FOEAMINIFERA OF THE ATLANTIC OCEAN. 29 



Kongl. Svensk. Vet. Akad. Handl., vol. 19, No. 4, 1882, p. 90, pi. 6, 

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 pi. 69, fig. 1. — Rhumbler, in Brandt, Nordisches Plankton, Heft 14, 



1900, p. 27, figs. 27-30.— Chapman, Journ. Linn. Soc. Zool., vol. 28, 



1901, p. 404.— MiLLETT, Journ. Roy. Micr. Soc, 1903, p. 690.— Chap- 

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Description. — Test in its early development consisting of a series 

 of Glohigerina-like chambers, the adult developing a globular cham- 

 ber about this early Glohigerina-like portion; surface usually finely 

 reticulate, with a small pit at the bottom of each reticulation and 

 one larger circular aperture forming the main opening into the 

 interior; in the living condition the surface develops long spines 

 from its exterior. 



Diameter up to 1 mm. 



