UCTION OF GETACEA 



■" bc 

 -O C 

 Ü'C > 



•r o u 

 W o c 



Birth 



Length of Animal in feet and in (metres) at 



Weaning 



Sexual Maturity 



Physical Maturity 



40 

 20 

 30 



30 



25 



30 



30 

 25 



25 



20 

 20 

 20 



258 

 20 

 25 



>5 



15 



15 



6 



15 



5-6 

 8 



'5 



'3(4) 

 '4 (4-5) 

 24 (7è) 



22 (6-5) 



21 (6) 

 15 (4-5) 



9 (2-7) 

 14 (4-2) 



13 (4) 



13(4) 



10 (3) 

 6(1-8) 



15 (4-5) 

 5(1-6) 



8(2-5) 

 9(2-8) 

 6(1-8) 



(0-7) 



52-5 ('6) 

 39 ('2) 



27 (8-5) 



16(5) 

 26(8) 



20 (6) 

 22 (6-7) 



21 (6-5) 



10 (3) 



74 (22-5) 

 70 (21-3) 

 63 (19-2) 

 58(17-6) 

 62 (19) 

 44 (13-5) 

 43(12-8) 



39è (12-3) 



22 (6-7) 



36(11) 



38(11-5) 



38(11-5) 



31 (9) 

 II (3-3) 



32 (9-6) 

 10 (3) 



16 (4-8) 



3è(i-i; 



77 (23-5) 

 74 (22-5) 



66 (19-9) 

 61 (i8-6) 

 66 (19-9) 

 47 (14-5) 

 45 ('3-5) 

 39 (12) 



24 (7-3) 



39 (12) 

 39è (12-3) 

 30 (9-5) 



29 (8-5) 

 II (3-2) 

 21 (6-5) 



33 ('O) 

 10 (3) 



12 (3-6) 



3è(i-'; 



51 (15-5) 



48 (14-5) 

 81 (24-7) 



68 (20 -8) 

 63 (19-2) 



49 (15) 



44 (13-7) 

 51 ('5) 



'5 (4-5) 

 26 (8) 



39 (11 -7) 

 13 (4) 

 18 (5-5) 

 30 (9) 



20 (6) 



54MI-8) 



5' ('5-5) 

 50 (15-5) 

 87 (26-5) 



74 (22-5) 

 70 (21-3) 



54 (16-5) 



29 (8-8) 

 45 (14) 

 38(11) 



13(4) 

 23 (7) 



40 (12) 

 13 (4) 

 18 (5-5) 

 15 (4-5) 



15 (4-5) 



51(1-8) 



* According to Japanese in\estigators, mating takes place all year, but is most 

 intense in December. 



^ Probably all year, with maximum intensity during May-July. 



"^ Probably senile after i8th year. 



' Resting period of one year after every three pregnancies. 



" Resting period of one year after every 4-5 pregnancies. 



' Mesoplodon bidens (Sowerby). 



AA 



