270 C. M Maplestone. 



Claviporella bicornis, n. sp. (PL XXXVIII., Fig. 11). 



Ooecium elongated, irregularly oval. Ooecial opening large, 

 curved distally ; proximal margin denticulate. On each side of 

 the ooecial opening there is a large, thick, spinous process, the 

 left one straight, the right-hand one curved. Below the ooecial 

 opening on each side is a short cylindrical adnate process, with 

 a truncated end, the right-hand one the longer. Zooecia un- 

 known. 



Locality. — Campbell's Point. (J. F. Mulder.) 



This is a very peculiar form owing to the presence of the 

 large spinous process on each side of the ooecial opening, similar, 

 but much larger in proportion, to those on the ooecia of 67. 

 aurita and CI. geminata (recent species). The short truncate 

 processes below the ooecial opening are peculiar to it, they are 

 possibly avicularian. The denticulation on the proximal margin 

 of the ooecial opening may possibly be caused by the fracture 

 of the frontal wall of the ooecium, but the inner edges of the 

 denticles have 2.3 acute points, whereas if it had been caused by 

 fracture the edges would most probably have been straight, or 

 nearly so. The irregular fiat curved process on the distal end 

 may be a portion of the matrix of the deposit, and not actually 

 belonging to the specimen. 



Claviporella airensis, n. sp. (PL XXXVIIL, Fig. 12. 



Zooecia irregularly cuneate ; below the thyrostome is a small 

 elongated, vertical slit or pore. Thyrostome arched above ; a 

 deep rounded sinus in the proximal margin. Ooecium globose, 

 smooth, with faint lines radiating from the ooecial opening, 

 which is of the same shape as the thyrostomes, but larger, and 

 loftier in proportion. 



Locality. — Aire coastal beds (Dr. Hall). 



A single internode composed of three zooecia, and an ooecium ; 

 the zooecium proximal to the ooecium is apparently double as 

 there are two pores on the raised front wall, but, as there 

 is no thyrostome to either portion, it probably represents two 

 imperfectly developed zooecia. This is near CI. longicollis 

 McG., but in this species there is only a small slit in the place 

 of the larger depressed banded area in that species. 



