Illustration of the angles in head morphology of the flea family Tungidae with its two species chigoe and sticktight species, 1976. Image courtesy...
Illustration of the pronotal and genal combs used in identifying fleas belonging to the most common and important flea family Pulicidae, 1976. Image...
Illustration of the shapes of the seventh sternum in female fleas, used for species identification, 1976. Image courtesy CDC.
Illustration of the male flea sexual organs with watch spring-like structure, located in the terminal abdominal segments, 1976. Image courtesy CDC.
Illustration of the angular head and short thorax, identifying characteristics for fleas from the family Tungidae, 1976. Image courtesy CDC.
Illustration of the chigoe flea , its identifying morphologic characteristics of small bristles on the head and sparse bristles on the inner coxa,...
Illustration of cat and dog fleas with highlighted identifying characteristic of a horizontal genal comb in the head region, 1976. Image courtesy CDC.
Illustration of the rabbit flea species with highlighted identifying characteristic of a vertical genal comb in the head region, 1976. Image courtesy...
Illustration of the abdomen terga morphology of fleas from the family Pulicidae, with one row on setae on each terga , 1976. Image courtesy CDC.
Illustration of cat flea identifying characteristics, a rounded head and thorax with larger length than the first abdominal plate, 1976. Image...
Illustration of the sticktight flea and its identifying morphologic characteristcs, the large head bristles and the spinelets on the third thoracic...
Illustration of the morphology of the seventh exoskeletal tergite with antepygidial bristles in fleas, 1976. Image courtesy CDC.
Illustration of flea morphology with both genal and pronotal combs, the presence of which indicates either of the two genera, rabbit fleas or cat and...
Illustration of the abdominal morphological characteristics typical for a female flea, pigydium and antepygidial bristles , 1976. Image courtesy CDC.
Illustration of the morphological characteristics of the mouth region in fleas, used for species identification, 1976. Image courtesy CDC.
Illustration of the five parts and morphological characteristics of a flea leg, 1976. Image courtesy CDC.
Ocular and postantennal setae on a flea head, illustration, 1976. Image courtesy Centers for Disease Control .
Fleas antennae, location and morphology, illustration, 1976. Image courtesy Centers for Disease Control .
Morphologic characteristics in the head region of a flea, illustration, 1976. Image courtesy Centers for Disease Control .
Major morphological regions of flea, illustration, 1976. Image courtesy Centers for Disease Control .
Fleas piercing and sucking mouthparts, illustration, 1976. Image courtesy Centers for Disease Control .
Morphologic characteristics of a flea, two different perspectives illustration, 1976. Image courtesy Centers for Disease Control .
Morphologic changes in a flea life cycle, illustration, 1976. Image courtesy Centers for Disease Control .
Tapeworm morphology of a gravid proglottid revealed in a micrograph film, 1986. Image courtesy Centers for Disease Control .
Tapeworm proglottids organ morphology revealed in a micrograph film, 1986. Image courtesy Centers for Disease Control .
Tapeworm scolex four suckers morphology revealed in a micrograph film, 1986. Image courtesy Centers for Disease Control .
Illustrated plate engraving by Abraham de Blois after an original work by William Faithorne, from the 1703 edition of 'Methodus Pantarum Nova' by...
Print by A. De Blois after painting by William Faithorne . John Ray was first a student and later a lecturer at Cambridge University, where he became...
Illustration of the highly jointed leg morphology of fleas, specialized for jumping, 1976. Image courtesy CDC.
Photomicrograph showing the buccal cavity morphology of a hookworm in its rhabiditiform larval stage, 1979. Image courtesy CDC.
Photomicrograph with a detailed view of the short buccal cavity morphology in the rhabditiform larval stage of a Strongyloides species nematode ,...
Francis Maitland Balfour Scottish-born British embryologist; brother of AJ Balfour; killed in climbing accident on Mont Blanc, Switzerland. Wood...
