Global Cestode DatabaseCestode Scientific Name
| Species ID | 9662 |
|---|---|
| Order | Lecanicephalidea |
| Family | Lecanicephalidae |
| Subfamily | |
| Genus | Rexapex |
| Species | nanus |
| Authority | Koch, Jensen & Caira, 2012 |
| Taxonomic Status | Valid |
| Valid Name | |
| Synonyms | |
| Genus Record | No |
| Type Species | Yes |
| Verified | No |
| Verified By | |
| Citation(s) |
Koch, K. R., K. Jensen, and J. N. Caira. 2012. Three new genera and six new species of lecanicephalideans (Cestoda) from eagle rays of the genus Aetomylaeus (Myliobatiformes: Myliobatidae) from Northern Australia and Borneo. Journal of Parasitology 98(1): 175-198. (5840) Download PDF |
| Redescription | |
| Scientific Name Notes |
Record Data
| Date (MM/DD/YYYY) | Action | User Name |
|---|---|---|
| 06/22/2012 | Created | K. Jensen , V. Lopez |
| 07/25/2014 | Modified | |
| 06/09/2016 | Modified | K. Jensen |
Type Host
| Host Class | |||||||
|---|---|---|---|---|---|---|---|
| Host Order | Myliobatiformes | ||||||
| Host Family | Myliobatidae | ||||||
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Type Host (Literal) |
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Type Host (Valid) |
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| Additional Host(s) | |||||||
| Site in Host | spiral intestine | ||||||
| Host Notes |
Type Locality
| Country | Australia |
|---|---|
| Body of Water | Gulf of Carpentaria |
| Island(s) | |
| City/Region | off Weipa, Queensland |
| Coordinates | |
| DD Latitude | -12.667 |
| DD Longitude | 141.867 |
| Additional Localities | |
| Locality Notes |
Specimens
| Type Material | Holotype (QM No. G233489), 5 paratypes (4 whole mounts and 1 proglottid cross-section; QM Nos. G233490-233494); 6 paratypes (USNPC No. 104890); 5 paratypes (4 whole mounts and 1 proglottid cross-section; LRP Nos. 7694-7700). Two whole worms prepared for SEM retained in the personal collection of K. Jensen at the University of Kansas. |
|---|---|
| Total Number of Type Specimens | 19 |
| Voucher Material | |
| Specimen Notes |
Data are given as in original description unless otherwise indicated.
FIGURES 56–59. Line drawings of Rexapex nanus n. gen., n. sp. (56) Whole worm. (57) Scolex with apical organ everted. (58) Scolex with apical organ retracted. (59) Mature terminal proglottid. Arrows indicate level of cross-sections in Figures 69 and 71. 
FIGURES 69–71. Rexapex nanus n. gen., n. sp. (69) Cross-section
through mature proglottid anterior to genital pore. (70) Cross-section
through maturing proglottid anterior to genital pore, showing 2 excretory ducts. (71) Cross-section through mature proglottid at level of ovary. Abbreviations: ED, excretory duct; ESV, external seminal vesicle; OV, ovary; T, testis; VT, vitelline follicle. 
FIGURES 60–68. Scanning electron micrographs of Rexapex nanus n. gen., n. sp. (60) Scolex and anterior strobila. (61) Scolex with apical organ everted. Small number indicates location of detail in Figure 65. (62) Scolex with apical organ retracted. Small numbers indicate location of detail in Figures 64 and 66. (63) Enlarged view of acetabulum. (64) Acetabular rim with trullate spinitriches and capilliform filitriches. (65) Anterior margin of
apical modification of scolex proper with gladiate spinitriches forming band around base of everted apical organ. (66) Scolex proper with acicular filitriches. (67) Anterior proglottids with capilliform filitriches and small scolopate spinitriches along posterior margin. (68) Posterior proglottids with capilliform filitriches and small scolopate spinitriches along posterior margin. 
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