18 Mr. G. R. Vine on a Species o/Entalophora. 



the fossil with well-known types of Entalophora from other 

 localities, such as the Lower Greensand or Faringdon species, 

 but I cannot identify it as belonging to any of our British 

 types. Certainly we have in our rocks a form which I have 

 previously recognized as E. gracilis^ Goldf."^, but the identifi- 

 cation is founded upon the well-known figure of Goldfuss. In 

 Hagenow's Maestricht Bryozoa the author figures forms of 

 Ceriopora gracilis^ Goldf., which he names Escliarites gracilis 

 and E. distans. The characters of the cells and the arrange- 

 ment of the same are different in the two figures ; but in the 

 Lincolnshire fossils both the features of the figures of Hage- 

 now are combined in one of the specimens at least — the cell- 

 arrangement at the bottom part of the stem like E. gracilis, 

 while the top part is like E. distans. There is also a striking 

 resemblance between the Lincolnshire fossil and examples of 

 Entalophora cenomana, d'Orb., from Mans. I shall therefore 

 characterize the British examples as follows : — 



Entalopliora gracilis, Goldf., var. ? 



Zoarium branching, stem about one eighth of an inch in 

 thickness, but the width increases slightly at the node. 

 Zocecia near the base arranged rather evenly in circlets ; but 

 on the upper part of the stem they are very irregular and 

 distant. Cells certainly tubular, but the front or area is 

 flattened, giving to the fossil a very peculiar or Eschaj^a-like 

 feature, and coarsely punctate. Orifice orbicular, semiorbi- 

 cular, or oval, produced or depressed, but with a thick peristome. 

 Closure unique (?). 

 Horizon. Neocomian. 



Locality. Donington-on-Bain, Lincolnshire. 

 The closure of this peculiar fossil is very distinct and of 

 two types : — 1st, closure in the throat of the tube, that is to 

 say a little distance from the perfect and extended peristome, 

 as already noticed by Mr. Waters in his description of species ; 

 2nd, a closure over a similar position in the tube, but where 

 the front wall of the cell is curved inwards and covering the 

 whole throat of the tube. In the latter case there is no elon- 

 gation of the tube on the front side, but on the back the tube 

 is prolonged beyond the closure. Both of these features appear 

 to be normal and characteristic of certain cells, and the calca- 

 reous lids in both cases are punctate, but without any central 

 or other opening than those referred to. I cannot find any 

 enlarged cells in my specimens, and I therefore suppose that 

 the function of these closed cells is for reproductive purposes. 



* 4th B. A. Rep. Fossil Polyzoa, 1883. (Goldf. tab. x. fig. 11.) 



