Open Access
Table II.
Morphological characteristics of the male of Monanema joopi n. sp. from Acomys (Acomys) spinosissimus Peters, 1852 in South Africa and its congeners.
| Monanema species |
||||||
|---|---|---|---|---|---|---|
| joopi n. sp. | marmotae | globulosa | nilotica | martinib | australeb | |
| Authority and reference | 341 YU/1; this paper | (Webster, 1967) | (Muller & Nelson,1975) | El Bihari, Hussein & Muller, 1977 | Bain, Bartlett & Petit, 1986 | Spratt, 2008 |
| Host Family | Muridae | Sciuridae | Muridae | Muridae | Muridae | Muridae |
| Type host species | Acomys (Acomys) spinosissimus | Marmota (Marmota) monax canadensis | Lemniscomys striatus | Arvicanthus niloticus | Arvicanthus niloticus | Melomys cervinipes |
| Geographic origin | South Africa | Canada | Kenya | Sudan | Mali | Australia |
| Site of infection | heart | connective tissue of gall bladder and bile ducts | pulmonary arteries | heart, pulmonary arteries | lymphatic vessels of caecum-colon wall | lung parenchyma and terminal alveoli; hepatic blood vessels and lymphatics |
| No. of specimens examined | 1 | 8 | 12 | 6–9 | 2 | 3 |
| Body length (mm) | – | 31–38 | 10.4–13.0 | 29–35 | 13.1; 13.2 | 24.3; 20.1; – |
| Maximum width | 75 | 75–84 | 33–39 | 112–144 | 30; 20 | 49; 40; 44 |
| Cephalic extremity | not bulbous | bulbous | bulbous | not bulbous | bulbous | bulbous |
| Oesophagus length | 332 | 432–584 | 420–450 | 352–464 | 455; 480 | 600; –; – |
| Apex to nerve ring | 92 | approx. 60 | 120–150 | 123–130 | 120; 115 | 40; –; – |
| Left spicule (handle) | 190 (105) | 411–599 (156–181) | 112–144 (–) | 235–284 | 135 (65); 130 (65) | 237 (97); 231 (94); 238 (97) |
| Right spicule | 68 | 70–86 | 44–50 | 70–80 | 52; 45 | 49; 47; 52 |
| Hook of right spicule | present | present | absent | present | double hook | present, keel-like |
| Spicular ratio (l/r) | 2.7 | 5.5–6.7c | 2.7 | 3.6 | 2.6; 2.9 | 4.8; 4.9; 4.6 |
| Tail length | 160 | 130–185 | 110–118 | 160a | 130; 115 | 87; 84; 93 |
| Shape of tip of tail | dilated | not dilated | not dilated | not dilated | not dilated | not dilated |
| Caudal alae | present | absent | absent | absent | present | present and particular |
| Position of area rugosa relative to cloaca | anterior | anterior and posterior | – | anterior | anterior and posterior | anterior |
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