46 SUMMARY OF CURRENT RESEARCHES RELATING TO 



longing to the families Medusettidae (e.g. Medusetta inflata, Euphysetta 

 rara) ; Circoporidae (e.g. Circoporus oxy acanthus, Gircogonia (?) longi- 

 spina) ; and Tuscaroridae (e.g. Tuscarusa glolosd). 



Lamblia intestinalis Fatal to Rabbits.* — Prof. Perroncito finds 

 that this Flagellate (with many synonyms, — Cercomonas intestinalis, 

 Megastoma intestinale, &c), common in man and in the rat, as a para- 

 site on the epithelial cells of the duodenum and elsewhere, causing 

 obstinate constipation followed by profuse diarrhoea, is a frequently fatal 

 parasite of rabbits, resulting in a mortality whose cause was previously 

 unknown. 



New Species of Chilodon.f — Th. Moroff describes Chilodon cyprini 

 sp. n., which lives on the skin and gills of diseased carp, though it is 

 not itself the cause of the disease. It seems nearly allied to Ch. 

 megalotrocha} Stokes, parasitic on certain Rotifers. 



Parasites of an Asiatic Tortoise.f — A. Laveran and F. Mesnil 

 found in Damonia reevesii, two Haemogregarines (Hcemogregarina 

 stephanoiviana sp. n. and H. rara sp. n.), Trypanosoma damonia} sp. n. 

 in the blood, Coccidium mitrarium sp. n. in the gut — a form remark- 

 able in having an extra-cellular life, and the Myxosporidian Myxidium 

 danilewskyi in the kidneys, where it also occurs in Emys lutaria. 



Trypanosomas from Transvaal Cattle.§ — A. Laveran gives a fuller 

 account of Trypanosoma theileri, a parasite discovered by Theiler, a 

 veterinarian at Pretoria, as has been previously noticed. The parasite 

 is widespread in South Africa, causing Galziekte or bile-disease in cattle. 

 Theiler has also sent to Laveran preparations of ox -blood, which reveal 

 another species, Tr. transvaaliense sp. n. It seems quite distinct, e.g. in 

 the close proximity of the centrosome to the nucleus. It remains to be 

 seen whether it is restricted to Bovidae as the other species is. 



Hsematozoa in Marine Fishes. || — A. Laveran and F. Mesnil have 

 shown that some marine fishes are often infected with Haamatozoa. 

 They note the occurrence of Trypanosoma rajce sp. n. in three species of 

 skate ; of Tr. scylliumi sp. n. in Scyllium stellare ; of Hcemogregarina 

 delagei sp. n. in two species of skate. A large number of bony fishes 

 were examined, but Haamogregarines were found only in the sole and in 

 blennies, and Trypanosoma only in the sole, and that very rarely. 



* Bull. Soo. Zool. France, xxvii. (1902) pp. 151-5 (1 fig.). 



t Zool. Anzeig., xxxvi. (1902) pp. 5-8 (3 figs.). 



j Comptes Rendus, cxxxv. (1902) pp. 609-14 (13 figs.). 



§ Tom. cit., pp. 717-21 (5 figs.). || Tom. cit, pp. 567-70. 



— I e^a I m 



