322 SUMMARY OF CURRENT RESEARCHES RELATING TO 



from an amphibious tortoise, Nicoria trijuga ; (4) a related form from 

 Tropidonotus piscator. They also make some notes on Trypanosomes 

 and Filarias. 



Haematozoa from Partridge and Turkey.* — A. Laveran and Lucet 

 describe from the Hungarian partridge (Perdix cinerea) a parasite which 

 seems to be Hmmamwba relicta, known to pass part of its life-history in 

 the mosquito. In the white blood corpuscles of turkeys (which died of 

 perityphlo-hepatitis) they found a new species which they name Hcvma- 

 mmba smithi. 



Babesia.f — Max Liihe discusses this blood-parasite ( = Piroplasma 

 Patton, 1895) which occurs in two forms — a pear-shaped form within, 

 and an amoeboid form on the surface of the erythrocytes. It is probable 

 that the former are gametocytes, the latter asexual stages. 



Affinities of Haplosporidia.l — M. Caullery and Felix Mesnil give 

 the results of researches upon the families Haplosporidiidse, Bertramiidas, 

 Ccelosporidiidag, and other forms of both doubtful and certain affinity 

 with the Haplosporidia. They conclude that the families reviewed 

 should be classed in a special order of the Neosporidia. In the general 

 simplicity of their development and the simple structure of their spores 

 there is some ground for placing them at the base of the Sporozoa, at 

 least of the Sporozoa endosporea. They show affinity with the Plas- 

 modiophoreae. 



Haemosporidia of Bats.§ — A. Schingareff has endeavoured, without 

 much success, to throw light upon the life-history of the three known 

 species of Hcemosporidia in bats. Experiments with mosquitos were 

 unsuccessful in producing infection, and it is thought that the carrier 

 may be Nycteribia, an insect which feeds on the blood of the bats. 

 Nothing, however, in any way resembling sporocysts, such as are found 

 in infected mosquitos, were found in sections of the gut of Nycteribia, 

 and the question of infection thus remains open. 



Life- History of Pleistophora periplanetse, Lutz and Splendore.|| — 

 W. S. Perrin gives an outline of the life-history of this Myxosporidian, 

 which infests the Malphigian tubules and intestine of Periplaneta 

 orientalis. There are two very definite phases : a trophic, characterised 

 by an almost excessive multiplication leading to auto-infection, and a 

 propagative phase, characterised by a cessation of trophic activity and 

 the formation of resting spores. In these features it resembles Thelo- 

 hania mulleri, and by no means agrees with Schaudinn's grouping of the 

 Sporozoa into Telosporidia and Neosporidia in terms of the period at 

 which sporulation occurs. This grouping is probably well-grounded, but 

 must be expressed in other terms. Another point of interest in this 

 life-history is afforded by the existence of residuary nuclei and proto- 

 plasm, which die off while sporulation is taking place. A fuller paper 



* Comptes Eendus, cxli. (1905) pp. 673-6. 

 t Zool. Anzeig.,xxx. (1906) pp. 45-52. 

 t Arch. Zool. Exper., iv. (1905) pp. 101-81 (3 pis.). 



§ Mikrobiol. Ges. St. Petersburg, 1905. See also Centralbl. Bakt. Parasit., 

 xxxviii. (1906) pp. 12-13. 



|| Proc. Cambridge Phil. Soc., xiii. (1906) pp. 204-8. 



