Ticks and Disease |
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Page 171
... nuclei . The spermatogonium is the smallest cell in the testis . The spherical nucleus is relatively large and possesses a distinct nucleolus and a fine linin network within whose interstices fine granules of chro- matin are scattered ...
... nuclei . The spermatogonium is the smallest cell in the testis . The spherical nucleus is relatively large and possesses a distinct nucleolus and a fine linin network within whose interstices fine granules of chro- matin are scattered ...
Page 172
... nucleus ( Fig . 61 ) . This tail is cytoplasmic initially , but subsequently forms a hollow tube through which several deeply staining filaments run . Finally the whole tail shrinks and assumes the form of a knotted thread which ...
... nucleus ( Fig . 61 ) . This tail is cytoplasmic initially , but subsequently forms a hollow tube through which several deeply staining filaments run . Finally the whole tail shrinks and assumes the form of a knotted thread which ...
Page 174
... nucleus , the conical centrosomal corpuscle united with nucleus and the plasma - rod with its staining cord . Warren ( 1931 ) , working on the South African red tick Rhipi- cephalus evertsi , found a tangle of " spermatophore cords ...
... nucleus , the conical centrosomal corpuscle united with nucleus and the plasma - rod with its staining cord . Warren ( 1931 ) , working on the South African red tick Rhipi- cephalus evertsi , found a tangle of " spermatophore cords ...
Contents
INTRODUCTION | 1 |
CUTICLE THE KEY TO TICK ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT SPECIES 27 | 27 |
Copyright | |
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Common terms and phrases
activity Africa Amblyomma andersoni animals appear areas argasid Argasidae attached Babesia basis capituli bite body Boophilus broad capitulum cattle cells Cervical grooves cheliceral colour coxa coxal cuticle cytoplasm Dermacentor disease dogs dorsal view eggs endocuticle engorged epicuticle evertsi external spur feeding fluid fully fed genus granules Haemaphysalis hairs hard ticks hexagonus Hoogstraal host humidity Hyalomma hypostome infection inner Ixodes ricinus large number larvae larvae and nymphs lateral layer Lees legs length louping ill lumen male mammals membrane microplus moult muscles Nuttall nymphal nymphs nymphs and adults occur palp palpi parasites pathogens period persicus pharynx posterior margin punctations rabbits relapsing fever reported Rhipicephalus rickettsiae rounded salivary glands sanguineus scutum sheep skin soft ticks spermatophore spiracle Spiracular plate spirochaetes spotted fever spur on coxa surface tarsus tarsus IV temperature Theileria tick species tissues transmission transmitted transverse unfed females variabilis vector ventral virus whilst