444 DR. p. CHALMERS MITCHELL ON LONGEVITY AND 



INSECTIYORA. 



Hr^TiT^mn 217 No. of Av. dur. Max. diir. 



OOKEtlDA. iTidiv. in months, in months. 



Crocidura cceridescens (Bluish Shrew) .1 1 1 



Erinaceid^. 



Erinaceus, whole genus 53 10 54 



^.aZ6z'yert^r;s( White-bellied Hedgehog) 11 1 



^. a?f/z>?/s (Algerian Hedgehog) 3 28 35 



E. auritu,s (Long-esived „ ) 8 12 24 



E. coUaris {CoWeired „ ) 6 19 54 



E. europceus (EuYO'pesin „ ) 33 7 20 



E . frontalis {Gsi,])e „ ) 1 1 1 



E. ?wcropz{s (Small -footed ,, ) 1 1 1 



TuPAIIDiE. 



Tupaia peguana (Peguan Tree->ihYew) 1 22 22 



r. tota (Tana Tupaia) 1 28 28 



Centetid^. 

 Centetes ecaudatus (Tenrec) 11 10"5 24 



I do not know of any information as to the potential longevity 

 of Insectivora, and the few i-ecords which I have found would 

 appear to show that both the viability and the longevity of these 

 animals under the conditions of captivity are bad. They have 

 invariably been kept indoors, in small cages in houses heated in 

 winter. 



Capt. Stanley Flower's records are all low, the maximum being 

 34 months for a Long-eared Hedgehog. 



OHIROPTERA. 



No. of Av. duv. Max. dur. 



PtEROPODID^. Indiv. in months. in months. 



PierojoMs, whole genus 42 30 205 



P.formosus (Formosan Fruit-bat) . 3 62 94 



P. go'uldi (Gouldian ,, ) . 1 58 58 



P.medius (Indian „ ). 30 27 205 



P . poliocepjlialus {A\x^tT2d\a,\\ ,, ), 6 22 83 



P. pselaphon (Bonin ,, ) . 1 26 26 



P. scapidatas (Scapulated ,, ) . 1 7 7 



Cynonycteris collar is (Collared 13 18 108 



Fruit-Bat), 



Cynoptericsmarginatus(White-e{iYed 4 24 30 



Fruit-Bat). * 



MetchnikofF has already recorded from the London Zoological 

 Gai-dens the case of maximum duration amovinting to 17 years 

 in a Fruit-bat, and has pointed out that the probable maximum 

 longevity of such bats is high. The records show that the viability 

 under existing conditions is not good, as wherever there is a 



