The Apodida: A Morphological Study |
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Page 11
... ventral surface . In reality , however , this " doubling " is the true description of the Crustacean head as shown in Figs . 1 and 2 ; these should be further compared with Fig . 46 , p . 212 , which represents a longitudinal section of ...
... ventral surface . In reality , however , this " doubling " is the true description of the Crustacean head as shown in Figs . 1 and 2 ; these should be further compared with Fig . 46 , p . 212 , which represents a longitudinal section of ...
Page 14
... ventral parapodia of the anterior trunk segments ; hence we find it modified into two lateral projections , the middle part of the fold being merely indicated by a low ridge , which is not sufficient to form a barrier across the ventral ...
... ventral parapodia of the anterior trunk segments ; hence we find it modified into two lateral projections , the middle part of the fold being merely indicated by a low ridge , which is not sufficient to form a barrier across the ventral ...
Page 16
... segment , and differentiate from before backward , those furthest from the anal segment being the most developed . In Apus , we find in front of the anal segment five segments with no limbs developed , with no ventral 16 PART I THE APODIDÆ.
... segment , and differentiate from before backward , those furthest from the anal segment being the most developed . In Apus , we find in front of the anal segment five segments with no limbs developed , with no ventral 16 PART I THE APODIDÆ.
Page 17
... ventral ganglia , and with no organs except the most necessary , viz . , the intestinal tube and the musculature . Then follows a row of rudimentary segments , each with a minute pair of limbs and a pair of ganglia , which increase in ...
... ventral ganglia , and with no organs except the most necessary , viz . , the intestinal tube and the musculature . Then follows a row of rudimentary segments , each with a minute pair of limbs and a pair of ganglia , which increase in ...
Page 21
... ventral and lateral parts remained soft and flexible . We also find certain parts of the body thickened for protection against other parts . Thus the outer edges of the under lips are thickened for protection against the working of the ...
... ventral and lateral parts remained soft and flexible . We also find certain parts of the body thickened for protection against other parts . Thus the outer edges of the under lips are thickened for protection against the working of the ...
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Common terms and phrases
2nd Edit 3rd Edit acicular glands animal Annelidan antennæ Apodidæ appendages Apus bending body brain canal carnivorous Annelid chitinous Cirripedia Cladocera cœlom Crustacea cuticle deduce developed diverticula dorsal parapodium dorsal shield eggs ENGLISH epithelium ESSAYS Eurypterus excretory exoskeleton eye of Apus fold function ganglia genital Globe 8vo gradually groups head-shield higher Crustacea HISTORY homology hypodermis Illustrated intestinal jaws labrum larva larvæ lateral limbs of Apus Limulus longitudinal Malacostraca mandibles masticatory ridges maxillæ membrane ment mid-gut modern Crustacea morphological mouth muscle bands musculature Nauplius nephridia nerves number of segments ocelli œsophageal commissures original Annelid Ostracoda pair of limbs paired eyes Phyllopodan POEMS position posterior primitive Crustacean probably Prof prostomium Pterygotus pygidium round rudimentary second antennæ sensory cirrus sensory organs SERMONS shell gland sinus specialised surface theory tion Tracheata Trilobites trunk limbs trunk segments tube unpaired eye ventral parapodia vols
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