Lectures on the Comparative Anatomy and Physiology of the Invertebrate Animals: Delivered at the Royal College of Surgeons, in 1843 |
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Page 26
... dilating , have been observed . Roesel first figured this contractile vesicle in the Vorticella . In Euodon , in ad- dition to these vesicles , Ehrenberg likewise discerned another organ , of an oval shape , of a dull white colour , and ...
... dilating , have been observed . Roesel first figured this contractile vesicle in the Vorticella . In Euodon , in ad- dition to these vesicles , Ehrenberg likewise discerned another organ , of an oval shape , of a dull white colour , and ...
Page 36
... dilation or rec- tum ; sometimes the intestine is complicated with many cæca , as in Diglena and Megalotrocha . Most of the species have , just behind the pharynx , or continued . from the stomach , two large oval glandular sacs ...
... dilation or rec- tum ; sometimes the intestine is complicated with many cæca , as in Diglena and Megalotrocha . Most of the species have , just behind the pharynx , or continued . from the stomach , two large oval glandular sacs ...
Page 53
... dilated part of the uterus . Their office seems to be to cement together the ova in hard cylindrical masses by forming a crust around them , in which state they are found in the detached joints . This is the first example which we have ...
... dilated part of the uterus . Their office seems to be to cement together the ova in hard cylindrical masses by forming a crust around them , in which state they are found in the detached joints . This is the first example which we have ...
Page 65
... dilated intestine ; it terminates in an obtuse anal extremity , from the inner side of which project the intromittent spiculum and its sheath . The species called Spiroptera Hominis was founded by Rudolphi on some small nematoid worms ...
... dilated intestine ; it terminates in an obtuse anal extremity , from the inner side of which project the intromittent spiculum and its sheath . The species called Spiroptera Hominis was founded by Rudolphi on some small nematoid worms ...
Page 69
... dilated and simple in the thicker division of the body , at the pos- terior extremity of which it terminates in a contracted straight tube , which may be called the rectum : the anus is transverse and bi - labiate . In the Strongylus ...
... dilated and simple in the thicker division of the body , at the pos- terior extremity of which it terminates in a contracted straight tube , which may be called the rectum : the anus is transverse and bi - labiate . In the Strongylus ...
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Common terms and phrases
abdomen alimentary canal analogous Anatomy Anellides animal animalcules antennæ aperture appendages Ascidians attached Belemnite bivalves blood body branchiæ branchial Bryozoa calcareous cavity cells cephalic Cephalopods chords ciliated cloth colour compound eyes consists Crustacea Cuvier developed digestive dilated Diseases distinct dorsal duct Edition elongated embryo Entozoa external extremity eyes female filaments fluid ganglion Gasteropods genus germinal vesicle gills glands head horny Infusoria insects integument interspace intestine jointed larva larvæ layer LECTURE legs locomotive London longitudinal male mandibles mantle margin mass maxillæ membrane metamorphosis minute Mollusca mouth muscles muscular fibres muscular system Nautilus nerves nervous system observed ocelli oesophagus organisation organs orifice ovaria oviduct ovum pair parasitic plates polypes posterior present processes radiated respiratory rudimental segments shell side siphon slender species spiders spines stomach structure surface tentacles tentacula terminal thorax tissue transverse tube tunic vascular ventral vesicle vessel visceral wings worm
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