Hughes: southern Australian podocerid amphipods 
91 
Point (34°36'S 150°54’E), 45-50 m, 1 February 1990, coll. The Ecology Lab 
for RMI/Pionccr Project (S1R1); 2 specimens, AM P.86076, off Providential 
Head, Wattamolla (34°08'S 151°08’30"E), 35^10 m, 11 January 1990, coll. 
The Ecology Lab for RMI/Pionccr Project; 1 specimen, AM P.86091, south 
east of Bermagui (36°26’S 150°14'06"E), 122 m, 5 Sep 1994, coll. FRV 
Southern Surveyor (SS05/94/155). 
Diagnosis. Pereonite 1 dorsal carina produced dorsally as 
two well developed humps, lateral and ventral projections 
absent. Pereonite 2 dorsal carina produced evenly, 
subtriangular, apically rounded. Gnathopod 1 propodus 
subtriangular with 5 robust setae near corner of palm. 
Gnathopod 2 propodus subovoid elongate, palm acute, 
concave, with one distal subquadrate tooth and a small 
palm defining tooth, without palm defining setae. Pereonite 
3 dorsal carina produced posteriorly, subtriangular, apically 
rounded, lateral projections present. Pereonites 4-7 dorsal 
carina produced posteriorly, subtriangular, apically subacute, 
lateral projections present. 
Pleonites 1-2 dorsal carina subtriangular, produced 
posteriorly, apically rounded, lateral projections present. 
Uropod 2 ventromedial spine as long as broad. 
Female Gnathopod 1 carpus rectolinear, 2.1 times as 
long as broad; propodus elongate, subtriangular, produced 
distally, 2.4 times as long as broad. Gnathopod 2 defined by 
tooth and 5 robust setae. 
Description. Based on male, 5.0 mm. AM P.86557. Body 
cuticle dorsally processiferous, with mainly posterior dorsal 
carina, without lateral and ventral carina. Head with well 
developed hump; eyes greatly bulging; lateral cephalic lobe 
subquadrate; anteroventral corner subquadrate. Mandible 
accessory setal row with 3 setae. Maxilla 1 palp distal margin 
with 4 robust setae. Pereonite 1 dorsal carina produced 
dorsally as two well developed humps, lateral and ventral 
projections absent. Pereonite 2 dorsal carina produced evenly, 
subtriangular, apically rounded. Coxae 1-3 discontiguous, 
coxae 4-7 contiguous. Gnathopod 1 coxa as broad as long, 
distoventral comer produced anteriorly, anteroventral comer 
subacute; basis 3 times as long as broad, with a few long 
slender anterodistal setae; carpus rectolinear, 2.3 times as 
long as broad; propodus subtriangular, twice as long as 
broad, anterior margin with clusters of long slender setae, 
palm margin smooth, with 5 robust setae near corner of 
palm; dactylus posterior margin with 5 serrate teeth, cuticle 
surface smooth, closing along palm. Gnathopod 2 basis 2.2 
times as long as broad, anterodistal comer rounded produced 
lobes, with short robust setae; merus posterior margin with 
narrow produced lobe, as long as broad, apically acute; 
propodus subovoid elongate, 3 times as long as broad, 
anterior margin with clusters of long slender robust setae, 
palm acute, concave, % length of propodus, with broad, well 
developed distal shelf, shelf margin crenulated, with one 
distal subquadrate tooth and a small palm defining tooth, 
without palm defining setae; dactylus closing along palm. 
Pereonite 3 dorsal carina produced posteriorly, subtriang¬ 
ular, apically rounded, lateral projections present. Pereonites 
4-7 dorsal carina produced posteriorly, subtriangular, 
apically subacute, lateral projections present. 
Pleonites 1-2 dorsal carina subtriangular, produced 
posteriorly, apically rounded, lateral projections present; 
Epimera 1-3 rounded. Urosome with 3 pair of uropods. 
Urosomite 1 short, twice as long as broad. Uropod 1 peduncle 
elongate, 4 times as long as broad, with well developed 
ventromedial spine twice as long as broad; inner ramus 1.1 
times peduncle length; outer ramus about 3 A length of inner 
ramus. Uropod 2 well developed, biramus; ventromedial 
spine as long as broad; outer ramus about half the length of 
inner ramus. Uropod 3 uniramus; rami with 2 apical setae. 
Telson dorsal lobe with 2 apical setae, lower margin without 
lateral or apical setae. 
Female (sexually dimorphic characters) based on female 
specimen, 5.4 mm , AM P.86558. Gnathopod 1 basis anterior 
margin with 3 robust setae; carpus rectolinear, 2.1 times as 
long as broad; propodus elongate, subtriangular, produced 
distally, 2.4 times as long as broad, palm with 5 robust setae; 
dactylus posterior margin with 3 serrate teeth. Gnathopod 
2 basis anterodistal corner rounded, with short robust setae; 
merus posterior margin broad, as broad as long, apically 
rounded, with 3 short robust setae; propodus subovate, twice 
as long as broad, anterior margin with a few long slender 
setae, palm straight, without distal shelf, defined by tooth 
and 5 robust setae. 
Remarks. This is the first description of a male specimen 
from near the type locality. The original description of P. 
inconspicuus from a single female specimen has lead to 
much confusion. 
Pirlot 1938 figured male and female specimens attributed 
to P. inconspicuus from Sulawesi. However when compared 
to the material illustrated here from closer to the type locality, 
Pirlot’s male specimen is less setose along the gnathopod 
2 propodus palm and does not have the small posterior 
proximal tooth. Therefore it appears that the Pirlot material 
is not P. inconspicuus, although a closely related fauna. 
Pirlot 1938 also placed P. palinuri K. H. Barnard 1916 into 
synonymy with P. inconspicuus, however P. palinuri is 
reinstated here as a valid species, due to the variation in the 
male gnathopod 2 propodus sculpting as outlined in growth 
stages in K. H. Barnard 1937. Material of P. inconspicuus 
illustrated by Nagata 1965 from Japan does not have 
sufficient sculpting along the male gnathopod 2 palm and is 
also remove from synonymy. 
Podocerus inconspicuus is similar to P. oliphant sp. nov. 
in the sculpting of the male gnathopod 2 propodus, however 
the later species has less pronounced lateral carinations and 
a more developed head bump. 
Distribution. Australia. New South Wales. Port Jackson, 
Bate Bay, Bass Point, Wattamolla, Bermagui (Stebbing, 
1888; current study). 
Podocerus lobatus (Haswell, 1885) 
Figs 18-21 
Dexiocerella lobata Haswell, 1885: 110, pi. 18, figs 6-8. 
Cyrtophium lobatum .— Chevreux and Guerne, 1888: 627. 
Platophium l .— Stebbing, 1888: 1184. 
Platophium orientale .— Della Valle, 1893: 333. 
Podocerus lobatus .— Stebbing, 1899: 239.—Pirlot, 1938: 
358, fig. 161.—Springthorpe & Lowry, 1994: 128.— 
Lowry & Stoddart, 2003: 246. 
Type material. Whereabouts unknown, presumed lost 
(Springthorpe and Lowry, 1994). Neotype, male, 4.2 mm, 
dissected, 4 slides, AM P.86212, east of South Head, Port 
Jackson, New South Wales (33°50’S 151°18'E), 23 m, host 
sponge: Holopsammaflavus, February 1973, coll. Australian 
Museum Shelf Benthic Survey. 
