ANTHRACOPUPA, GASTROCOPTA, 117 



A General System of Nature, etc., vol. 4, 1802, p. 520. He 

 referred to accounts of aculeata by Muller and Chemnitz. Cf. 

 Cockerell, Nautilus, vol. 40, July, 1926, p. 31. 



ANTHRACOPUPA (Vol. 27, p. 316). 



Add: AntJiracopupa hritannica L. R. Cox, Ann. Mag. Nat. 

 Hist. (9), vol. 18, 1926, p. 168. Carboniferous, Keele Beds, 

 Clent Hill, Worcestershire. 



Ptychospira deloplecta Slavik, Vol. 27, p. 264, is said to 

 be a scalariform shell of Planorhis declivis Al. Braun, which 

 Wenz ranks as a synonym of Gyraulus trochiformis applanatus 

 (Thomae). (Petrbok, Acad. Tcheque des Sciences, Bull. 

 Internat. XXVI, 1925, p. 192, figs. 4-6. 1926). Ptychospira 

 thus becomes a synonym of Gyraulus (Planorbidae). 



GASTROCOPTA Woll. (Vol. 24, p. 6). 

 Gastrocopta pellucida hordeacella (Pils.). PI. 22, fig. 7. 



Specimens from Mojave Mt., California, are long and cylin- 

 dric, with the lower-palatal fold of unusual length, and the 

 basal fold either small or wanting; crest obsolete. 



Length 2.6 mm., diam. 0.95 mm. 



Length 2.25 mm., diam. 0.9 mm. 



S. S. Berry has figured similar specimens from Palm Canyon, 

 San Gabriel Mts., California (Proc. A. N. S. Phila. 1922, p. 

 97, figs. 1-4). 



Gastrocopta v^olfii (Miller). Vol. 24, p. 94. 



Add to synonymy : [Pupilla] reihischi Dall, 1917, Proc. Biol. 

 Soc. "Washington, vol. 30, p. 10. Not Pupilla {Gastrocopta) 

 reihischi Dall, 1928, = G. munita hrunnea Pils. 



Gastrocopta ashmuni imperfecta Pils. & Ferr. 



The columellar lamella is simply curved within, and out- 

 wardly remains horizontal, as in G. cochisensis, not passing 

 into the position of an infraparietal lamella. Peristome more 

 or less free or continuous. The very large angulo-parietal 



