The Apodida: A Morphological Study |
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Page 5
... segments would certainly also serve to rake food together into the middle line and forward it towards the mouth . From this very simple and natural modification of a Chatopodan Annelid , we believe that all the Crustacea , living or ...
... segments would certainly also serve to rake food together into the middle line and forward it towards the mouth . From this very simple and natural modification of a Chatopodan Annelid , we believe that all the Crustacea , living or ...
Page 6
... segments of such an Annelid for the purpose of browsing . The trunk of Apus will be shown to be a true link between the many - segmented Annelids , and the Crustacea with their small and almost constant number of segments . The rise of ...
... segments of such an Annelid for the purpose of browsing . The trunk of Apus will be shown to be a true link between the many - segmented Annelids , and the Crustacea with their small and almost constant number of segments . The rise of ...
Page 8
... segments bent round ventrally , Limulus must have had a similar origin . In the second section we venture into the dangerous realm of the Trilobites . The mystery which surrounds these primitive Crustacea is so great , that every ...
... segments bent round ventrally , Limulus must have had a similar origin . In the second section we venture into the dangerous realm of the Trilobites . The mystery which surrounds these primitive Crustacea is so great , that every ...
Page 11
... segments of an annulate body . Our derivation of Apus from a browsing Annelid explains the method . of this fusion , that it did not take place along the longitudinal axis of the body , but by a doubling of this number of segments upon ...
... segments of an annulate body . Our derivation of Apus from a browsing Annelid explains the method . of this fusion , that it did not take place along the longitudinal axis of the body , but by a doubling of this number of segments upon ...
Page 12
... segments of a carnivorous Annelid ; the first five being bent round ;, the prostomium with two pairs of eyes and a median cirrus . 1 , the 1st segment carrying a pair of antennæ , its under edge projecting backwards as the lower lip ...
... segments of a carnivorous Annelid ; the first five being bent round ;, the prostomium with two pairs of eyes and a median cirrus . 1 , the 1st segment carrying a pair of antennæ , its under edge projecting backwards as the lower lip ...
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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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