1823 T. Say in Long's Exped. to Rocky Mts. II. 331 Genus Pseudostoma... Cheek-pouches exterior to the mouth; incisors naked, truncated.

1852 S. F. Baird Let. 14 May in W. H. Dall Spencer Fullerton Baird (1915) vii. 277 The little quadrupeds promise nicely. The one with white stripe on tail and long hind leg is the Dipodomys, a Californian form. The coyote [sic] with cheek pouches is a Pseudostoma.

2004 L. Warren Constantine Samuel Rafinesque ii. 30 Say had created a new genus Pseudostoma in which he had placed the plains pocket gopher, but Rafinesque..had previously assigned it to the genus Geomys.

1890 Cent. Dict. Pseudostomine, having external cheek-pouches, as a pocket-rat or pocket-mouse; saccomyine.

1874 E. Klein in Proc. Royal Soc. 22 135 Between [the pleural cavity]..and the cavities of those sinuses a free communication exists by means of true stomata... The relation between the cells of the membrana propria of the pleura pulmonum and the endothelium of the surface is similar to that..in other serous membranes, the cells of the propria throwing out processes, which project between the endothelial elements of the free surface, thus forming pseudostomata.

1891 Amer. Naturalist 25 831 The presence of ‘pseudostomata’ in the splanchnic epithelium., the function of which remains unsettled.

1896 New Sydenham Soc. Lexicon Pseudostoma,... Also, the oral opening of an Echinoderm larva (echinopædium).

1912 Bryologist 15 74 In the lesser number of pores in the outer cells of stem, as well as of pseudostomata in the wall of the capsule these species approach more closely those of the other subgenus.

1996 Amer. Jrnl. Bot. 83 1248 Pseudostomata occur as pores that extend from upper surface to lower surface.

1874 Proc. Royal Soc. 1873–4 22 141 The most active transformation of the pseudostomatous tissue of the bronchi into adenoid tissue..was in rabbits suffering from chronic pyæmia.