ZOOLOGY AND BOTANY, MICKOSCOPY, ETC. 315 



New Cephaline Gregarine. — D. Keilin {Parasitology, 1918, 10, 

 406-410, 1 pL, 1 tig.) describes Leidijana tinei sp. n., from tlie mid-gut 

 of the larvEe of the moth Emlrosis fenestrella found in the nests of the 

 house-martin. An account is given of the small trophozoites, the 

 full-grown sporonts, the cyst formation, and the spores. The main 

 characters of the genus are the solitary sporont, the simple subspherical 

 epimerite, the dehiscence by sporoducts, and the barrel-shaped spores. 

 The difference between the new species and the two already known are 

 detailed. This seems to be the first record of a Gregarine as a parasite 

 in Lepidoptera. J. A. T. 



Foraminiferal and Nullipore Structures in some Tertiary Lime- 

 stones from New Guinea. — R. Bullen Newton {Geol. Mag., 1918, 

 Decade 6, 5, No. 5, 203-12, pis. viii-ix). The rolled Limestone pebbles 

 collected in the upper reaches of the Fly River, New Guinea, prove, on 

 examination by sectioning, to represent two distinct horizons. Apart 

 from the confirmation afforded by the corals, the presence of Alveolina 

 and the closely related Lacazina unchmanni Schlumberger, in association 

 with characteristic Miliolines, are sufficient to identify some of the Lime- 

 stones with the Lutetian or Middle Eocene, contemporary with our 

 Bracklesham beds. The striking similarity between sections of the 

 New Guinea pebbles and the well-known " Mixen " rock of Selsey, is 

 referred to by the author and confirmed by his photos. It will be of 

 great interest if subsequent discoveries of more suitable material result 

 in the discovery of Gydoloculina and other forms typical of the Selsey 

 beds. 



The identification of the remaining pebbles as Miocene is mainly 

 dependent on the occurrence of the calcareous alga LitJiothamniiim 

 ramosiasimimim (Reuss), typical of that formation, and especially of its 

 later horizons. In the absence of any specimens of Lepidocyclina, the 

 Foraminifera recorded are not very convincing, but the author considers 

 that the pebbles may probably be referred to the Aquitanian or older 

 Miocene. E. Heron-Allen & A. Earland. 



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