Rhetic Foraminifera from Somerset. 315 
5. Haplophragmium emaciatum, Brady. 
(Pl. XI. fig. 6.) 
Haplophragmium emaciatum, Brady, 1884, Chall. Rep. vol. ix. p. 505, 
pl. xxxiil. figs. 26-28; Heeusler, 1890, Abhandl. Schweiz. palon- 
togr. Gesellsch. vol. xvii. p. 87, pl. iv. figs. 8-10. 
Dr. Heusler has found this species in the Upper Jurassic 
beds of Switzerland, and it has also occurred in the Lower 
Greensand of Guildford*. It is represented in recent 
soundings from the West Indies and the Arabian Sea, and is 
found at moderate depths. 
One specimen of H. emactatum was found in bed no. 2 of 
the Rheetic series at Wedmore. 
6. Haplophragmium neocomianum, Chapman. 
(Plex Lies 7.) 
Haplophragmium neocomianum, Chapman, Quart. Journ. Geol. Soe. 
vol. 1. (1894) p. 695, pl. xxxiv. figs. 2 a, b. 
In the Rhetic washings innumerable thin brown platy 
aggregates occur with more or less regular outlines. On 
rendering these transparent by immersion in Canada balsam 
or turpentine, their foraminiferal nature is easily recognized. 
The septation of the test is seen to be perfectly regular in 
many specimens, and the commencing involute spiral can also 
be made out. ‘These obscure organisms differ in no essential 
character from the Neocomian specimens of the Lower Green- 
sand in the neighbourhood of Dorking, and, like them, these 
Rheetic examples are always of a ferruginous-brown colour. 
H. neocomianum occurs in the Rhetic clays of Wedmore, 
in bed no. 2, rare; no. 3, frequent; no. 4, very abundant ; 
no. 5, very abundant; no. 6, frequent. 
Subfamily Trocuamurnine. 
Ammopiscus, Reuss, 1861. 
7. Ammodiscus incertus (d’Orbigny). 
(Pl. XI. figs. 8, 9.) 
Opereulina incerta, VOrbigny, 1889, Foram. Cuba, p. 49, pl. vi. 
figs. 16, 17. 
Orbis infimus, Strickland, 1848, Quart. Journ. Geol. Soe, vol. ii. p. 30, 
fig. a. 
Involutina silicea, Terquem, 1862, Mém. Acad. Imp. Metz for 1861- 
1862, p. 450, pl. vi. fig. 11 (Deuxiéme Mém. Foram. du Lias). 
* Chapman, Quart. Journ. Geol. Soc. vol. 1. (1804) p. 694. 
