KELATIVK VIABILITY IX MAMMALS AND 1UI{J)S. 52.") 



I am ignorant of any figures liitlierto recorded as to the 

 longevity of Hemipodes. My figures show a very low viability 

 both from the point of view of average and maximum dura- 

 tions. The birds were kept during the pei-iod dealt with under 

 the same conditions as the small Francolins, Quails and 

 Partridges. The alimentary tract is relatively short but 

 capacious, the hind-gut and cfeca being veiy capacious relatively 

 to the size of the birds. The group has a low viability. 



FULICARI^. 



■p No. of Av. dur. Max. dur. 



itALLIDyE. ji^jj^, j„ montlis. in months. 



Rallus, whole genus 24 21 •.'! 51 



/?. a^?t«<{cMs( Water-Rail) 10 13-9 35 



7i*. ce^e&e?isi\s (Celebeaii Rail) 3 36 48 



^. mff67fZ««MS (White-spotted Rail) ... 3 26 = 48 



A'. j»eciorrt^is (Australian ,,)... 6 19'5 35 



B . rhytirhyncJius {^ootY „ ) ••• 2 36 51 



Aramides caijenneiisis (West-Indian 19 10 26 



Rail) 



.'1. yjpemAa (Ypecaha Rail) 11 15-5 39 



Por«rt??«, whole genus 5 30 59 



P. crtroZiftffl (Carolina Crake) 2 22-5 28 



P. maruetta ( Spotted „ ) 2 29 29 



P.iiotata (Marked „ ) 1 59 59 



Rallina pcecilo'ptera {^^Y-^'vugQ^ Rail) 12 2 



CVe.r p-«^eHsis (Corn Crake) 16 22 101 



Ocv/cZroHM^.s, whole genus 30 52 117 



0. australis ( Weka Rail ) 17 49 117 



0. e«Wi (Earl's ., „ ) 8 64 107 



0. fascus (Black Woodhen) 1 50 50 



0. lafresnaijanus (New Caledonian 



Rail) 2 43-5 76 



0. sylvestris (Woodhen Rail) 2 38-5 66 



Ztm«oco?'«£c lu^er (Black Galliiuile) ... 2 52 "5 89 



Forphyrio, whole genus 53 23"5 75 



P. ccdvus ( Javan Porphyrio) 1 1 1 



A cce?^«(.Ze?(s (Purple Gallinule) 4 21 32 



P. edioardsi (Milne Edwards's 2 18-5 22 



Porphyrio) 



P. madagascariensis (Madagascar 17 18 59 



Porphyrio) 



P. melanotus (Black- backed „ ) 19 25 73 



P. poliocephalus (Grey-heailed ,, ) ^ '^2 75 



P. vitiensis (Grey-blue ., ) 1 23 23 



Hydrornia alleni{K\\Qn's ,, ) 1^ ^'^ ^'^ 



lonornis martinicus (Martinique 8 17 30 



Gallinule) 



Trihony.c mortieri (Mortier's W^ater- 1 102 102 



hen). 



T. vfiutralis (Black-tailed Waterhen). 3 85 162 



