14 Mr. S. V. Wood^s Catalogue of the Zoophytes from the Crag. 



attached hemispherical body, consisting of a congeries of tubes 

 radiating from a common centre. This increases cyhndrically 

 and branches ; a longitudinal section then displays the tubes, 

 arising at the first centrally with a vertical direction, but afterwards 

 bending suddenly at nearly a right angle to reach the exterior ; 

 a transverse section would consequently divide the tubes through- 

 out a portion of their extent longitudinally, while in the centre 

 of the branch it would cut them transversely. The tubes are 

 subpolygonal with circular openings, many of which are nearly 

 closed, owing probably to the more extended lives of some of the 

 polypes. 



This polypidom attains a height of several inches. 



Cor. Crag. Red Crag. Recent. 



2, Heteropora septosa (var. a. polymorpha ; var. /3. pustulosa). 

 Sudbourn. | . , | Britain. 



Polypid. boletiform, irregular, sometimes investing; pores irregular. 



One fossil specimen invests an Emarginula, and corresponds 

 with a recent British species in my possession upon an Area 

 lactea. 



Var. (i. is globose and pustuliform ; pores irregular, large and 

 small, subpolygonal ; a section shows rows of tubes long and straight, 

 with transverse partitions like those in Chcetetes. 



1. Diastopora meandrina, n. s. 



Sutton. I I 



Polypid. globosely foliaceous ; foliations anastomosing or meander- 

 ing with two layers of opposite cells ; cells tubular, slightly raised, or 

 rather strongly inclining towards the plane of axis, irregularly quin- 

 cunxial ; aperture orbicular ; surface granular ; radius one inch and 

 a half. 



Sect. a. adnate. 

 Cor. Crag. Red Crag. Recent. 



1. Tubulipora obelia, Johnston (Brit. Zooph. p. 269. t. 30. f. 7, 8). 



Sudbourn. | Sutton. | Britain. 



2. — patina, id, {Brit. Zooph. p. 267. t. 30. f. 1—3). 



Sudbourn. | Sutton. | Britain. 



3. — serpens, id. (Brit. Zooph. p. 268. t. 30. f.4— 6). 



Sudbourn. | | Britain. 



4. — palmata, n. s. 



Sudbourn. | Sutton. | 

 Polypid. adnate, divergent ; branches enlarging, palmate, truncate ; 

 surface rugose, porous, with numerous dwarfish tubular cells, in- 

 creasing in number (as it diverges) from one or two to seven or eight. 

 Extent of polypidom three- eighths of an inch. 



5. — repens, n. s. 



Sutton. I Sutton. | 

 Polypid. adherent by a narrow base, linear, dichotomously or irre- 



