Manchester Memoirs, Vol. Ixii. (19 17) 25 



ing ones, divisions between the chambers not visible externally. 

 Texture, coarsely arenaceous. Diam. .65 to 1 mm. 



Beyond describing this species as resembling a much 

 thickened variety of Hantken's H. acutidorsatum there is very 

 little to be said about it. It is rather rare, occurring chiefly in 

 the beds exposed at low water at the end of the sea-wall. 



(We must confess that we can make very little of Halk- 

 yard's specimens, and the species must be accepted on the 

 evidence of his description and the figures on the plate. The 

 septation is very obscure and the fractured sections render any 

 definite identification of a spiral arrangement of the chambers 

 almost impossible. We should have inclined almost to the 

 opinion that the chambers were arranged in a linear series, 

 thus making it an isomorph of Lingulina carinata d'Orb., but 

 Halkyard probably worked out his diagnosis by means of 

 destruction of other specimens not now available for examin- 

 ation.) 



44. Haplophragmium calcareum, Brady. 



H aplo phragmium calcareum, Brady, 1884, Chall. Rep., vol. IX, 

 p. 302, pi. XXXIII, figs. 5-12. 



Rare and found only in one gathering, viz., in sandy light- 

 coloured marl from the top of the Cliff at a spot about 200 yds. 

 south of the villa l'Ermitage. Brady notes this species from 

 six of the "Challenger" stations, five of which are in tropical 

 seas. I ought to remark that my specimens are more arena- 

 ceous in texture than Brady's, and the recent specimens in my 

 own collection, but this variation in texture may arise from 

 decomposition of the calcareous cementing" substance. 



(The specimens appear to us to be quite characteristic and 

 there is no doubt as to Halkyard's identification.) 



Genus Haplostiche, Reuss. 

 45. Haplostiche soldanii, (Jones & Parker). 



Lituola soldanii, Jones & Parker, i860, Quart. Journ. Geol. 



Soc, vol. XVI, p. 307, No. 184. 

 Haplostiche soldanii, Brady, 1884, Chall. Rep., p. 318, pi. 



XXXII, figs. 12-18. 



This form does not occur frequently in the Marl and is 

 rather small and slender in form. It was only by making 



