ON TWO NEW MAMMALIAN CESTODES. 419 
29. On Two New Species of Tapeworms from the Stomach 
and Small Intestine of a Wallaby, Lagorchestes conspi- 
cillatus, from Hermite Island, Monte Bello Islands. 
By R. C. Lewis, M.A.(Cape), (1851 Exhibition 
Scholar) *. 
[Received March 17,1914: Read May 5, 1914.] 
(Plates I.-X. + and Text-figures 1-3.) 
INDEX. 
Systematic : Page 
Cittotenia lagorchestis, Sp. W. .....-.2.....s..eeveesenseereeees 420 
OOGOEEO, BUNGE, D> WS 90 caes00 gondod coaese Sun hod ae6 opOR CHD 427 
J am indebted to Mr. P. D. Montague, Caius College, Cam- 
bridge, for this material obtained by him on the recent expedition 
to the Monte Bello Islands. The parasites come from the intes- 
tine and stomach of a species of Wallaby, Lagorchestes conspi- 
cillatus, found only on two or three of the Monte Bello Islands. 
The specimens were compared with those in the collection at 
the Berlin Museum, thanks to the courtesy of Dr. A. Collin, 
who kindly assisted in comparing these species with those in 
the Museum, including Rudolphi’s collection. A comparison was 
also made with the collection in the British Museum (Natural 
History), where Cittotenia pectinata Goeze (21 & 25) and Citto- 
enia denticulata Rudolphi (21) were examined, and no spe- 
cimens bearing any resemblance to the species under discussion 
were seen in the collection at the Zoological Gardens or at 
the London School of Tropical Medicine. 
Both species are characterized by the presence of two sets of 
genital glands and two lateral genital pores to each segment. The 
genital canals cross the longitudinal canals and nerves dorsally. 
Interproglottidal glands are absent, and there are no calcareous 
bodies. They belong to the genus Cittotenia Riehm. The history 
of the genus is of some interest, and is discussed by Stiles and 
Hassall (26) and by Lyman (21). Riehm (23 & 24) established the 
genus in 1881, but later rejected it, placing his type Cittotenta 
latissima Riehm in the genus Dipylidiwm Leuck. In 1891 Blanch- 
ard included double pored leporine cestodes in the genus Monzezia, 
taking Tenia expansa Rudolphi as his type. Later, 1893, Railliet 
included these forms in the genus Ctenotenia with Tenia mar- 
mote Frolich as type. It was not until 1896 that the genus 
Oittotenia was re-established by Stiles and Hassall with the 
following characteristics :—Anoplocephaline cestodes with seg- 
ments broader than long and longer than thick, end segments in 
some cases becoming longer and narrower. ‘T'wo full sets of genital 
glands and two lateral genital pores to each segment; generally 
* Communicated by Prof. E. W. Macprips, F.R.S., V.P.Z.S. 
+ For explanation of the Plates see pp. 431433. 
Proc. Zoou. Soc.—1914, No. XX VIII. 28 
