36 



found on an elephant. The human tick, Omithodorus moubata, has 

 been found in large numbers in piggeries, though relapsing fever 

 has not yet been recorded in the neighbourhood. 



RouBAUD (E.). Les Porcins et la Conservation des Ectoparasites 

 humains, dans les regions chaudes. [Pigs and the Perpetuation of 

 Human Ectoparasites in Hot CUmates.]— -BuW. ^Soc. Path. ExoL, 

 Paris, ix, no. 10, 1916, pp. 768-771. 



In the account of his observations on Auchmeromyia, the author 

 pointed out the curious relations that exist in regard to the Calli- 

 phorine blood-sucking larvae between man and certain hairless 

 mammals of the burrowing type such as Phacochaerus and Oryderopus 

 [see this Review, Ser. B, iii, p. 98]. A recent paper by Koubaud 

 and Bouet has shown that species of Choeromyia are not confined 

 in the adult stage to the burrows of their hosts, but that they may 

 also frequent human habitations, presumably for the purpose of 

 oviposition [see this Review, Ser. B, iv, p. 101]. In Khodesia the 

 tick, Omithodorus moubata, which transmits relapsing fever to man, 

 has been found in the burrows of the wart-hog, far from any native 

 habitation [see this Revieiv, Ser. B, iv, p. 44], and in the Belgian 

 Lower Congo the same tick has been observed in piggeries (see above). 

 O. turicata, Duges, is known to attack both man and pigs in Mexico. 

 The occurrence of Dermatophilus penetrans, L., on pigs as secondary- 

 hosts should also be noticed in this connection. The role of the pig 

 as preferred secondary host of parasites hable to attack man can 

 also be verified in the case of blood-sucking Diptera. In the 

 island of Principe Glossina palpalis attacks wild pigs in large numbers 

 and follows the herds about in their migrations. 



It is, therefore, probable that many other normal or occasional 

 parasites of man find in pigs, either domestic or wild, their preferred 

 secondary hosts, and vice versa. While investigating the transmission 

 of exanthematous typhus, NoUer discovered that the pig-louse can 

 live for a long time on man, while lice from human clothing can 

 maintain Hfe for more than seven days on pigs. All these facts lead 

 to the conclusion that pigs are of all animals the most closely related 

 to man in regard to the possibilities of parasite nutrition. To this 

 list must also be added the intestinal worms and blood parasites 

 that the pig harbours, which may be transmitted to man. The 

 latter fact has already been established in the case of certain patho- 

 genic trypanosomes such as T. dimorphon, T. pecaudi, T. rhodesiense, 

 etc. Further investigation of this subject would be valuable, and 

 attention should certainly be given to the hairless mammals, the 

 pig in particular, as liable to maintain, in common with man, a 

 number of parasites which are probable carriers of tropical diseases. 



Sergent (E.) & Alary (A.)- Petite Epid^mie d'Acariose en Alg^rie. 

 [A shght Epidemic of Acariasis in Algeria.]— £mW. Sac. Path. 

 Exot., Paris, k, no. 10, 1916, pp. 771-773. 



The irritation produced by Pediculoides ventricosus, an Acarid 

 infesting barley, caused a shght epidemic in Algeria in the autumn 

 of 1916, both Europeans and natives being attacked. The malady 



