The Project Gutenberg eBook of A Monograph on the Sub-Class Cirripedia (Volume 2 of 2), by Charles Darwin

Plate XX.

George Sowerby.

PACHYLASMA : OCTOMERIS : CATOPHRAGMUS .

Plate XXI.

Verruca Strömia.

Plate XXI., figure 1 a.

Verruca Strömia.

Plate XXI., figure 1 b.

Verruca Strömia, scutum and tergum.

Plate XXI., figure 1 c.

Verruca Strömia, var.

Plate XXI., figure 1 d.

Verruca Strömia.

Plate XXI., figure 1 e.

Verruca Strömia, scutum and tergum.

Plate XXI., figure 1 f.

Verruca Spengleri, scutum.

Plate XXI., figure 2.

Verruca lævigata, scutum and tergum.

Plate XXI., figure 3 a.

Verruca lævigata, scutum and tergum.

Plate XXI., figure 3 b.

Verruca prisca, scutum and tergum.

Plate XXI., figure 4.

Verruca nexa.

Plate XXI., figure 5.

Point of attachment of Verruca Spengleri.

Plate XXI., figure 6.

George Sowerby.

VERRUCA .

Plate XXII.

Alcippe lampas.

Plate XXII., figure 1.

Alcippe lampas.

Plate XXII., figure 2.

Point of attachment of Alcippe lampas.

Plate XXII., figure 3.

Alcippe lampas.

Plate XXII., figure 4.

Alcippe lampas.

Plate XXII., figure 5.

Alcippe lampas.

Plate XXII., figure 6.

Alcippe lampas.

Plate XXII., figure 7.

Alcippe lampas.

Plate XXII., figure 8.

Alcippe lampas.

Plate XXII., figure 9.

Alcippe lampas.

Plate XXII., figure 10.

Alcippe lampas.

Plate XXII., figure 11.

Alcippe lampas.

Plate XXII., figure 12.

Alcippe lampas.

Plate XXII., figure 13.

Alcippe lampas.

Plate XXII., figure 14.

Alcippe lampas.

Plate XXII., figure 15.

George Sowerby.

ALCIPPE LAMPAS .

Plate XXIII.

ALCIPPE .

Male of Alcippe lampas.

Plate XXIII., figure 16.

Male of Alcippe lampas.

Plate XXIII., figure 17.

Male of Alcippe lampas.

Plate XXIII., figure 18.

Male of Alcippe lampas.

Plate XXIII., figure 19.

Cryptophialus minutus.

Plate XXIII., figure 1.

Cryptophialus minutus.

Plate XXIII., figure 2.

Cryptophialus minutus.

Plate XXIII., figure 3.

Cryptophialus minutus.

Plate XXIII., figure 4.

Cryptophialus minutus.

Plate XXIII., figure 5.

Cryptophialus minutus.

Plate XXIII., figure 6.

Cryptophialus minutus.

Plate XXIII., figure 7.

Cryptophialus minutus.

Plate XXIII., figure 8.

Cryptophialus minutus.

Plate XXIII., figure 9.

George Sowerby.

CRYPTOPHIALUS.

Plate XXIV.

CRYPTOPHIALUS .

Cryptophialus minutus.

Plate XXIV., figure 10.

Cryptophialus minutus.

Plate XXIV., figure 11.

Cryptophialus minutus.

Plate XXIV., figure 12.

Cryptophialus minutus.

Plate XXIV., figure 13.

Cryptophialus minutus.

Plate XXIV., figure 14.

Cryptophialus minutus.

Plate XXIV., figure 15.

Cryptophialus minutus.

Plate XXIV., figure 16.

Cryptophialus minutus.

Plate XXIV., figure 17.

Cryptophialus minutus.

Plate XXIV., figure 18.

Cryptophialus minutus.

Plate XXIV., figure 19.

Proteolepas bivincta.

Plate XXIV., figure 1.

Proteolepas bivincta.

Plate XXIV., figure 2.

Proteolepas bivincta.

Plate XXIV., figure 3.

Mouth of an ordinary cirripede.

Plate XXIV., figure 4.

Proteolepas bivincta.

Plate XXIV., figure 5.

George Sowerby.

PROTEOLEPAS.

Plate XXV.

PROTEOLEPAS.

Proteolepas bivincta.

Plate XXV., figure 6.

Proteolepas bivincta.

Plate XXV., figure 7.

Balanus tintinnabulum, section.

Plate XXV., figure 1.

Balanus perforatus, testes.

Plate XXV., figure 2.

Balanus tintinnabulum, branchia.

Plate XXV., figure 3.

George Sowerby.

BALANUS.

Plate XXVI.

Balanus perforatus, mouth.

Plate XXVI., figure 1.

Balanus improvisus, mouth.

Plate XXVI., figure 2.

Coronula balænaris, mouth.

Plate XXVI., figure 3.

Coronula balænaris, mouth.

Plate XXVI., figure 4.

Balanus amaryllis, mandible.

Plate XXVI., figure 5.

Balanus amaryllis, palpus.

Plate XXVI., figure 6.

Balanus amaryllis, maxilla.

Plate XXVI., figure 7.

Coronula diadema, thorax.

Plate XXVI., figure 8.

George Sowerby.

MOUTH:THORAX.

Plate XXVII.

Coronula diadema, nervous system.

Plate XXVII., figure 1.

Balanus tintinnabulum, nervous system.

Plate XXVII., figure 2.

Balanus tintinnabulum, acoustic sac.

Plate XXVII., figure 3.

Coronula diadema, acoustic sac.

Plate XXVII., figure 4.

Balanus tintinnabulum, eye.

Plate XXVII., figure 5.

George Sowerby.

NERVOUS SYSTEM.

Plate XXVIII.

Coronula balænaris, cementing apparatus.

Plate XXVIII., figure 1 a.

Coronula balænaris, cementing apparatus.

Plate XXVIII., figure 1 b.

Coronula balænaris, cementing apparatus.

Plate XXVIII., figure 1 c.

Chelonobia patula, cementing apparatus.

Plate XXVIII., figure 2.

Tubicinella trachealis, cementing apparatus.

Plate XXVIII., figure 3.

Balanus tintinnabulum, cementing apparatus.

Plate XXVIII., figure 4 a.

Balanus tintinnabulum, cementing apparatus.

Plate XXVIII., figure 4 b.

George Sowerby.

CEMENTING APPARATUS.

Plate XXIX.

CIRRI.

Balanus amphitrite, var. cirratus, sixth cirrus.

Plate XXIX., figure 1.

Acasta sulcata, fourth cirrus.

Plate XXIX., figure 2.

Chthamalus antennatus, third cirrus.

Plate XXIX., figure 3.

Balanus perforatus, second cirrus.

Plate XXIX., figure 4.

Xenobalanus globicipitis, third cirrus.

Plate XXIX., figure 5.

Xenobalanus globicipitis, sixth cirrus.

Plate XXIX., figure 6.

Various species, spermatozoa.

Plate XXIX., figure 7.

Scalpellum vulgare, larva.

Plate XXIX., figure 8.

Balanus balanoides, larva.

Plate XXIX., figure 9.

Chthamalus stellatus, larva.

Plate XXIX., figure 10.

George Sowerby.

LARVÆ, FIRST STAGES.

Plate XXX.

Species of Lepas, larva (second stage).

Plate XXX., figure 1.

Lepas australis, larva (last stage).

Plate XXX., figure 2.

Lepas australis, larva (last stage).

Plate XXX., figure 2 a.

Young cirripede.

Plate XXX., figure 3.

Young cirripede, primordial un-calcified valve.

Plate XXX., figure 3 a.

Pupa, ventral surface.

Plate XXX., figure 4.

First pair of natatory legs.

Plate XXX., figure 5.

Abdomen and two caudal appendages.

Plate XXX., figure 6.

Pupa, transverse section, near eye-apodemes.

Plate XXX., figure 7.

Terminal portion of an antenna.

Plate XXX., figure 8.

George Sowerby.

LARVÆ, LAST STAGES.