INDEX 
PED 
cum by, 216 ; term loricata used 
by, 191 
Pediculus marinus, of Rondelet, 
352; of Seba, 354 
Pedunculata, order or suborder of 
Cirripedes, 11 
Pelocarcinus, synonym of Gecar- 
coidea, 80 
Peltogaster, 402, 409; purpureus, 
402; paguri, Rodriguezii, 403 
Penzidz defined, 213 
Penzidea defined, 213 
Penzus, 214; canaliculatus, cara- 
mote, monodon, semisulcatus, 
215; esculentus, 216; mem- 
branaceus, siphonoceras, 217; 
the petasma, 215; the thely- 
cum, 216; the development, 217 
Penguin, Eucopia australis ob- 
tained from a, 261 
Pentacheles euthrix, 200 
Perzon, alias thorax or trunk, 44 
Perzeopods, limbs of the five seg- 
ments immediately preceding 
the pleon, 44 
Pericera cornudo, 119 
Periceridz defined, 119 
Peripatus, genus assigned to the 
Myriapoda, or to the Oxycho- 
phora, 3 
Perrier, Prof. E., 103 
Peryscyphis, trivialis, 433; mean- 
ing of name, 434 
Petalidium, 221 
Petalomera pulchra (family Dro- 
mide), 136, 140 
Petalomera preoccupied, declivis 
(family Pseudocumidze), 308 
Petalophthalmus, 267; armiger, 
268 
Petalopus preoccupied, 308 
Petalosarsia, new generic name, 
declivis, 308 
Petasma, in Penzide and Serges- 
tid, 215 
Peteinura gubernata, huge tail of, 
220 
Petiver, name given to Scyllarus 
latus by, 192 
Petrolisthes Boscii, 173 
Philoscia, corsica, Couchii, elon- 
| 
459 
PLA 
gata, longicornis, muscorum, 
pubescens, pulchella, 430; ano- 
mala, bucculeutus, celleria, 431 
Philougria, synonym of Trichonis- 
cus, riparia, rosea, vivida, 422 
Philyra, 127; pisum, parasites 
upon, 128 
Phlyxia, connection of, with Eba- 
lia, 129; orbicularis, undecim- 
spinosa, 130 
Phoberus tenuimanus, 206 
Phreatoicide, 388 
Phreatoicidea, a new tribe, 388 
Phreatoicus described, 388; aus- 
tralis, typicus, 389; affinities 
discussed, 390 
Phryxiens, 393, 408 
Phryxus (preoccupied, but hitherto 
retained), paguri, resupinatus, 
409; longibranchiatus, 410; 
fusticaudatus, 411 
Phyllobranchiata, 155, 166, 180 
Phyllocarida, a suborder of the 
Branch‘opoda, 9; palzeozoic, 31 
Phyllodurus abdominalis, 418 
Phyllopoda, a suborder of the 
Branchiopoda, 9; large species 
of, 31 
Phyllosoma, larval form of Scyl- 
laride and Palinuride, 191, 198 
Phymacerite, the ‘tubercle at 
base of second antenna, con- 
taining external orifice of the 
green gland,’ 255 
Pigs hunting crabs, 159 
Pilumnoplax, 93 
Pilumnus, hirtellus, xanthoides, 
64 
Pinnixa, 103 
Pinnophylax, 100 
Pinnoteres, 99; meaning of name, 
100 
Pinnotheres, 99; stories about,100; 
ascidiicola, lithodomi, pholadis, 
pisum, vetcrum, 101 
Pinnotheride detined, 99 
Pinnotherion vermiforme, 408 
Pirimela denticulata, 64 
Pisa, 113; Gibbsii, tetraodon, tri- 
bulus, 116 
Plagusia, habits of, 98; chabrus, . 
