VINE : POLYZOA OF THE LOWER AND UPPER GREENSAND. 265 
There are present on one of the smaller examples of Radiolites 
Mortoni several colonies of a Proboscina species, which, if not 
identical, are closely related to /. ramom, D'Orb., less so with 
Idmonea cenomana, of the same author. Fig. 8 appears to be 
the top part of one of the branches. Reuss describes and figures a 
form somewhat similar to the Greensand example, Proboscina graciles, 
Reuss, but I cannot compare the British form so favourably with 
Reuss's as with D'Orbigny's figures. 
Habitat : On Radolites Mortoni. 
Horizon : Cambridge Greensand. 
Proboscina ramosa, D'Orb., is from Mans; Cenomanien. 
Lonsdale's example, Diastopora ramosa, from the Upper Chalk. 
14. Proboscina angustata, D'Orb. 
1850. Idmonea angustata, D'Orb., Terr. Cret., p. 852, pi. 632, 
figs. 7-9. 
1852. Proboscina angustata, D'Orb., Ibid. 
1872. Proboscina angustata, Reuss, Bryoz. &c. des Planers, p. 113, 
tab. 28, figs. 3-4. 
1885. Stomatopora gracilis, M. Ed. (?) Vine, Camb. Gr. Pap., p. 4, 
pi. ii., fig. 7. 
1 had only one example of this species, and that a poor one, but 
a re-exaraination of the form induces me to locate it here rather than 
leave it, even doubtfully, with Milne Edwards' S. gracilis. D'Orbigny's 
figure represents the species as having two rows of cells in the whole 
of the branches, but Reuss figures his example as partly uni serial 
(fig. 3), and partly biserial (fig. 4), in this respect the ''Planers'" 
example resembles the British. 
Horizon : Phosphate Beds, Cambridge. 
Locality: Proboscina angustata, D'Orb., is from Mans, and is 
found in company with P. ramosa, and P. dilatata, D'Orb. 
15. Diastopora cretacea. Vine. 
1883-4. Brit. Association Report. Fossil Polyzoa . 
1885. Camb. Greensand Paper. (Op. Cit.), p. 9. 
An example similar to the one originally described from the 
* ,Die Bryoz. des untereu Quadere, 1872, p, lly, pi. 28, figs. 6-9. 
