H. A. Baylis 
65 
when dealing with P. indicum , the number and arrangement of the male 
caudal papillae cannot, probably, be regarded as satisfactorily described. The 
two rows of translucent auriculate appendages of the head referred to by 
Cobbold may probably be interpreted as corresponding to (a) the auricular 
appendages themselves, and (6) the vesicular swellings of the cuticle which 
partly fill their cavities in front, in the two forms now described. The account 
given of the cephalic papillae is not very clear, while nothing corresponding 
to the minute papillae said to exist within the concavity of the auricular 
appendages has been observed in P. indicum or P. africanum. Mitter (1912) 
adds little to Cobbold’s description. 
Host. Cobboid’s material was collected from the coats of the stomach 
of Elephas indicus, where the worms inhabited tumours of about the size 
of a filbert nut and of an oval, flattened shape. A similar habitat is indicated 
by Mitter, who, however, mentions the “intestines,” not the stomach. 
Table of measurements of the species of Parabronema. 
(All measurements are in millimetres, and represent specimens of about the maximum size. 
The figures for P. smithii have been calculated from the fractions of an inch given by Cobbold, 
and are only approximate.) 
Species 
t --- 
indicum africanum smithii 
/ 
•A 
6 
?' 
Length 
7-9 
130 
Thickness (maximum) 
0-31 
0-39 
Diameter of head at posterior 
end of auricular appendages 
014 
0-15 
Length of tail... 
017 
0-32 
Length of buccal cavity 
0-17 
0-18 
Distance from anterior ex¬ 
tremity to posterior end of 
auricular appendages 
015 
0-17 
Distance from anterior ex¬ 
tremity to posterior end of 
cervical papillae 
0-39 
0-42 
Distance from nerve-ring 
0-32 
0-34 
Distance from excretory pore 
0-33 
0-35 
Distance from junction of two 
divisions of oesophagus ... 
0-4 
0-4 
Distance from posterior end of 
oesophagus ... 
2-2. 
2-25 
Distance between transverse 
striations of cuticle 
0*0035 
Length of spicules 
\ R. 0-39 
\ L. 0-93 
Greatest length of accessory 
piece... ... ... ... 
0-06 
Distance of vulva from posterior 
end of oesophagus... ... 0-4 
Distance from caudal papillae 
(?) to tip of tail ... ... 0-03 
3 
? 
3 
$ 
40-0 
570 
4-2* 
8-5* 
0-8 
1-0 
0-2 
0-25 
0-27 
0-32 
— 
— 
0-85 
0-52 
— 
— 
0-35 
0-4 
— 
— 
0-3 
0-36 
— 
— 
0-7 
0-85 
_ 
0-7 
0-83 
— 
— 
? 
0-9 
— 
— 
0-9 
1*0 
— 
— 
6.5 
0-01 
7-2 
— 
1-5 
R. 0-68 
Shorter 
018 
L. 
315 
0-08 
Longer 
0-32 
0-1 in front, 0-2 behind [Probably about 0-2 
behind] 
* Mitter (1912) gives 4-16 mm. for the length of the male and 8-3 mm. for that of the female 
of Filaria smithii . 
Parasitology xin 
5 
