The Voyage of H.M.S. Challenger Zoology 31 Report on the Keratosa

REPORT

of the

SCIENTIFIC RESULTS

of the

VOYAGE OF H.M.S. CHALLENGER
DURING THE YEARS 1873-76

under the command of
Captain GEORGE S. NARES, R.N. F.R.S.

and the late
Captain FRANK TOURLE THOMSON, R.N.

Prepared under the Superintendence of

the late
Sir. C. WYVILLE THOMSON, Knt., F.R.S., &c.
Regius Professor of Natural History in the University of Edinburgh
Director of the Civilian Scientific Staff on board

and now of
JOHN MURRAY, LL.D., Ph. D. &c.
One of the naturalists of the expedition.

ZOOLOGY Part XXXI

1884

Report on the Keratosa collected by H.M.S. Challenger during the Years
1873-1876.

by

N. Poléjaeff, M.A.,
of the University of Odessa.

(Received 16th April 1884)

88 pp. Illustrated with 10 plates.

This Report is bound in the H.M.S. Challenger Reports, Volume 11, 1884.

This electronic edition prepared by Dr. David C. Bossard
from original documents in the library holdings of
Dartmouth College, Hanover New Hampshire.

June, 2004.

Ianthella flabelliformis, half natural size Plate I	Cacospongia murrayi, natural size Plate IV
Cacospongia dendroides, natural size Plate VIII	Verongia tenuissima, natural size Plate X

A high resolution (800 ppi) world map showing the H.M.S. Challenger Track and Sounding Stations
is available here in three sections.
From Zoology Volume LIII, 1887.

Click on image for map at 200 ppi.

Left Section at 800 ppi

Middle Section at 800 ppi

Right Section at 800 ppi

CONTENTS

INTRODUCTION 1   001 002

I. ORGANIZATION AND CLASSIFICATION OF THE KERATOSA 2   002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021

II. CRITICISM OF THE GENERA 21   021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037

III. DESCRIPTION OF THE SPECIES 37
    Darwinellidæ 37   037 038 039 040 041
    Spongelidæ 41   041 042 043 044 045 046 047 048 049 050
    Spongidæ 50   050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069
    Aplysinidæ 69   069 070 071 072 073

BATHYMETRICAL TABLE 73   073 074

IV. CONCLUDING REMARKS 75   075 076 077 078 079 080 081 082 083 084 085 086

CONTENTS 87   087 088

PLATES.

#	Click for plate at 100 ppi	DESCRIPTION
01 I	Plate at 200 ppi	description
02 II	Plate at 200 ppi	description
03 III	Plate at 200 ppi	description
04 IV	Plate at 200 ppi	description
05 V	Plate at 200 ppi	description
06 VI	Plate at 200 ppi	description
07 VII	Plate at 200 ppi	description
08 VIII	Plate at 200 ppi	description
09 IX	Plate at 200 ppi	description
10 X	Plate at 200 ppi	description