A morphological study of Leranathropus Rathbuni Willson, 1922 (Crustacea, Copepoda) / by Kenneth Wayne Burris.
| Author/creator | Burris, Kenneth Wayne, 1941- author. |
| Other author | Belcik, Francis P., degree supervisor. |
| Other author | East Carolina University. Department of Biology. |
| Format | Theses and dissertations |
| Production | 1967. |
| Description | 43 leaves : illustrations ; 28 cm |
| Supplemental Content | Access via ScholarShip |
| Subjects |
| Summary | The biology of a marine parasitic copepod, Lernanthropus rathbuni Wilson, 1922, was made the subject of a detailed study. Particular attention was devoted to its internal anatomy and functional morphology. A variety of optical and microtechnical methods were brought to bear on these problems. The external anatomy of both the male and the female were described, that of the male for the first time. The males are different from the female in size, structure of third thoracic legs, reduced dorsal plate, absence of fifth thoracic legs and first maxillae. Appendages of both sexes include the following: A seven segmented first antenna, a second antenna modified into a clasping structure, a sickle-shaped mandible with a toothed inner margin, prehensile first (absent in male) and second maxillae, first and second maxillipeds of two segments with a terminal claw, first and second pairs of thoracic legs consisting of endopod and exopod, third thoracic legs flipper-like in female and biramous in male, fourth thoracic legs biramous in both sexes, and fifth thoracic legs uniramous in female and absent in male. The body wall of both sexes v/as composed of three layers, an outer thick cuticle, a hypodermis of pavement epithelium, and a mesenchymal layer of spheroid connective cells. The digestive system was complete in both sexes and consisted of a buccal cavity, esophagus, stomach, intestine, and anus. The stomach is lined with large coliimnar epithelium and gland cells. The reproductive system was the major internal system of both sexes. The gonads consist of two ovaries and two testes located in the anterior dorsal region of the thorax. Convoluted oviducts connect to the ovaries and to the base of the cement gland, A seminal receptacle was found ventral to the stomach. Two convoluted vasa deferentia lead away from the testes to the abdominal segments where they become swollen in size and produce the spermatophores. They emerge through openings at the lateral margins of the genital segment. Neither a nervous nor a vascular system was detected in either sex. |
| General note | Submitted to the faculty of the Department of Biology. |
| General note | Advisor: Francis P. Belcik |
| Dissertation note | M.A. East Carolina University 1967 |
| Bibliography note | Includes bibliographical references (leaves 39-40). |
| Genre/form | dissertations. |
| Genre/form | Academic theses. |
| Genre/form | Academic theses. |
| Genre/form | Thèses et écrits académiques. |
Availability
| Library | Location | Call Number | Status | Item Actions |
|---|---|---|---|---|
| Joyner | University Archives | ASK AT SPECIAL COLLECTIONS DESK | ✔ Available | Request Material |
| Electronic Resources | Access Content Online | ✔ Available |