24 
2. Tmnza caLvA. (Annulosa, Pl. XXXI. fig. 1.) 
Tenia calva, Baird, Cat. Entoz. Brit. Mus. 83. 
Head small, rounded and smooth, white and shining. Mouth 
unarmed. Neck constricted. Articulations of body at first very 
small, gradually enlarging in breadth as they descend till they reach 
about the middle of the body, where they are still narrow, linear- 
shaped and about seven times broader than long. After this they 
begin to increase in length and diminish in breadth, becoming at first 
nearly square, and at last, near the extremity, nearly twice as long 
as broad. All the articulations are strongly striated across, and the 
upper and lower margins, where they join with each other, are con- 
siderably thickened. Length 53 inches, greatest breadth 33 lmes, 
breadth of lower extremity 1 millimetre, of head {th of a mill. 
Had. Intestines of the common Grouse, Lagopus Scoticus. Brit. 
Mus. 
3. Tania Goezil. 
Tenia Goezii, Baird, Cat. Entoz. Brit. Mus. 78. 
Articulations of body very short and numerous. Inferior margins 
straight. Genital orifices opposite, situated on or near the lower 
edge of each joint; the lemniscus projected out in form of an ele- 
vated papilla which curves downwards. Unfortunately the head is 
wauting. Greatest breadth of body 6 lines, length of articulations 
about 4 a line. 
This species differs from T. expansa and denticulata (to which 
species it approaches) in having the posterior or inferior border or 
edge of each articulation smooth and rounded, instead of being cre- 
nulated or undulated ; and in having the genital orifices situated on 
the lower edge of the articulation, instead of in the middle. 
Hab. ? Brit. Mus. 
4, Tanta ZepERI. (Annulosa, Pl. XXXI. fig. 2.) 
Tenia Zederi, Baird, Cat. Entoz. Brit. Mus. 85. 
Articulations of body of moderate size, campanulate-shaped, lower 
margins of each more or less crenated and thickened ; at first they 
are short, they then become longer and narrower as they descend. 
The greatest breadth is about 2 lines. The whole body is of a yellow- 
ish-white colour. Unfortunately the specimens are imperfect at the 
upper extremity and want the head. The orifices of the genital 
organs are irregularly alternate. 
Hab. Stomach of a Penguin from the Antarctic Seas. Collected 
during the late Antarctic expedition. Brit. Mus. 
5. Tania FALCIFoRMIs. (Annulosa, Pl. XXXI. fig. 3.) 
Tenia faleiformis, Baird, Cat. Entoz. Brit. Mus. 116. 
Head conical; proboscis unarmed? ; suckers large, oval-shaped ; 
no neck ; body at anterior extremity very narrow, almost linear, 
gradually enlarging as it descends; articulations very numerous, 
extremely narrow. The body is flat and is curved like a sickle. 
