SIWALIK AND NARBADA CARNIVORA. 
19—195 
Species 3. Lutra sivalensis, (Falc. and Cant.) 
Synonyms. Enhydriodon sivalensis , F. and C. 
,, ferox , F. and C. 
Amyxodon, sp., F. and C. 
History. — In a memoir written in 1843, but not published till 1868, after his 
death , 1 Dr. Falconer described certain remains from the Siwaliks, of a lutrine animal 
1 as large as a panther,’ under the new generic name of Enhydriodon , 2 which was to 
replace the name Amyxodon which iiad previously been applied to the same remains, 
without description . 3 In the memoir on Enhydriodon no specific name was applied to 
the specimens described. In the description of the supplemental plate P. of the 
“Fauna Antiqua Sivalensis ,” 4 probably taken from Dr. Falconer’s notes, the 
specimens, which are there figured, are named Enhydriodon ferox. In the “ Palaeonto- 
logical Memoirs,” however, the specimens are figured (plate XXVII.) under the 
name of Enhydriodon sivalensis ; and it is said 5 that the specimens (now in the British 
Museum) were so labelled by Dr. Falconer, after the lithographing of the plate in 
the “ F.A.S.” If this be so, it seems that the name sivalensis was intended to be 
used by Dr. Falconer, and -as it is preferable to ferox it seems on the whole better to 
adopt it . 6 In the original memoir there are indications that Dr. Falconer considered 
that there were two species of the genus; but no specimens of the second and 
smaller form are now forthcoming. 
It will be shown in the sequel that with the materials now available (which are 
more complete than those accessible to Dr. Falconer), the teeth of the Siwalik fossil 
do not appear to afford sufficient grounds for separating it generically from the true 
otters ; and it will accordingly be referred to the genus Lutra , with the specific title 
of sivalensis. 
Cranium . — In his original memoir Dr. Falconer described three portions of the 
cranium of the so-called Enhydriodon , all of which are now in the British Museum, 
and are figured, of the natural size, in plate P. of the “ Fauna Antiqua Sivalensis,” 
1 “ Paleontological Memoirs,” vol. I., p. 331. 
2 This name is derived from Enhudris, the Greek name for the otter, and as the name of the living sea-otter ( Enhydris 
or Enhydra ) is derived from the same word, it has heen considered by some (the writer among the number) that the name 
Enhydriodon was intended to signify that the genus was allied to Enhydris. This, however, Dr. Falconer expressly states 
is not the case (“ Pal. Mem.,” vol. I., p. 332, note). On account of this tendency to mislead the name Enhydriodon is an 
exceedingly objectionable one. 
3 ‘Jour. Asiat. Soc. Bengal,’ vol. IV , 1836, p. 707, and Royle, “Illustrations of the Botany, etc., of the Himalaya 
Mountains,” vol. I., p. 31. 
4 Palseontologieal Memoirs,” vol. I., pp. 552-3. 5 Ibid, p. 331, note. 
6 The author must plead guilty to having previously used these names somewhat indiscriminately. 
