624 SUMMARY OF CUllRENT EESEARCHES RELATING TO 



of a patient who died of malicrnant tumour. The occurrence of a strange 

 blastula-like stage before schizogony led Hartmann to call the parasite 

 Blastosporidium. He regarded it as a Haplosporidian, but noted its 

 affinities with Phycomycetes. It seems, however, that the parasite was 

 described in America as giving rise to skin tumours, and was shown by 

 Montgomery to produce a filamentous fungus. It was named Coccidioides 

 immitis by Stiles, and this name must stand. Its fungus nature (Phyco- 

 mycetes) is admitted, and it is suggested that other alleged Haplosporidia 

 will turn out to be Phycomycetes. 



Uradiophora cuenoti.* — L. Mercier describes this Gregarine from 

 the intestine of the fresh-water prawn, Atyaephyra desmaresti Millet. 

 It is a polycystid Gregarine, with prococious conjugation, without any 

 intracellular stage, with cysts without sporoducts. The "satellite" 

 attached to the end of the " primite " bears a characteristic atrophic 

 appendix at the end of the deuteromite. The primary nucleus of the 

 cyst formed by conjugation divides by mitosis, and the sex-nuclei also 

 arise by successive mitoses. There is distinct, but very slight, aniso- 

 gamy. The position of Uradiophora cuenoti is in the family Clepsi- 

 drinidfe. 



Parasitic Protozoa in Larval Crane-fly. f — Doris L. Mackinnon 

 repoits on two small forms of Entamwha and on six Flagellates in the 

 gut of the larvae of Tipula oleracea. The Flagellates are forms of 

 T'richomasfix, Polymastix, Hexamitus, and Embadomonas. One of the 

 two species oi Embadomonas is described as^. ahxeieffii sp. n. Attention 

 is directed to the " ribs " which run almost from end to end of Poly- 

 mastix, and have received various interpretations. It is probable that 

 Frl. Hamburger's interpretation is correct, that they are thickening ridges 

 of the pellicle. 



Chlamydozoa in Protozoa and in Cancer. | — A. Alexeieff has 

 observed in an amoeba {Lecythiiim ?) and in a Flagellate {Tetramitus 

 rostratiis Perty), a parasite which should be referred to the Chlamydozoa 

 of Prowazek. He proposes to call it Chlamydozoon biltschlii sp. n. His 

 observations convince bin*, of its parasitic nature, which has been denied 

 for some of these extremely minute structures. It could not, of course, 

 be due to leucocytes, nor could it be interpreted as the result of cellular 

 degeneration. In eleven cases of cancer he has found a similar body, 

 which he believes to be the parasite of cancer, which he calls Chlamydo- 

 zoon per nicio sum. It shows the stages characteristic of a Chlamydozoon -. 

 (1) the initial corpuscle ; (2) the division of its central granules ; (3) 

 the appearance of elementary corpuscles ; and (4) their multiplication. 



* Arch. Zool. Exp^r., x. (1912) pp. 177-202 (2 pis.). 



t Parasitology, v. (1912) pp. 175-89 (27 figs.). 



X Arch. Zool. Exp6r., x. (1912) Notes et Revue No. 5, pp. ci-cx (.3 figs.). 



