PEOBOSCINA. 
45 
7. Proboscina cornucopiae (d’Orbigny), 1851. 
Stxonxaiy. 
Idmonea cornucopue, d’Orbigny, 1851. Bry. Cret. pi. 634, figs. 7-9. 
Froboscina ,, 
d’Orbigny, 1854. Ibid. p. 855. 
Bucaille, 1890. Bry. Cret. Seine-Inf. : Bull. Soc. Sci. nat. 
Rouen, vol. xxv. p. 510. 
pars. Vine, 1893. Cret. Polyz. : Rep. Brit. Assoc. 1892, 
p. 307. 
- >> 
var. eximia, 1893. Cret. Polyz. : Rep. Brit. Assoc. 1892, 
p. 307. 
Stomatopora ,, 
Pergens, 1890. Revision, p. 331. 
5? >> 
Pergens, 1895. Bry. Arche de Leves : Bull. Soc. beige 
Geol. vol. viii. p. 132. 
Idmonea echimrum, d’Orbigny, 1851. Bry. Cret. pi. 633, figs. 11-13. 
Froboscina subclavata, Reuss, 1872. Palaeontogr. vol. xx. pt. 1, p. 113, pi. xxviii. 
fig. 5. 
Tubuliporachathamensis,pars,Y'me, 1893. Cret. Pol : Rep. Brit. Assoc. 1892, 
p. 308, Xo. 14. 
Feptotubigera ramosa, pars, Vine, 1893. Ibid. pp. 308, 329. 
,, ,, var. irregularis, Vine, 1893. Ibid. pp. 308, 329. 
Diagnosis. 
Zoarium composed of from two to four multiserial branches, 
each of which is comparatively short, and expands more or 
less rapidly in width. The branches may be at first lanceolate 
and then suddenly expand, or they may expand uniformly 
from the beginning. The branches may subdivide. 
Zooecia long, narrow, cylindrical, and crowded. 
Peristomes well raised. The apertures are irregularly distributed, 
and very crowded. 
Gonocysts ovoid ; of medium size. 
Dimensions. 
D’Orbigny’s type 
B.M. 
B.M. 
{fide Pergens). 
D. 485. 
D. 440. 
Distance of apertures ... 
•24-*3 mm. 
•3--5 mm. 
.. •3-‘5 mm. 
Diameter of zooecia ... 
•08--1 ,, 
•1-*12„ 
.. -1--16 „ 
Diameter of aperture . . . 
•04 „ 
•06 „ 
.. -06--1 „ 
Disteibution. 
England : 
Middle Chalk : 
Chatham. 
