.367 
Aud in addition to these instances it may be remarked that the 
whole group of species which may possibly have been introduced in the 
crops of grain-eating birds can be only considered as indirectly bird- 
introduced, since some accident must have happened to account for the 
death of the introducing bird in order to explain the germination of the 
seed and final introduction of the plant. 
The “migrant” species, meaning thereby all that have certainly 
been introduced and all for which introduction is conceivable, may be 
divided into “civilized” species introduced by man, and “ sylvestrian ” 
or wild species. The wild species may be divided into “coast” 
species, further subdivided into “ marine ” and “ littoral ” species, the 
whole of the coast species being sea-introduced; and into “ inland ” 
species. These latter, which may of course also occur on the shore, but 
for the introduction of which the sea has not been responsible, may 
best be classed as “ wind-introduced ” and as “ bird-introduced ” species 
Species introduced by birds may have been introduced either attached, 
to the bodies of these or carried in their crops. These different groups 
will be discussed in detail; last of all the “remanent” species will be 
considered. 
The “civilized” species comprise cultivated plants and weeds of 
cultivation or of waste places; the former corresponding practically to 
domestic animals like the cow or horse, and to domestic insects like the 
bee or silk-worm, the latter to the vermin that associate themselves with, 
or accompany man and his domestic creatures. This group therefore 
contains the species that may, directly as economic or aesthetic plants, 
or indirectly as weeds, have been introduced by man. The list subjoined 
includes the whole of the species present in the islands that are known 
to be sometimes thus introduced; those that are likely to be here in¬ 
digenous, or to have been introduced by other than human agency, are 
enclosed within brackets and will be found again in one or, at times, more 
than one of the subsequent lists. 
List of Civilized species found in the Coco Group. 
* Nymphsea rubra. This variety has perhaps been introduced 
intentionally into Great Coco, where 
it occurs in the small lake. It has 
to be recollected that it is a favourite 
flower with the Burmese and is sold 
for votive purposes in the Pagodas 
volving it more hopelessly in the tangled sticky mass. After the snake died its body 
was carefully examined and it was found that it had suffered no previous physical 
injury which could account for its inability to escape. 
J77 
