448 Dr. J. W. Gregory—A Revision 
Proboscina Davidsoni, Haime, 1854, op. cit. p. 167, pl. vi. fig. 11. 
Proboscina Buchi, Haime, 1854, op. cit. p. 168, pl. vii. fig. 10. 
Stomatopora (P.) Davidsoni, Vine, 1884, 4th Rep. Foss. Polyz., Rep. 
Brit. Assoc. 1883, p. 186. 
Diagnosis.—Zoarium formed of fairly regular, anastomosing 
bands, composed usually of from four to six zocecia. Hach 
branch in section appears as a rounded ridge. 
Zoecia regularly cylindrical. 
Peristomes usually in regular transverse lines, slightly 
raised. Zocecia of medium length. 
Formula*.—p s lr=1 0 2 4/7. 
Distribution.—Great Oolite and Inferior Oolite: England. 
Bathonian of France and Germany ; Bajocian, France. 
2. Proboscina Jacquoti, Haime, 1854. 
Proboscina Jacquoti, Haime, 1854, Bry. Jur., Mém, Soc. géol. France, 
sér, 2, t. v. p. 169, pl. vii. figs. 5a, 6. 
Reptotubigera Jacquoti, Terquem, 1855, Pal. dép. Moselle (sep. copy), 
28 
Proboscina Jacquoti, Brauns, 1879, Bry. mitt. Jura, Metz, Zeit. deut. 
geol. Ges. Bd. xxxi. p. 524. 
Stomatopora (P.) Jacquoti, Vine, 1884, 4th Rep. Foss. Polyz., Rep. 
Brit. Assoc. 1883, p. 186. 
Proboscina thrapstonensis, Vine, 1893, Polyz. Thrapston, Proc. Yorksh. 
Geol. Soe. vol. xii. p. 257, pl. xii. fig. 6. 
Proboscina ornata, id. ibid. p. 257, pl. xiii. fig. 10. 
Diagnosis.—Zoarium consisting of two or more flabellate 
expansions arising from a narrow stolon-like band of zocecia. 
Zoweia long, cylindrical, irregularly placed. In the typical 
form from one to five zocecia in each branch. In some forms 
(var. expansa) spreading out into multiserial Berenicea-like 
sheets, which are fenestrate. 
Formula.—2 0 3 1/12. 
Distribution.—England: Cornbrash. Foreign: Bajocian, 
France, Germany. 
3. Proboscina Desoudini (Haime), 1854. 
Stomatopora Desoudini, Haime, 1854, Jur. Bry., Mém. Soe. géol. France, 
sér. 2, t. v. p. 165, pl. vi. figs. 5 a, b. 
Diagnosis.—Zoarium very irregular; composed of narrow 
bands anastomosing to an irregular network, each band from 
one to three zocecia in width. 
Zoecia narrow, of medium length, often slightly sinuous ; 
* The formule are the same as those used for Stomatopora (Ann. 
vol. xv. p. 227), except that the last term indicates the number of zocecia 
ina branch, 
