Hughes: southern Australian podocerid amphipods 
87 
Figure 12. Podocerus dentatus (Haswell, 1879) female, AM P.86163,6.6 mm, Batemans Bay, New South Wales (scales represent 0.1 mm). 
Myers, 1985; P. cristatus (Thomson, 1879) sensu stricto 
and of Barnard, 1965 (from California); P. kleidus Thomas 
& Barnard, 1992 and P. vulgaris sp. nov. 
Podocerus kleidus has a smooth head while other species 
in this group have a weak to well developed head bump. 
Podocerus dentatus can be separated from P. crenulatus by 
the uncrenulated male gnathopod 2 propodus palm margin. 
Podocerus dentatus is most similar to, and sympatric with, 
P. vulgaris sp. nov. In P. dentatus the dorsal head bump is 
weakly developed, the male gnathopod 1 propodus palm 
has between 5-9 defining robust setae and gnathopod 2 
propodus palm has 1 tooth, where P. vulagaris sp. nov. has 
a well developed head bump, gnathopod 1 and 2 propodus 
palm with no robust setae and 2 teeth, respectively. 
It is difficult to assess the relationship of P. dentatus to P. 
cristatus. A recent search for the whereabouts of Thomson’s 
types could not locate material (Portobello Marine 
Laboratory and Otago Museum, New Zealand). Material 
figured by Chilton 1926, fig. 2, from Cooks Strait, New 
Zealand, attributed to P. cristatus is clearly an undescribed 
species. New material of P cristatus from New Zealand is 
required to better compare it to other species. Presently P. 
cristatus can be differentiated from P. dentatus by the male 
gnathopod 2 elongate basis and propodus. 
Distribution. Australia. New South Wales. Clarke Island 
(Haswell, 1879), Bass Point, Ulladulla, Batemans Bay, 
Twofold Bay (current study). Tasmania. Cape Sorrel, St 
Helen’s Rock, Bay of Fires, Freycinet Peninsula, Maria Island, 
Bruny Island, D’Entrecasteaux Channel, Forestier Peninsula, 
Tasman Peninsula (current study). South Australia. Fleurieu 
Peninsula, Kangaroo Island, Eyre Peninsula, Investigator 
Islands (current study). Western Australia. King George 
Sound, Recherche Archipelago (current study). 
Podocerus hystrix Stebbing, 1910 
Fig. 13-14 
Podocerus hystrix Stebbing, 1910: 622, pi. 58. —Spring- 
thorpe & Lowry, 1994:19-20.—Lowry & Stoddart, 2003: 
246.—Griffiths, 1974: 322-323. 
Type material. Syntypes 10 specimens, AM P.2535; 8 
specimens, AM P.2536; 15 specimens, AM P.2537; 15 
specimens, AM P.2538; 11 specimens, AM P.2539, various 
localities. 
Type locality. 8 km east of Manning River ( Thetis station 
28); 2.5 km east of Port Hacking, ( Thetis station 35); 3.5 
km east of Botany Bay ( Thetis station 37); 6 km east of 
Wattamolla ( Thetis station 57), New South Wales, Australia. 
Material examined. New South Wales : 1 SEM pin mounted specimen, AM 
P.78218; 1 female, 6.1 mm, dissected, 3 slides, AM P.86215, Wattamolla, 
east of Bate Bay (34°36'S 150°54'E), 35 m, 3 January 1991, coll. The 
Ecology Lab for RMI/Pioneer Project (BP 4-213); 1 SEM pin mounted 
specimen, AM P.78220, Wattamolla, east of Bate Bay (34°6'48"S 151 °1 EE), 
45 m, 29 October 1990, coll. The Ecology Lab for RMI/Pioneer Project 
(T3-130); 1 specimen, AM P.77320, Cobblers, Bate Bay (34°7'S 151°10'E), 
70 m, 29 October 1990, coll. The Ecology Lab for RMI/Pioneer Project 
(T3-135); 1 female specimen, AM P. 86167, off Providential Head, east of 
North Head, Port Jackson (34°8’S 151°8’30"E), 45 m, 29 October 1990, 
coll. The Ecology Lab for RMI/Pioneer Project (W3-79); many specimens, 
AM P.86083, Bass Point (34°36’S 150°54’E), 45-50 m, 1 February 1990, 
coll. The Ecology Lab for RMI/Pioneer Project (S1R1); 3 specimens, 
AM P.86084, Bass Point (34°36'S 150°54E), 45-50 m, 1 February 1990, 
coll. The Ecology Lab for RMI/Pioneer Project (S1R1); 2 specimens, AM 
P.86085, Bass Point (34°36'S 150°54'E), 25-30 m, 1 February 1990, coll. 
The Ecology Lab for RMI/Pioneer Project (SI R5); 1 specimen, AM P.86086, 
off Providential Head, Wattamolla (34°08’S 151°08’30"E), 35-40 m, 11 
January 1990, coll. The Ecology Lab for RMI/Pioneer Project (S2R1); 
1 specimen, AM P.86087, off Providential Head, Wattamolla (34°08’S 
151°08'30"E), 45-50 m, 11 January 1990, coll. The Ecology Lab for RMI/ 
Pioneer Project (S1R2); 1 specimen, AM P.86088, off Providential Head, 
