96 



Arkwright (J. A.) & Bacot (A.). A Bacillary Infection of the Copu- 



latory Apparatus of Pedicnlus Jmmanus. — Parasitology, Cambridge, 

 xiii, no. 1, March 1921, pp. 25-26. 



During observations made on the association of Rickettsia with 

 trench fever [R. A.E., B, vii, 146], a bacillary infection of the excreta 

 and gut of lice {Pediculus JiMmanus) was noticed. Subsequent experi- 

 ments, here described, show this organism to be a parasite of the 

 copulatory apparatus of P. humanus, for which the name Bacillus 

 pedicidi is suggested. 



Arkwright (J. A.), Atkix (E. E.) & Bacot (A.). An Hereditary 

 Rickettsia-Yike Parasite of the Bed Bug [Cimex lectidarins).— 

 Parasitology. Cambridge, xiii, no. 1, March 1921, pp. 27-36, 2 

 plates. 



A new parasite discovered in the gut of Cimex lectidarius has been 

 tentatively named Rickettsia lectnlaria. The hereditary character, 

 cultivation and development of this parasite are described, and the 

 known species of Rickettsia are reviewed. Cimex hinmdinis is also 

 parasitised by an organism that may prove to be a hereditary 

 infection. 



HoARE (C. A.). Some Observations and Experiments on Insect 

 Flagellates, with special Reference to artificial Infection of Verte- 

 brates. — Parasitology, Cambridge, xiii, no. 1, March 1921, pp. 67-85. 



The relation of Crithidia melophagi, Flu, to the sheep trypanosome 

 Trypanosoma melophagi is discussed [cf. R.A.E., B, viii, 45]. Attempts 

 to infect mice artificially with Crithidia melophagi from Melophagiis 

 ovimis, Herpetomonas jacidum from Nepa cinerea, and H. calliphorae 

 from Calliphora sp., proved negative. The flagellates also proved non- 

 pathogenic to fish {Caster ostetis aculeatus), both when administered as 

 food and when inoculated. Although the experiments here described do 

 not disprove those of Laveran and his collaborators, they show that 

 further study is required before general conclusions as to the pathogenicity 

 of insect flagellates and their relation to leishmaniasis can be formed. 



Riley (W. A.). An annotated List of the Animal Parasites of Foxes.— 



Parasitology, Cambridge, xiii, no. 1, March 1921, pp. 86-96. 



This list of parasites of foxes has been compiled in view of the 

 rapidly growing importance of breeding foxes for their fur, especially 

 in North America and Japan. 



The Arthropod parasites recorded are : — Acarids, Demodex folli- 

 cidoriim, Sim., Sarcoptes scabiei vulpis, Fiirst., and Dermanyssits 

 gallinae, De G. ; Ixodids, Amblyomma americanum, 'L.,A. tttberculatmn, 

 Marx, Dermacentor variabilis, Say, Haemaphysalis bispinosa intermedia, 

 Warb. & Nutt., H. cinnabarina punctata, C. & F., H. inermis, Bir., 

 H. leachi. Aud., Ixodes canisitga, Johnst., I. hexagonus, Leach, /. 

 marxi. Banks, /. ricinus, L., and Rhipicephalus sanguineus, Latr. ; 

 Mallophaga, Trichodectes quadraticeps, Chapm., and T. vulpis, Denny ; 

 Siphonaptera, Pulex irritans, L., P. pallidus, Tasch., Ctenocephalus 

 canis, Curt., Ceratophyllus metis. Walk., and Chaetopsylla vulpe^, 

 Motsh. 



