141 
Leporidae: 
Lepus cuniculus: 
(a) Absent. 
Dasyproctidae: 
Dasyprocta sp.: 
(a) No. 16: Present, size = D 2; outlying part of sympathetic 
chain. 
(b) No. 21: Absent. 
(c) No. 1: Present; size = D 2; uncertain relation to sympathe- 
tic chain. 
Cavidae: 
Hydrochoerus capybara: 
(a) No. 66: Present; size = D 2; unconnected with sympathetie 
chain. 
Hystrieidae: 
Synetheres prehensilis: 
(a) No. 5: Present; size = D 2; uncertain relation to sympa- 
thetie chain. 
(b) No. 6: Present; size = D 2; uncertain relation to sympathetic 
chain. 
(c) No. 7: Present; size = D 2; outlying part of sympathetic 
chain. 
Hystrix oristata: 
(a) Absent. 
Octodontidae: 
Myopotamus coypu: 
(a) No. 4: Present; larger than D 2; closely associated with 
sympathetic chain. 
(b) No. 8: Absent. 
(c) No. 9: Absent. 
(d) No. 10: Absent. 
Castoridae: 
Castor canadensis: 
(a) No. 74: Absent. 
Sciuridae: 
Sciurus cinereus: 
(a) Absent. 
