224 DR. R. T. LEIPER AND SURGEON E. L. ATKINSON 
TREMATODA. 
HEMIURUS OATESI, Sp. n., from 7rematomus bernacchii. 
Length 2mm. Abdomen present but retracted wholly. Skin 
sharply striated. Ventral sucker 0°34 mm. diam., twice that of 
oral sucker. Enormous muscular seminal vesicle. Yolk-masses 
compact, lobulated. Eggs exceedingly numerous and small. 
APONURUS BOWERSI, sp. n., from Zrematonmus bernacchit. 
Length 1 mm. Oral sucker has characteristic fleshy lip along 
dorsal rim only. Gut-branches greatly dilated extend to posterior. 
end of body. The yolk-glands are peculiar: two halfmoon-shaped 
solid masses lying in apposition immediately in front of the 
ovary. 
LEPODORA GARRARDI, sp. n., from Zrematomus bernacchii. 
Flat fleshy forms 3x0°9 mm. Brownish colour due _ to 
numerous yolk-glands. Skin covered with delicate spines. 
Ventral sucker 0°27 mm., oral sucker 0°37 mm. Stout pyriform 
pharynx 0°2 mm. Eggs few but large. Testes tandem. Gut- 
branches wide and extending to posterior end of body. 
PoDOCOTYLE PENNELLI, sp. n., from 7'rematomus bernacchii. 
Small forms tapering from large pouting ventral sucker. 
Armed cirrus extends to posterior level of the ventral sucker. 
Yolk-glands large and discrete. Testes smooth, tandem. Eggs 
large, with flat knob-like protrusion at one pole. 
ALLOCREADIUM FOWLERI, sp. n., from Zrematomus bernacchit. 
Immature forms 0°74 mm. in length, 0°4 mm. broad. Skin 
smooth. Cylindrical excretory vesicle with fine black pigment 
granules. Large ventral sucker 0°36 mm. Three small round 
bodies 0°1 mm. in diam. represent the genital glands. 
CESTODA. 
DIBOTHRIOCEPHALUS LASHLEYI, sp. n., from Leptonychotes 
weddelli. 
3 to 4 cms. Young segments quadrate. Mature segments 
3 to 4 times longer than broad. Head 1:2 mm. long x 0°77 mm. 
broad. Suckers, situated laterally, are almost circular and do not 
extend much down the head. Eggs commence at 14th segment, 
0-06 mm. The testes extend inward in each segment in single 
series of three. 
DIBOTHRIOCEPHALUS ARCHERI, sp. n., from Leptonychotes weddelli. 
6 to 12 cms. Large square head 2:04 mm. broad. Lips of the 
suckers folded inwards. Eggs start at 57th segment and measure 
0:07 mm. ‘Testes scattered diffusely. 
DIPHYLLOBOTHRIUM RUFUM, sp. n., from Leptonychotes weddelli. 
3 to 6 cms. The head is characteristically pigmented brick-red 
around the base of the suckers. Head. measures 1°64 x 1:44 mm. 
