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id 
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1804.] Recent Literature. 407 
I. Moniezia (Blanchard) which falls naturally into three groups: 
e Planissima group, with linear interproglottidal glands. 
b. The Expansa group with interproglottidal glands grouped 
around blind sacs. 
c. The Denticulata group, without interproglottidal glands. 
2. Thysanosoma (Diesing), single uterus with ascon-shaped egg- 
sacs. Genital canals pass between longitudinal canals. 
3. Stilesia (Railliet), for Taenia globipunctata and, provisionally, 
T. centripunctata. 
4. Species inquirende. 
In the special part of the genus Moniezia is considered first and 
most fully. Its three subgenera depend upon the presence and 
arrangement of the interproglottidal glands first described by Dr. 
Stiles. These are absent in one subgenus; in the second they form a 
deeply colored line in the stained specimen near the posterior edge of 
the proglottids, and finally in the third subgenus they are localized 
around blind sacs which open between the proglottids. For particu- 
lars of each species the original paper should be consulted ; it gives 
under each a full synonomy with a valuable list of hosts and of the 
geographical distribution so far as known, a bibliography of the spe- 
cies, a historical review and a detailed account of the anatomy. This 
is followed by a specific diagnosis based on the anatomical description 
and a statement with regard to the collections in which type specimens 
may be found. 
Among interesting detailsin the genus Moniezia may be mentioned 
that on the right side the vulva is ventral, the cirrus dorsal, while on 
the left the reverse position obtains. New are the species M. planissima, 
M. trigonophora and M. oblongiceps. The systematic position of M. 
benedeni and M. Neumanni does not seem to have been satisfactorily 
ascertained since the material at hand failed to yield good preparations; 
Dr. Stiles refers them, however, to the Planissima group. : 
By examining some of the original specimens from Rudolphi’s col- 
lection, the exact limits of M. expansa (Tania exp. Rud.) were deter- 
mined. It is evident that most helminthologists have included more 
than one species in their descriptions. The old genus Thysanosoma 
(Dies.) is reestablished to include the form subsequently named by 
Diesing Tenia fimbriata, and T. giardii Riv. Of especial interest 
may be mentioned the presence of two transverse canals in Th. acti- 
noides. The necessity of a new genus for T. globipunctata and T. cen- 
tripunctata was pointed out by Stiles in his preliminary ; meantime 
