Grid Mammals 
Changes in mammal populations since previous cruises would 
seem quite significant. In the north section mammals were con¬ 
spicuous by their absence. 'Where on previous cruises we would 
normally see up to thirty Fur Seals (Cal lo r hinus ursinus ) only 
four were identified. Two additional seals were unidentified. No 
other mammals were seen in the north section. 
The central section was heavily populated with mammals. 
V-. 
~_s were represented by one bull Elephant Seal ( M.irounq. 
r.ncustirostris ). an unidentified sea lion, and two unidentified 
Otarics. Whales were numerous and included what was believed to 
have oeen a Baird's Beaked Whale ( Beraraius bairdii ). Twenty- 
r.xne Sperm Whale ( Physter catodon ) and 28 Pilot Whales ( Globi- 
cephala scammonii ) were also identified. All the Sperm Whales 
were travelling in a northward direction. 
t 
Porpoise in the central section were of two identified species. 
Fourteen bottle-nosed Dolphin (Tu rsiops truncatus ) were seen in two 
groups, each time in company with another species( Pilot whale and 
Risso's Dolphin). Five Risso's Dolphin ( Grampus oriseus ) were 
tentatively identified and photographed. In addition to those 
photographed, five unidentified porpoise were seen. 
-he south section also had a good number of mammals. Otarids 
we 
re represented by two unidentified sea lions. Twenty five Piloy 
./hales and :ive Sperm Whales were also seen. Porpoise were numerous, 
but most were unidentified. Those which were well seen included 
Bottle-nosed Dolphin,(3), Risso's Dolphin ( 5 ), 12 Striped Dolphin 
( Lage no rhynhus obliciuidens ) and two Baird's Dolphin ( Delpninus 
ael_disThe latter two species were in the same school, as were 
tn " rlisso ' s and bottle-nosed Dolphin. Of the 53 unidentified por- 
