326 Records of the Indian Museum. [Vor. XI, 
(9) Amphilina magna, n. sp. from the coelom of 
Diagramma crassispinum, 
Group CESTODARIA, Mont., 1892. 
= Cestoidea monozoa, Lang. 
= Cestodes monogeneses, V. Ben. 
== Atomiosoma, Monticelli, 1892 ? 
Cestodes in which the animal consists of a single segment, 
containing a single set of reproductive organs. In addition to 
the male pore and female (vaginal) pore, there is a third aperture, 
that of the uterus (birth-pore). The apparatus by which fixation 
is effected, consists usually of a single sucker, but presents con- 
siderable variation in form, as well as in disposition, with regard 
to the genital pores. 
Family AMPHILINIDAE, Braun, 1883. 
Oval or leaf-shaped, without a distinct ‘‘ head’’, but with a 
single small acetabulate sucker at one end. 
Genus Amphilina, Wagener, 1858. 
‘Body flat. Long egg-shape to leaf-like. Anterior and pos- 
terior ends pointed. Dorsal surface more arched than ventral sur- 
face. Skin with a net pattern caused by regular pit-like depres- 
sions. Anterior extremity usually with a pit, deep, or otherwise, 
according to the degree of contraction. This extremity may also 
present the appearance of a papilla or glandiform snout. On 
this papilla numerous one-celled glands occur, with long excretory 
ducts. The excretory system consists of anastomosing vessels 
with pore posterior. Testes numerous. Cirrus-sac absent. Ovary 
and reproductive aperture posterior. Opening of vagina a little 
way from posterior extremity, marginal or on surface. Uterus a 
long N-shaped canal, first running forward, then turning round and 
running posteriorly, then again curving round and running for- 
ward’’ (Wagener). 
Apmhilina magna, n. sp. 
(Plate xxvii, figs. 6-7). 
Z.E.V. £246 Coelom offDiagramma Pearl Banks, Ceylon. T. Southwell. 
crassispinum. 
Three specimens. ‘Two damaged, one perfect. 
A description of the superficial characters of this worm was 
given by me in the Ceylon Marine Biological Reports, Vol. VI, 
Jan. 1912, page 273, and this I reproduce here. 
‘‘During the examination of a number of specimens of 
Diagramma crassispinum, three specimens were found to (each) 
contain a most remarkable free living parasite in the coelom. Un- 
