIS, vol. 3, pt. 4, p. 783, pi. 35, 



fig. 11 (Oligocene, Chipola River, Florida; and others); 1905, 



Schuchert, Dall et al, USNMB 53, pt. 1, p. 51 (Oligocene, near 



Baileys Ferry, Chipola River, Florida; USNM 114824); 1915, 



USNMB 90, p. 126, pi. 23, fig. 6. 

 microgrammata, Liotia 1927, PUSNM, vol. 70, art. 19, no. 2668, p. 



5 (ALBATROSS sta. 2339, off Havana [Cuba] ; USNM 333713). 

 Micromactra 1894, N, vol. 8, no. 4, p. 40. Type-species by 



monotypy: Mactra ( Mactrotoma) californica Conrad. 

 micromeris, Cythara 1903, TWFIS, vol. 3, pt. 6, p. 1633, pi. 60, fig. 



16 [name and figure only] (Pliocene, Shell Creek, Florida); 1905, 



Schuchert, Dall et al, USNMB 53, pt. 1, p. 209 (USNM 163993). 

 micromeris, Murex (Chicoreus?) 1890, TWFIS, vol. 3, pt. 1, p. 141, 



pi. 12, fig. 12 (Caloosahatchie Pliocene [Florida] ; living, Jamaica 



and St. Thomas); 1901, Dall and Simpson, BUSFC, vol. 20, pt. 1, 



p. 408, pi. 53, fig. 17; 1905, Schuchert, Dall et al, USNMB 53, pt. 



1, p. 420 (Pliocene, Caloosahatchie River, near Fort Thompson, 



Florida; USNM 112164). 

 Micropiliscus 1927, PUSNM, vol. 70, art. 18, no. 2667, p. 130. 



Type-species by original designation: Solar iella co)tstricta Dall. 

 microrhina, Cuspidaria rostrata 1886, BMCZ, vol. 12, no. 6, p. 295 



(USFC stas. 2659, 2660, off Cape Canaveral [Florida]); 1889 



BMCZ, vol. 18, p. 440, pi. 40, figs. 2, 3. 

 microscelida, Pleurotoma (Drillia) 1895, PUSNM, vol. 17, no. 1032, 



p. 677 (ALBATROSS sta. 3475, off Hawaiian Islands; USNM 



127122). 

 microscopica, Cancellaria (Trigonostoma?) 1889, BMCZ, vol. 18, 



pp. 12, 131 (Campeche Bank off Yucatan [Mexico] ; and others); 



[as Admete microscopica] 1902, PUSNM, vol. 24, no. 1264, p. 



