Pie NIBNOLES, 
No. VII. 
PLEURONECTHS. 
(THE Paice.) 
BY 
F. J. Coun, Jesus College, Oxford, 
Lecturer in the Victoria University, Demonstrator of Zoology, 
University College, Liverpool ; 
AND 
J. JOHNSTONE, 
B.Sc., Lond., 
Fisheries Assistant, University College, Liverpool. 
CONTENTS. 
INTRODUCTION. 
PAGE PAGE 
A. EXTERNAL CHARACTERS ... .4 | EH. NERVOUS SYSTEM ..........0 103 
Asymmetry of Plaice 8 and 184 1. Brain and Spinal Cord... 103 
18)... (Sieeob ora tHON' cpesdsnsoqseode oaoeocdeL 11 2. Cranial Nerves ............ 110 
Skull and visceral arches... 11 Component Theory ...... 111 
Vertebral column ,........... 40 V.-VIL. Gomplex......... 121 
WTedian HIS) rewe+sssoescecrn ss 49 NesProfaundus Vi...co--ss- 125 
Limb girdles and paired xX Gomplex v.<.tscceseaes 138 
isbeG} So sceeosoce¢ condena0 Tac noLooee 58 3. Spinal Nerves ............ 145 
C. Bopy Cavity AND VISCERA 63 4. Sympathetic ............... 156 
1. Coelomic Spaces ......... G30 REE OENSH ORGANS cocseseccoccmonses 163 
2. Alimentary canal and 1. Lateral Sense Organs ... 163 
GalGhaGlS cc’ cng aouoooDOriSeneee 63 PL -ASTCRE\ cconobapubobodencocnada: 171 
3. Ductless glands............ 73 Boy HVS) Ressctcesesecescs Sseiees 174 
4. Renal organs............++. 77 Discussion of Asymmetry 8 
D. Broop VascunaRr SysTEM... 84 and 184 
Structure of Gills ............ 87 OV ALDI 8 Ceeecooaascapnadncodcoag6ee 190 
Pseudobranch.............s000 96 | G. REPRODUCTIVE ORGANS...... 193 
APPENDIX—ECONOMIC. 
A. Lirm History aNnD HaBits.— 
Distribution and 
Spawning 
D 
| B. Puatice FISHERIES .— 
Regulations and Remedial 
Measures wercerreceeeree sfiione 219 
