ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 285 



Spirocheetes in Phlebotomus perniciosus. — E. Pringault {Gomptes 

 Rendus Soc. Biol., 1921, 84, 209-10). Report of the abundant occur- 

 rence of Spirillum-forms in the intestine of this insect. The name 

 Spirochseta phhhotomi sp. n. is suggested. J. A. T. 



Parasitic Protozoa in African Gastropod. ^Froilaxo de Mello 

 {Gomptes Rendus Soc. Biol, 1921, 84, 241-2). In Paclielabra 

 mocsfa there were found the following parasites : — Gristispira pachelabrae 

 sp. n., a large Spiroch^t from the digestive gland : Herpefomonas 

 pachelabrse sp. n., from the intestine ; Adelea parhelahrse sp. n., a 

 C'occidian from the digestive gland and free in the intestine. J. A. T. 



Experiments on Verneuilina polystropha (Reuss). — ^^E. Heron- 

 Allen and A. Earland {Proc. R. Irish Acad., 1920, 35, 15;:}-77, 

 o pis.). An interesting and suggestive paper, finely illnstrated. The 

 normal T'. polystrophn. is a remarkably " constant " form, singularly free 

 from the variations and monstrosities which occur in ordinai-y circum- 

 stances among other Foraminifera. The species exhibits the phenomena 

 of dimorphism in {a) a long form, which is megalospheric, and (J)) a 

 sliort form, which is always microspheric. The primordial chamber of 

 the megalospheric form is sometimes divided into two by an internal 

 chitiuous septum. A short dwarf form sometimes occurs, which cannot 

 be confused with a young specimen. Experimental evidence is given 

 of the tendency of V. poJystropha to select and incorporate heavy 

 minerals among the normal siliceous sand grains. In a tank with a 

 mixture of ordinary sand and crushed gems a proportion of the 

 individuals had utilized gem-splinters of a size and shape utterly 

 disproportionate to the size of the tests. Another experimental result 

 nas the production of monsters in a tank with superlimed (hypertonic) 

 .sea water. It is argued that in a natural system of Foraminifera more 

 attention will have to be paid to processes of construction and habits of 

 growth and reproduction, and less to the material employed. J. A. T. 



Protozoan and other Parasites in Man. — E,. AV. Hegner and 

 W^ "\Y. CoRT {Diagnosis of Protozoa and Worms Parasitic in Man, 

 Baltimore, 1921, 72 pp., 8 pis.). The authors have done a very useful 

 piece of work in preparing a succinct synopsis of the Protozoa and 

 Worms parasitic in Man. Much of the new literature is scattered, and 

 text-books get quickly out of date as regards parasitology. The diagnoses 

 are short and clear ; the illustrations are good. J. A. T. 



New Gregarine from Sandhopper. — R. Poisson {Gomptes Rendus 

 Soc. BioJ., 1920, 33, lo96-8). In the intestine of Orchestia Uttorea 

 were found specimens of Didymophyes longissima Sieb. and of Gephalo'ido- 

 phora hrasili sp. n. The latter is intracellular in its young stages ; 

 when 20-25 fx. in length it emerges into the lumen. Solitary and syzygial 

 forms occur. The cysts are spherical, the spores likewise. There is a 

 general resemblance of the stages to those of G. talitri, but the dimen- 

 sions are smaller. J. A. T. 



Spore of Thelohania. — Helen L. M. Pixell Goodrich {Arch. 

 Zool. Exper., 1920, 59, 17-9, 2 figs.). From the teased muscle of a 



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