54 



Strickland (C)- Short Key to the Identification of the Larvae of the 

 Common Anopheline Mosquitos of the Malay Peninsula. — Kuala 

 Lumpur, 1915, 18 pp., 7 plates. [Received 27th January 1916.] 



A key is given to the full-grown larvae of Malayan Anophelines, 

 based on the characters of the clj'peal and palmate hairs, and of the 

 antennae. 



Shircore (J. 0.). A Note on some Helminthic Diseases, with special 

 reference to the House-fly as a natural carrier of the Ova. — 



Parasitology, Cambridge, viii, no. 3, January 1916, pp. 239 243. 



Examination at Mombasa of local natives who complained of 

 intestinal troubles showed evidence of helminthiasis in 83 per cent, of 

 the cases investigated. Ova of the follo^\'ing parasitic worms were 

 found : — Ankyhstoma duodenale, Ascaris lumh'icoides, Tricliocephalus 

 dispar, Taenia saginatu, Schistosomiim mansoni, Oxyuris vermicularis 

 and Stroiigyloides stercoralis. Flies from one of the wards of the native 

 hospital, in which a number of cases of helminthiasis were contracted, 

 were examined. Ten out of 100 flies contained ova of T. dispar, 

 T. sa^inata or A. duodeymJe ; of 100 flies caught in the police lines, 

 11 harboured ova, and of 25 caught in the meat market two contained 

 ova. These captures were made at mid-day ; in captures made at 

 6.30 a.m. in the bazaar and in the hospital no eggs w^ere found. The 

 females contained ova more frequently than the males. Although 

 human faeces showed a high infection \vith A. duodenale and A. lum- 

 bricoides, the ova of these species were found in flies on very few 

 occasions. The eggs of T. disjiar and T. saginata, although less com- 

 mon in human faeces, were comparatively abundant in the flies. 

 The order of frequency of ova in the flies was : — T. dispar 16, T. saginata 

 8, A. duodenale 5, A. lumbricoides I, and S. mansoni 1. The small 

 number of eggs of A. lumhicoides found in the flies was probably due 

 to their large size. The ova of T. dispar appeared able to withstand 

 putrefaction in dead flies for nearly two months. 



Strickland (C). Considerations regarding an Outbreak of Malaria at 

 Morib, Federated Malay States. — Parasitology, Cambridge, viii, 

 no. 3, January 1916, pp. 249-254. 



Investigation into the nature and causes of a recent outbreak of 

 malaria at Morib, Federated Malay States, has shown that the w^hole 

 population is subject to fever, and the fact that childrenof the stationary 

 population suffer and present signs of chronic disease proves almost 

 conclusively that the fever is endemic there. Five species of Anopheles 

 were captured, viz., A. ludlowi, A. rossi, A. umbrosus, A. sinensis, and 

 A. tessellatus ; of which A. ludlowi, A. umbrosus and A. sinensis are 

 known to be carriers of malaria in the Andamans, India and Borneo. 

 From a record of captures and dissections, it is probable that most 

 of the fever at Morib was due to A. ludlowi, and slightly to A. umbrosus ; 

 A. rossi and A. sinensis were probably negligible factors. 



The outbreak shows the great practical importance of obtaining 

 an exact comparative infectivity table of the various Anophelines. 

 At Morib, the statement that A. ludlowi was the cause of the fever is 



