1000 REPORT OF THE HARVARD AFRICAN EXPEDITION 
of Kisantu by H. Vanderyst (1913, Rev. Zool. Afric., II, 2, pp. 167-170) and 
at Zambi (Roubaud and Van Saceghem, 1916, Bull. Soc. Path. Exot., Paris, 
IX,, p. 766). 
PULICIDAE 
A species of Xenopsylla was found at Paiata, Liberia, on Rattus rattus alex- 
andrinus (Geoffroy), and at Luvungi, Belgian Congo, on Mastomys coucha 
ugandae (De Winton). 
It is of interest that no human flea, Pulex irritans Linnaeus, was taken 
during the entire trip of the Harvard African Expedition. All fleas observed 
biting man were Ctenocephalus canis (Curtis), the common dog-flea. In the 
Amazon Valley I found the human flea likewise absent, while the cat-flea, 
Ctenocephalus felis (Bouché), was the species found there on dogs and biting 
man occasionally. According to Foley (1929, Bull. Soc. Hist. Nat. Afrique 
du Nord, XX, p. 52), while Pulex irritans is extremely common in Northern 
Africa proper, it is not found in the Sahara, south of the Atlas Range. Jordan 
and Rothschild (1908, Parasitology, I, p. 12) saw specimens of P. irritans 
from Egypt, Abyssinia, Somaliland, Cape Colony, Benguela, and the island of 
Sao Thomé; but they mention no West African or Congo localities. It must 
be kept in mind that travellers’ statements as to the abundance of “fleas”’ 
in certain localities do not necessarily refer to P. zrritans, since they may be 
caused either by Ctenocephalus or by newly hatched and male Dermatophilus 
penetrans. In South Africa, however, P. irritans is common in many localities 
(Waterston, 1914, Ann. South Afric. Mus., X, p. 273; and Bedford, 1927, 
11th and 12th Repts. Dir. Vet. Res. South Africa, I, p. 772). 
ARCHAEOPSYLLIDAE 
Ctenocephalus canis (Curtis) 
Pulex canis Curtis, 1826, ‘Brit. Entomol.,’ VII, No. 114, figs. A-E and fig. 8 (no sex; no locality, 
but probably from England). 
Ctenocephalus canis J. Bequaert, 1926, Medical Rept. Hamilton Rice 7th Exp. Amazon,’ p. 247. 
LipertA. — Reppo’s Town, off domestic dog, August 31, 1926. Banga, 
biting man, October 23, 1926. Totokwelli, biting man in the resthouse, Octo- 
ber 30, 1926. The native name of the flea among the Kpwesi is ““mbafi.”” Moala, 
November 2, 1926. 
Beician Conco. — Lulenga, at an altitude of 1,850 m., off domestic dog, 
off a civet cat, Civettictis civetta (Schreber), and biting man. The Wanyaruanda 
name of the flea is ‘‘imbarakasa.”’ 
DOLICHOPSYLLIDAE 
A species of Ceratophyllus was found on a squirrel, Aethoscrurus byattt Ker- 
shaw, at Bagilo and Nyange, Uluguru Mountains, Tanganyika Territory 
(Arthur Loveridge). 
