814 + 21 pp. Illustrated with 115 plates
and 22 woodcuts.
This Report is bound in the H.M.S.
Challenger Reports, Volume 25, 1888.
This electronic edition prepared by Dr.
David C. Bossard
from original documents in the library holdings of
Dartmouth College, Hanover New Hampshire.
May, 2004.
Copyright © 2004 by David C. Bossard.
This report concludes the account of the
Sponges collected by the Expedition. The Reports dealing with this
large group have been published as follows:—
Part XXIV. (Volume VIII.), Report on the
Calcarea, by N. Poléjaeff, published in 1883.
Part XXXI. (Volume XI.), Report on the Keratosa, by
N. Poléjaeff, published in 1884.
Part LIX. (Volume XX.), Report on the Monaxonida, by
S.O. Ridley and A. Dendy, published in 1887.
Part LIII. (Volume XXI.), Report on the
Hexactinellida, by F.E. Schulze, published in 1887.
Part LXIII. (Volume XXV.) Report on the
Tetractinellida, by W.J. Sollas, publshed in 1888.
 Cinachyra barbata, Plate III |
 Epallax callocyathus, Plate X |
 Synops neptuni, Plate XXIV |
 Cydonium magellani, Plate XXI |
 Tetilla grandis, Plate V |
Left Section at 800 ppi |
 Middle Section at 800 ppi |
 Right Section at 800 ppi |
1. General Structure --The Rhagon; Types of Chamber-System, Eurypylous, Aphodal, and Diplodal; Ectosome and Choanosome; Subdermal and Subcortical Cavities. Types of Canal System; the Oscule and Pores; Secondary Canals or Epochetose System, xiii-xxxv xiii xiv xv xvi xvii xviii xix xx xxi xxii xxiii xxiv xxv xxvi xxvii xxviii xxix xxx xxxi xxxii xxxiii xxxiv xxxv
2. HISTOLOGY. -- Collenchyme and Collencytes, Sarcenchyme and Sarconcytes, Cystenchyme, Chondrenchyme, Thesocytes, Chromatocytes, Inocytes, Myocytes, Æsthocytes, Protoplasmic Continuity, Scleroblasts, Genital Products, xxxv-xlvii xxxv xxxvi xxxvii xxxviii xxxix xl xli xlii xliii xliv xlv xlvi xlvii
3. THE SKELETON. -- Skeletal Elements, Opal, and Spongin; Spicules, Structure, Classification, Ontogeny, Phylogeny, Ætiology of Spicules; Types of Arrangement; Extrusion of Spicules; Source of the Silica of Flints, xlvii-xci xlvii xlviii xlvix l li lii liii liv lv lvi lvii lviii lix lx lxi lxii lxiii lxiv lxv lxvi lxvii lxviii lxix lxx lxxi lxxii lxxiii lxxiv lxxv lxxvi lxxvii lxxviii lxxvix lxxx lxxxi lxxxii lxxxiii lxxxiv lxxxv lxxxvi lxxxvii lxxxviii lxxxix xc xci
4. ONTOGENY xci xci
5. CLASSIFICATION. -- Position of the Sponges in the Animal Kingdom, Subdivision into
Classes; Classification of the Tetractinellida; Description of Families and Genera, xcii-clix xcii xciii xciv xcv xcvi xcvii xcviii xcix c ci cii ciii civ cv cvi cvii cviii cix cx cxi cxii cxiii cxiv cxv cxvi cxvii cxviii cxix cxx cxxi cxxii cxxiii cxxiv cxxv cxxvi cxxvii cxxviii cxxix cxxx cxxxi cxxxii cxxxiii cxxxiv cxxxv cxxxvi cxxxvii cxxxviii cxxxix cxl cxli cxlii cxliii cxliv cxlv cxlvi cxlvii cxlviii cxlvix cl cli clii cliii cliv clv clvi clvii clviii clix
6. NOTE on PHYLOGENY, clx, clxi clx clxi
7. METHODS OF INVESTIGATION, . . . . . . . . clxi-clxvi clxi clxii clxiii clxiv clxv clxvi
DESCRIPTION OF THE SPECIES
