552 
THE VOYAGE OF H.M.S. CHALLENGER. 
Placostegus mdrchii, 624. 
ornatus, 522. 
tridentatus, 525, 526, 527. 
tricuspidatm, 523. 
Platynereis, 210, 212, 214. 
Pleurohrackia densa, 205. 
Polycirrus, 204. 
aurantiacus, 475. 
hocmcdodes, 475. 
kerguelensis, 475. 
nervosus, 475. 
Poly dor a, 378, 380. 
Polyeunoa Isevis, 7 6. 
Polymnia congruens, 446. 
Polynoe antarctica, 82. 
aacidioides, 109. 
asterolepis, 125, 131. 
attenuata, 120. 
australis, 113. 
capensis, 114. 
(Langerhansia) euplectellse, 108. 
foraminifera, 57. 
fullo, 83. 
• fidvovittata, 113. 
(Lepidonotus) iphiouoides, 116. 
islandiea, 7 0. 
lamellifera, 90. 
longicirra, 104. 
(Admetella) longipedata, 124. 
longisetis, 128. 
macrolepidota, 70. 
magnipalpa, 58, 118. 
(Makellicephala) miiabiUs, 121. 
ocellata, 126, 376. 
ocMlioibolepis, 131. 
platycirrus. 111, 113, 232. 
pellucida, 104. 
peronea, 61. 
pustulata, 115. 
rutilans, 128. 
scolopendrina, 76, 108, 120, 121. 
(Robertianella) synopbtbalma, 122. 
tenuisetis, 79. 
trocliiscophora, 67, 73. 
vesiculosa, 81. 
vittata, 128. 
zonata, 79. 
Polynoella levisetosa, 128. 
Pomatocerus howerhankii, 522. 
cariniferus, 522. 
Pomatocerus multicornis, 522. 
sanguinea, 522. 
strigiceps, 520. 
triquet&r, 520. 
Pontogenia, 53. 
Potamilla malmgreni, 486. 
oculifera, 486. 
torelli, 484. 
reniformis, 486. 
tortuosa, 486. 
Praxilla abyssorum, 408. 
arctica, 408. 
assimilis, 406. 
capensis, 404. 
challengerife, 404. 
collaris, 403. 
gracilis, 408. 
kerguelensis, 405, 407. 
kollilteri, 402, 406. 
lankesteri, 403, 407. 
occidentalis, 407. 
prcetermissa, 402, 405. 
sp., 408. 
Praxillinicola kroyeri (Crustacean parasite), 409. 
Prince, Ed. E., x. 
Prionognathus, 232. 
kefersteini, 234. 
Prionospio capensis, 381. 
steenstrupi, 382. 
Procercm picta, 204. 
Protula americana, 512. 
appendicidata, 514. 
arafurensis, 511. 
arctica, 511. 
capensis, 509. 
coccus, 511. 
lusitanica, ii, 511. 
multicostatus, 511. 
protensa, 510. 
Pseudonereis, 214. 
Psammolyce albicans, 147. 
arenosa, 147. 
fijiensis, 148. 
lierminice, 147. 
occidentalis ( = sombreriana), 146. 
petersi, 147. 
rigida, 147. 
sombreriana = occidentalis, 149. 
umhonifera, 147, 149. 
Psamocollus, 410. 
