On the Brazilian Species 
of the Sub-family Subu- 
lurinae TRAVASSOS, 1914, 
by 
DR, ANTONIO LUIS DE B. BARRETO. (1) 
(With Plates 2--24). 
Material. 
The material used for this study forms 
part of the helminthoiogical collection belong- 
ing to the «Instituto Oswaldo Cruz», nos. 
1070 to 11 34. To the specimens already there 
existing, the greater part of which were col- 
lected by Drs. A. LUTZ and L. TRAVAS- 
SOS, I add those obtained from 500 autopsies 
made by me. 
Sub-family SUBULURINAE Travassos, 
1914. 
Synonymy. 
Subulurinae TRAVASSOS, 1914—p. 137. 
Kathlaniinae LANY, 1914—p. 655. 
Subulurinae HALL, 1917—p. 51. 
History. 
In 1914, TRAVASSOS established the 
sub-family Subulurinae, in Nematology, thus 
elevating to the category of sub-family the 
nematodes until then included in the genera 
Subulura and Oxynema taking as type espe- 
cies, Subulura MOLIN of which he gives the 
following diagnosis: 
Mouth with three indistinct lips, or with- 
out them, followed by a vestibulum. Oeso- 
phagus with bulb; males mith fusiform sucker 
without chitinous rim. Spicules unequal ac- 
companied by a gubernaculum. Not knowing 
the work of TRAVASSOS, and noticing that 
the number of Heterakidiae with sucker with- 
out chitinous rim, is quite considerable, 
LANE established the sub-family Kathlani:nae 
which comprises the genera Suhulura, Dac- 
nitis, Cissophyllus and Kathlania n. gen., 
calling attention to the fact that there are 
always 11 pairs of papillae on the tail of the 
males in this new sub-family. 
After having carefully studied some pa- 
rasites of the genus Subulura and looked 
through the literature, we think we are jus- 
(1) Handed in for publication in December, 1917. However, as new studies appeared by degrees, we com- 
pleted this monograph with the literature on the subject until the year 1916. 
