106 
MR. H. N. MOSELEY ON THE ANATOMY AND 
erroneous. On the whole, then, no apology is required for the present memoir. A list 
of all the works referred to is given further on ; when more than one memoir by the 
same author is cited the successive memoirs are numbered. 
Land-Planarians were first discovered by O. F. Muller in Denmark in 1773 (loc. tit.* 
infra 1, p. 68), and the species he discovered was called by him Fasciola terrestris. Duges 
discovered the same species in Languedoc in 1830 (loc. tit. 2), and called it Flanaria 
terrestris ; Fritz Muller discovered it at Greifswald in Germany ; Noll found it in 
Switzerland, at St. Goar, in 1862 (loc. tit.) ; Grube in Silesia in 1866 (loc. cit.). It 
was first discovered in England by Mr. Jenyns (Observations in Nat. Hist. p. 315, 1846) 
at Bottisham Hall ; then by Sir John Lubbock, Bart., in Kent (loc. cit.), in 1868 ; and, 
thirdly, by the Rev. W. Houghton, M.A., F.L.S., in Shropshire. During this period 
and subsequently a large number of Land-Planarians have been discovered in various 
parts of the world, and have been referred to several genera, and indeed to different 
families. 
All the Land-Planarians as yet known belong to the Dendrocoelous group of these 
animals, which group is thus split up by Diesing (loc. cit.), here quoted only as far as 
regards Land-Planarians : — 
Dendroccela. 
Family I. Planaridea (eyes two). 
.... Genus Bhynchodemus. 
Family II. Polycelidea (eyes many). 
Phalanx I. Polycelidea apoda. 
Phalanx II. Polycelidea gasteropoda. 
Subfamily III. Geoplanidea. 
Genera. Geoplana. 
Bipalium. 
The genus Bhynchodemus is thus characterized f by its founder ; and under this genus 
are included by Diesing the following Land-Planarians : — 
' Denmark. O. F. Muller. 
England. Sir J. Lubbock (Kent), 1868 ; Houghton 
(Shrops.), Ann. & Mag. 1870, vi. p. 256 ; and first by 
Jenyns, Observations in Nat. Hist. p. 315. 
France. Duges, 1830. 
Germany, Greifswald. Fritz Muller. 
Germany, Silesia. Grube, 1866. 
k Switzerland, St. Goar. Noll, 1862. 
* See pp. 113-115 infra for Bibliography. 
f “ Corpus elongatum, subdepressum, antrorsum attenuatum, utrinque obtusum. Ocelli duo subterminales.” 
— Dr. Leidy, Proe. Acad. Nat. Sci. Philad. vol. v. 1851. 
Rhynchodemus 
terrestris . . 
