3046 REPORT OF THE HARVARD AFRICAN EXPEDITION 
Hormodendrum pedrosoi Brumpt 19211 has been discovered and cultivated by 
Pedroso from a nodular and verrucous dermatitis in Brazil. 
Montpellier and Catanei? have also recently reported a case of about ten 
years’ duration in which the lesions consisted of polymorphic eruptions involving 
the right leg and instep. From them a fungus was obtained on Sabourraud’s 
glucose medium which was identified as a new species of Hormodendrum to which 
the name of H. algeriensis has been given. Histologically the fungus was present 
in the form of spherical or ovoid cells 2 to 10u in length, rarely arranged in chains. 

No. 269.— Case 500, camera lucida drawing illustrating 
cellular reaction and spores of fungi in the corium. Zeiss objective 
DD, compensating ocular 6 
The subcutaneous inoculation of a rabbit with the culture of this organism led 
to the formation of a large abscess, in the base of which the fungus was present 
and from which it could be recultivated. 
The organism from our African case is probably identical or closely related 
to Hormodendrum langeroni Fonseca. 
Trichophyton and Tinea vesicolor infections of the skin were found to be 
common in Liberia. These Liberian cases showed no peculiarities and were 
similar in appearance to cases of these affections observed in other parts of the 
tropical world. Cases known as craw-craw were also frequently observed in 
the interior of Liberia, especially among children. We have already referred to 
the discussion regarding the significance of filariae in such lesions and the observa- 
tions of O’Neil and of Macfie who described microfilaria in some of the papules. 
The Africans undoubtedly at times employ the term craw-craw for different 
affections of the skin in which itching and scratching occur. In a number of the 
1 Brumpt: Précis de Parasitologie,” 1927, 4th ed., p. 1333. 
2 Montpellier and Catanei: Ann. Derm. et Syph. (1927), VIII, 626. 
