242 



T. DE MONTE AND G. PILLERI 



Table I. 



Leukocytes in the peripheral blood c/Inia geoffrensis, 

 Platanista indi and Platanista gangetica 

 A'^ ; neutrophilic granulocytes, B : basophilic granulocytes, E : eosinophilic 

 granulocytes, L : lymphocytes, M : monocytes, O : other micleated cells ( erythroblasîs ) 



Species 



N°andSex cytes N B E L M O 

 /mm2 



Inia geoffrensis 



417 9.800 73,5 10,5 12 2,5 1,5 



418 o 8.800 70 16,5 10,5 2,5 0,5 



419 $ 7.200 64 7 25 2 2 



420 ? 7.500 72 10 16 1 1 



Mean values 



8.325 69,88 11 15,87 2 1,25 



Platanista indi 



453 $ — 78 3 14 5 



454 — 87 1 7 4 1 



456 $ — 90 3 5 2 



457 $ — 88 2 8 2 



Mean values of P. indi 



85,75 2,25 8,5 3,25 0,25 



Platanista gangetica 



459 2 — 72 9 17 2 

 461 $ — 70 15 13 1 1 



463 $ — 70 18 10 2 



464 — 87 3,5 7 2,5 



Mean values of P. gangetica 



74,75 11,37 11,75 1,88 0,25 



Mean values of Gen. Platanista 



80,25 6,81 10,12 2,57 0,25 



variability in the percentages of the individual classes of leukocytes at différent 

 âges in cetaceans. It would be interesting to check the validity of this finding by 

 a séries of investigations and hence to contribute to the elucidation of the well 

 known " eosinophilia " of cetaceans. 



If the results obtained for Inia are compared with those obtained for the two 

 species of Platanista, it can be seen that in the latter genus only the percentage 

 of neutrophilic granulocytes increases to the détriment of the lymphocytes. 



PLASMAPROTEIN FRACTIONS 



The plasmaprotein fractions observed in Inia and Platanista have already 

 been described in a previous work (De Monte and Pilleri, 1971). The présent 

 paper contains data on each of the individual spécimens examined (table II). 



