SOME AHPECTX O W NI~~Ol'lAASIA IN M A I t f N I A N I M I ~ I A S
207
The cells wero lttrgc! and c.ontuined obvious nuclei with abundant
coninopl~ilic: cytoplas~n (Fig. :I 1 ). M11c.l1 arttolytic change had occsurred,
:t11(1 hydinr drgctnert~t~ion W ~ L H
H C O ~ i~r011nd mcmy of the nutrient arteries
(Fig. 32).
T A I J I , ~
V. 'I'UMO~JRS Ibic~~on~r~er~ IN THE P~NWIPEI>IA
Fox, 1923
Simpson and
Ridgway, 1970
Simpson and
Ridgway, 1970
Grirler, 197 1
It is sr~rprixi~~g that some of'thc c.ctaccaans, the largest animals on
earth, have eve11 survived a t all ill their marine environment. This
they have done only by caxtromc adaptattion of many of their systems
( Harrison, 1978).
Although apparently more inaccessible than the Pinnipedia, more
C~LHCS of neoplttsit~ have been reported in the Cetacea than in the former
group. Tho reported incidence of rleoplasia in both the Cetacea and,
Yinnipedia can only represent but the tip of an iceberg, for unless a
group of scientists is prepared to dissect large numbers of these animals
when they arc slaughtered, which is often enough to deter the most
enthusiastic, there is little chance of more than the grossest of lesions
being recognized by the pathologist. Cockrill was fortunate in being
appointed as Whale Fishery Inspector and Veterinary officer on the
Sozethern Venturer in 1948149, and later on the Balaenu in 1961/52 and
207
The cells wero lttrgc! and c.ontuined obvious nuclei with abundant
coninopl~ilic: cytoplas~n (Fig. :I 1 ). M11c.l1 arttolytic change had occsurred,
:t11(1 hydinr drgctnert~t~ion W ~ L H
H C O ~ i~r011nd mcmy of the nutrient arteries
(Fig. 32).
T A I J I , ~
V. 'I'UMO~JRS Ibic~~on~r~er~ IN THE P~NWIPEI>IA
Fox, 1923
Simpson and
Ridgway, 1970
Simpson and
Ridgway, 1970
Grirler, 197 1
It is sr~rprixi~~g that some of'thc c.ctaccaans, the largest animals on
earth, have eve11 survived a t all ill their marine environment. This
they have done only by caxtromc adaptattion of many of their systems
( Harrison, 1978).
Although apparently more inaccessible than the Pinnipedia, more
C~LHCS of neoplttsit~ have been reported in the Cetacea than in the former
group. Tho reported incidence of rleoplasia in both the Cetacea and,
Yinnipedia can only represent but the tip of an iceberg, for unless a
group of scientists is prepared to dissect large numbers of these animals
when they arc slaughtered, which is often enough to deter the most
enthusiastic, there is little chance of more than the grossest of lesions
being recognized by the pathologist. Cockrill was fortunate in being
appointed as Whale Fishery Inspector and Veterinary officer on the
Sozethern Venturer in 1948149, and later on the Balaenu in 1961/52 and