ml@files@46408@46408-h@46408-h-37.htm.html#Page_259" class="pginternal">259.

patellaris, 494.

pectinarius, 493.

peregrinus, 492.

perforatus, 231.

upfilled parietal tubes of, 44.

perforatus, 494.

perplexus, 296.

picos, 206.

pictus, 493.

plicarius, 493.

plicatus, 337.

poecilus, 246.

polythalamius, 392.

porcatus, 256.

porosus, 493.

proteus, 492.

psittacus, 206.

punctatus, 267, 493.

puncturatus, 337.

pustula, 492.

pustularis, 235, 493.

pyramidalis, 494.

quadrivittatus, 284.

radiatus, 242, 494, 495.

rhomboicus, 494.

roseus, 279.

rugosus, 261.

sagittata, 493.

Scoticus, 256.

semiplicatus, 494.

spongeosus, 308.

spongicola, 225.

spongites, 308.

squamosus, 328, 494.

stalactiferus, 329.

stellaris, 494.

striatus, 494.

stultus, 216.

sublÆvis, 493.

sulcatinus, 293.

sulcatus, 256, 493.

terebratus, 285.

tertiarius, 494.

tesselatus, 256, 575.

none in Proteolepas, 587.

Cirripedia, their rank and affinities, 10 to 20.

Cirripedes, how their position is acquired, 127.

young, changes in, 128.

sessile, 33.

Clisia, genus, 496.

striata, 519.

Clitia, genus, 496.

verruca, 519.

Clysia, genus, 496.

Coldstream, Dr., on the shells of cirripedes, 33.

on a clicking noise, made by cirripedes, 64.

Columellina, genus, 424.

bissexlobata, 428.

Compartments of shell, number of, 39.

structure of, 43.

Concholepas Peruviana, inhabited by Cryptophialus, 567.

Conia, genus, 321.

depressa, 337.

Lyonsii, 343.

porosa, 329.

radiata, 343.

rosea, 335.

Conopea, genus, 177.

remarks on, 190.

elongata, 220.

ovata, 218.

Corals, effect of attachment to, in Balanus, 301.

Coronula, genus, 397.

balÆnaris, 415.

cementing apparatus of, 135.

barbara, 421.

bifida, 423.

bissexlobata, 428.

Californiensis, 428.

diadema, 417.

nervous system of, 88.

patula, 396.

reginÆ, 419.

sulcata, 394.

testudinaria, 392.

tubicinella, 431.

Coronula, genus, 382, 424, 430.

CoronulinÆ, sub-family of, 153.

Coronulites diadema, 421.

Creusia, sub-genus, 375.

Childreni, 382.

decorata, 382 ref="@public@vhost@g@html@files@46408@46408-h@46408-h-9.htm.html#Page_95" class="pginternal">95.

of pupa, 113.

of reproduction, 97.

for cementing, 133.

in the pupa, 122.

Orifice of shell, 38.

Otolithes absent in Crustacea, 97.

Ova, sizes of, 101.

Ovaria, 100.

incipient, in pupa, 122.

occupy a chamber in the shell in Coronula, 411.

in Proteolepas, 597.

Owen, Prof., on Metagenesis, 124.

on vegetative repetition, 20.

Pachylasma, genus, 475.

structure of alÆ, 36.

giganteum, 172, 477.

aurantiacum, 480.

Palpi, structure of, 75.

absent in Alcippe, 540.

peculiar in Cryptophialus, 572.

in Proteolepas, 590.

Parasite, allied to Bopyrus, 102.

Parietes of shell, 43.

internal lamina of, cancellated, 213.

perforated in Acasta, 305.

with numerous rows of pores in Tetraclita, 323.

much folded in Coronula, 399.

Penis, probosciformed, 99.

imperforate, 102, 271.

its reparation, 159.

of wonderful length in Cryptophialus, 586.

Perforations in shell of Acasta, 305.

Phyllosoma, affinities to cirripedes, 18.

Platylepas, genus, 424.

bissexlobata, 428.

decorata, 429.

cementing apparatus of, 143.

pulchra, 428.

Poecilasma KÆmpferi, 499.

Pollicipes compared with sessile cirripedes, 34, 41, 52.

Polylepas, genus, 397.

Polytrema, genus, 321.

Position of cirripedes, how acquired, 127.

Potash, caustic, action on shell, 56.

Primordial valves, 51.

Tergum, occludent ledge and shape of, in Pyrgoma,

                                                                                                                                                                                                                                                                                                           

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