
JOHNSTON AND EpMONDS—AUSTRALIAN ACANTHOCEPHALA 557 
Male System, Two ovoid testes, 08 to 1-8 mm. in length and 0°5 to 0-9 mim. 
in width, ave situated in the anterior half of the worm. Six long tubular cement 
glands whieh are pressed closely together, arise near the posterior testis in most 
cases, The two cement duets are swollen basally to form two cement reservoirs. 
he vas deferens is distended at its posterior part to form a seminal vesicle, There 
is a well developed penis. Suefftigen’s pouch is club-shaped and the bursa bears 
a number of rays, 
Female System. The structure and arrangement of the female reproduetive 
systems are shown in fig, 6,9, The uterus proper is long, being usually about half 
the body length. Ripe eggs, measured im 70 p.c. alcohol, ave 62-66, by 30-37p, 
and are without polar prolongations. 
Systematic Position, Our specimens agree closely in most details with the 
account of F, sphacrocephalus (Bremser) published by Trayassos (1926, 91) but 
there isa difference regarding the number and arrangement of the proboscis hooks, 
Bremser reported that there were 26-28 longitudinal rows, each with 10-14 hooks. 
Marval (1905, 322) mentioned 26-28 rows, each with 12-14 hooks, Travassos 
(1926) stated that there were 23 rows, each with 10 hooks. Meyer (1932, 76) 
published a sunimarized account of the species. Our specimens possess 19-21 longi- 
tudinal rows, each with 7-8 hooks but in spite of this difference, we have decided 
to assign them to I’, sphaerocephalus which is known from Larus dominicanus and 
some other birds from South America, A variation in the number and arrange- 
ment of the proboscis hooks has been indicated by Perry (1942) in her account of 
F. altmani which has 25-20 (28) rows each with 9-12 (11) hooks. 
Empopius ALECTURAE Nn, sp. 
Fig. 11-24, 
A number of parasites of this species were collected by the late Dr. T. L. 
Bancroft from the intestine of Alectura lathami from Hidsvold, Burnett River, 
Queensland. All the specimens are long aud flattened or eylindrical, and show 
well-marked psendo-segmentation. The smallest specimen is 11 mm. long, 
0-58 wm, wide, and white in colour. Most of the adult forms are pale yellow 


Vig. 1-10, Filicollis sphacrocephatus, 1, portion of proboscis; 2, arrangement of proboseis 
hooks; 3. proboseis of young male; 4. three posterior proboscis howks from a large male; 
5, male specimen; 6. posterior portion of female; 7- T.S, male showing 6 cement glands; 
8. T.S. male in region of cement reservoir; 9. genital complex of female; 1, mature egg. 
References to letlering: b. hursa; hr. brain; bw. body wall; cg. cement gland; er. cement 
reservoir; 1. lemnisci; In, Iacunar system; Im. longitudinal musele; Ip, lateral uterine pouch; 
m. muscle fibres; p- proboscis; ps. proboscis sheath; rm. retractoy muscle; so. swimming ovaries ; 
Sp, Saefftigen’s pouch; sph. sphinctor; t. testi¢; u. uterus; ub, uterine boll; vd, vas deferens; 
va, yesieula seminalis. 
