ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 179 



rounded, oval, or pear-shaped forms, the result of fission of the ookinete 

 (? sporoblasts). Should the nymph bite, these are capable of develop- 

 ment in the dog, but within the nymph during its metamorphosis there 

 is a further division into bodies resembling the dog piroplasma (? sporo- 

 zoites), which appear in the salivary cells of the adult. Thus the 

 salivary cells of the nymph and of the adult are stocked, each with a 

 distinct stage of the organism. 



Hsematozoa of Bat.* — T. Bowhill records the occurrence in 

 Acanthia pipistrelli Jenyns, in South Africa of lx)th intra- and extra- 

 corpuscular blood parasites. The former were observed to be coarsely 

 pigmented, and appeared to resemble those described by Dionisi in 

 Italian bats. The extra-corpuscular forms were trypanosoma-like in 

 structure ; in one there appeared to be both a long and a short flagellum. 



Protozoa of Mosquitos in India. t — Ronald Ross gives a summary 

 of various protozoa observed by him in mosquitos in India. In parti- 

 cular he calls attention to Ghrithklia, which occurs in the gut of Gulex 

 fatigans, and suggests that these may have been the trypanosoma-like 

 bodies observed by Schaudinn in Culex plpiens, and which the latter 

 regarded as a stage in the life-history of the Halteridium of Athene 

 noctim. The author doubts the theory that the Hsemosporidia are 

 specifically connected with the Trypanosomes and Spirochetes, and 

 suggests that the inquiry into this matter should be renewed. 



Protozoan Parasite of Leucocytes. | — P. N. Gerrard and C. M. 

 Wenyon give an account of a protozoon infesting the polymorpho- 

 nuclear leucocytes of a dog at Krian, in the Federated Malay States. It 

 occurred within a cyst, and is probably identical with that discovered by 

 Bentley in dogs in Assam. It appears to be nearly related to the 

 H fern ogregarines . 



Herpetomonas Parasites in Pleas. § — Andrew Balfour gives a brief 

 account of various phases of a Herpetomonas-Y^kQ parasite in the gut of 

 Pulex Cleopatra. Roths. They were found in both sexes, and in fleas, 

 which had fed on blood infected with Hamogregariiia balfouri Laveran, 

 and also in examples which had not so fed. Rosette, vermicule, and 

 trypanosoma-like forms were observed. 



Parasitology of Sudan.]] — Andrew Balfour, in an important report, 

 deals with the parasitology of the Sudan. An account is given of 

 exterminating mosquito work, and along with it records of new genera 

 and species. As regards the malaria parasites, the quartan form is 

 recorded as occurring with considerable frequency, but is less common 

 than the other two forms. Tsetse flies, both Glossma morsitans and 

 G. palpalis, are reported for Sudan teiTitory, the former from Southern 

 Kordofan and the latter in large numbers to the south-east of Mvolo. 

 In this connection a Commission has been appointed to investigate the 

 possibiHty of the extension of sleeping sickness into Sudan territory. 



• Journ. Hygiene, vi. (1906) pp. 246-7 (1 pl.)- 



t Tom. cit., pp. 96-7, 101-9. % Tom. cit., pp. 229-36 (1 pi. and 1 fig.). 



§ Tom. cit., pp. 652-5 (1 pi.). 



II Second Report, Wellcome Research Laboratories, Gordon Memorial College, 

 Khartoum, 1906, 255 pp. 



N 2 



