383 



male Rotifer has been described by Ebrenberg under the name of 

 Enteo'oplaea hi/datina, as he was not aware of its sex. Its internal 

 structure is like Asplauchna p7'iodonta ^. 



Mr. G. T. Harris : Chirocephcdus dia^yhamcs. A fresh-water 

 Entomostracon (Phyllopod) taken in the New Forest last year. 

 This form is very rare in this country ; in fact, it was supposed to 

 be extinct. Lantern slide from photograph of individual taken 

 in fluid. 



Mr. H. Morland : Gomphonema acuminatum var. coi'onatay 

 from Crane Pond, Mass., U.S.A., showing frustule and valves. 

 Found also in several other New England fresh-water deposits. 



Mr. A. E. Hilton : Section of Inflorescence of the Common Fig, 

 Ficus ca7'ica, showing pistillate flowers containing ovules. 



April 18th, 1902. 



Mr. C. J. H. Sidwell : Transverse section of developing Radicle 

 of Barley, Hordeum vidgare, showing the disposition of the cells to 

 form the plerome, periblem, root-cap, etc. Stained borax-carmine. 



Mi*, a. Earland : C ymhalopora bidloides d'Orb. Typical bottom 

 specimens from Challenger Station 185, and small surface 

 specimens from a shore gathering at Corny Point, Hardwicke 

 Bay, South Australia, showing arrangement of chambers, balloon, 

 float, and tube. 



Mr. D. J. Scourfield : Peratacantha truncata, a representative 

 of the Entomostracan family Lynceidae. The curious teeth on 

 the anterior ventral shell-margin seem to be enlarged basal 

 portions of the ordinary fringing hairs, and may possibly be used 

 for scraping surfaces of weeds, etc., and so securing small dia- 

 toms for food. The use of the teeth on the posterior shell- 

 margin is quite unknown. 



Messrs. R. and J. Beck : Examples^ of H. J. Grayson's fine 

 rulings on glass, 50, 55, and 60 thousand to the inch. 



May 2nd, 1902. 



Mr. H. Morland : Entopyla Australis Ehr., from deposit at San 

 Redondo, California, showing "front" and "side" views of 

 valves, also difference between the upper and lower valves. 



