278 FLEAS, FLUKES AND CUCKOOS 



jBaker, J. R. (1955 personal communication: part in press). The blood 



protozoa of British birds. 

 I Buxton, P. A. (1955). The Natural History of Tsetse Flies, 816 pp., 47 pis., 



London. 

 Coles, A. C. (19 14). Blood parasites found in mammals, birds and fishes 



in England. Parasitology, 7 .• ly. 

 Hewitt, R. (1940). Bird Malaria. Amer. Hygiene Monogr. Ser. No. 15. 



Baltimore. 

 Huff, Clay G. and Coulston, Frederick. (1944). The development of 



Plasjiiodium gallinaceum from sporozoite to erythrocytic trophozoite. 



J. Infect. Dis. 75 : 231-249. 

 James, S. P. and Tate, P. (1938). Exo-erythrocytic schizogony in Plas- 

 modium gallinaceum Brumpt. 1935. Parasitology, 30: 128-ijg. 

 James, S. P. (1939). The incidence of exo-erythrocytic schizogony in 



Plasmodium gallinaceum in relation to the mode of infection. Trans. 



Roy. Soc. Trop. Med. and Hyg. 32 : jS^-yGg. 

 Kudo, R. R. (1946). Protozoology. (3rd edition). Springfield, 111. 

 Shortt, H. E., Menon, K. P. and Seetharama Iyer, P. V. (1940). The 



forms of Plasmodiwn gallinaceum present in the incubation period of 



the infection. Ind. J. Med. Res. 28 : 2^3-2^6. 

 Wenyon, C. M. (1926). Protozoology. Vols. I and II. London. 



Chapter 10, Worms (Vermes) 



There is no textbook in the English language concerned with para- 

 sitic worms as a whole. Sprehn's Lehrbuch der Helminthologie, a German 

 publication, deals with all four main groups and is the best of its kind. 

 Various medical and veterinary helminthologies are however available, 

 several of which are written in English. The worms as a whole com- 

 prise an enormous group and it is preferable to consider the various 

 classes separately. Unfortunately no satisfactory classification of the 

 flukes has been compiled up to date. The tapeworms and roundworms 

 are admirably dealt with by Fuhrmann and the Chitwoods. Since 

 Meyer's monograph on the spiny-headed worms, van Cleave has 

 suggested a modified classification and the reader is advised to hunt up 

 his various papers on this group which have the advantage of being 

 written in English. Two lists of helminths by Baylis from British verte- 

 brates are very useful. One of the most urgent requirements in the 

 field of helminthology is a compilation describing the known life- 

 cycles of parasitic worms, together with lists of their intermediate hosts. 



