CORNUSPIRA INVOLVENS. 131 



CornuspirsB with surface-ornamentation. 



1. Type — -folia cea. 



Coenuspiea steiolata, Brady, 1884. 'Challenger' Report, p. 202, pi. cxiii, 



figs. 18, 19. 



In Operculina plicata, Czjzek, 1848, ' Haiding. Abhandl.,' vol. ii, p. 146, pi. xiii, 

 figs. 12, 13, the surface-markings seem to be merely lines of growth. 



2. Type — Reussi. 



Opebculina caeinata, Costa, 1856. Atti Accad. Pontaniana, vol. vii, fasc. 2, 



pi. xvii, fig. 15. 

 Coenuspiea Bobnemanni, Reuss, 1863. Sitz. k. Akad. Wiss., vol. xlviii, Abth. 1, 



p. 39, pi. i, fig. 3. 



— caeinata, Brady, 1884. ' Challenger ' Eeport, p. 201, pi. xi, fig. 4. 



— — Sherborn and Chapman, 1889. Journ. R. Micr. Soc. for 



1889, p. 484, pi. xi, fig. 6. 



— — Foriiasini, 1893. Mem. R. Accad. Sci. Istit. Bologna, 



ser. 5, vol. iii, p. 431, pi. i, fig. 5. 



— — Eqger, 1893. Abhandl. k. Bayer. Akad. Wiss., vol. xviii, 



Abth. II, p. 247, pi. iii, figs. 16, 17. 



3. Type — polygyra. 



Coenuspiea CEASST8EPTA, Brady, 1884. 'Challenger' Report, p. 202, pi. cxiii, 



fig 20. 



— — Eqger, 1893. Abhandl. k. Bayer. Akad. Wiss., vol. xviii, 



Abth. IT, p. 246, pi. iii, fig. 22. 



4. Type — involvens. 



Coenuspiea lacunosa, Brady, 1884. 'Challenger' Report, p. 202, pi. cxiii, 



fie. 21. 



In the foot-note at page 1 of Part I of this Monograph Reuss's Gomuspira 

 cretacea was referred to Trochammina perhaps on insufficient grounds. It 

 appears to comprise two, if not three, forms of Gomuspira, thus : 



IS 



