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Records of the Australian Museum (2014) Vol. 66 
Female body broad oval, length to width ratio = 1.7, rostrum 
very broad, cephalosome width/rostrum = 2.8. Male antennule 
segment 2 triangular, denticle 1 on segment 4 C-shaped. 
Body length male 0.73 mm, female 0.93 mm, CR/L = 5.8%, 
CR 1/w = 1.05, H I. for (3 = 25%, GDS very broad width/ 
length = 1.6, arch 20% of length. Orange brown colour. 
Australia. (Plate 2C, p. 69). P. phyllosporum Harris & Robertson, 1994 
Large lateral area of fine setules on PI endopod. Female 
rostrum (Fig. II) a horizontal bar in ventral view (not 
triangular), not broad, cephalosome width/rostrum = 4.48. 
Denticle 1 on segment 4 of male antennule with serrate edge, 
2 small with lateral serrulation, 3 long, tooth-like. Body 
length male 0.54 mm, female 0.79 mm, CR/L = 11%, CR 
1/w = 2.4, H.I. for (3 = 14. GDS width/length = 1.5. Colour 
pale yellow. Australia. (Plate 1A, p. 67) . P. rastellum sp. nov. 
Ventral blade absent* Small lateral area of fine setules 
on PI endopod. Female P5 very broad, internal seta on 
baseoendopod very long, 85% of falciform ridge. Large 
serrated seta on P3 very long, 1.7 times length of endopod. 
Body length* male 0.48 mm, female 0.57 mm, CR/L 
= 5.5%, CR 1/w = 1.4, GDS w/1 = 1.34. Colour blood 
red. Aeotearoa (New Zealand) . P. erythrum Hicks, 1971 
6 First denticle on male antennule segment 4 pointed, comb-like, 
2 and 3 rounded denticulate or serrulate . 7 
- Denticles on male antennule segment 4 swollen or bulbous (not 
serrated or denticulate). 10 
7 GDS arch short, arch height/width 0.9, arch height/GDS 
length = 35% . 8 
- GDS arch high, arch height/width > 0.9, arch height/GDS 
length = > 40% . 9 
8 First denticle on male antennule pointed, 2 and 3 rounded 
serrulate. Body length male 0.63 mm, female length 0.73 mm, 
width/rostrum = 3.9, CR/L = 8.2%, CR 1/w = 1.75, H.I. for (3 = 
26%. Arch height 30% of GDS length, arch height/width = 0.7. 
Korea, Japan. P. brevicavum Kim & Kim, 1997 
9 First denticle on male antennule segment 4 pointed, comb¬ 
like, 2 and 3 denticulate pads, spine attached to anterior 
lobe at base of 8 seta. Body length male 0.68 mm, female 
0.94 mm, cephalosome width/rostrum = 4.2, CR/L = 11%, 
CR 1/w = 2.4, H.I. for J3 = 40%. Arch height 45% of GDS 
length, arch height/width =1.1. Colour orange brown. 
Japan, Korea. P. ofunatense Harris & Iwasaki, 1996 
- First denticle on male antennule segment 4 pointed, comb-like, 
2 and 3 small denticulate pads, no spine attached to anterior 
lobe. Body length male 0.58 mm, female 0.81 mm, cephalosome 
width/rostrum = 3.6, CR/L = 10.5%, CR 1/w = 2.6, H.I. for (3 
41 %. Arch height 45% of GDS length, arch height/width = 1.2. 
Bright yellow. Japan. P. kiiroum Harris & Iwasaki, 1996 
10 Denticles on segment 4 of male antennule bulbous (rounded) 
with feint serrulation unlike the typical pointed, tooth¬ 
like or denticulate pad of other species), short thick seta 
at base of anterior lobe, unique pinnate seta anterior to the 
first denticle on segment 4. Body length male 0.61 mm, 
female 0.76 mm, CR/L = 17%, CR 1/w = 2.1, H.I. for (3 = 
40-45%. Colour pale blue or pale brown with blue edge. 
Korea, Japan. (Plate 2D, p. 69). P. wandoensis Kim & Kim, 1997 
Notes: In doubtful cases, identification should be confirmed by reference to original description where details of the male antennule will be found. 
