Table 2.
Morphometric characters of the new proterodiplostomids. Ranges are followed by mean values in parentheses. Australiadiplostomum blairi sp. nov. is not in the table as its inclusion would be repetitive of the description.
| Species | Dungalabatrema kostadinovae sp. nov. | Dungalabatrema snyderi sp. nov. | Afroproterodiplostomum ingwenyae sp. nov. | Pseudoneodiplostomum angustus sp. nov. |
|---|---|---|---|---|
| Host | Cr. johnstoni | Cr. johnstoni | Cr. niloticus | Cr. niloticus |
| Locality | Australia | Australia | South Africa | South Africa |
| Number of specimens | n = 10 | n = 15 | n = 3 | n = 7 |
| Body length | 1,956–2,191 (2,123) | 1,671–3,512 (2,656) | 3,268* | 2,200–2,587 (2,381) |
| Prosoma length | 1,099–1,230 (1,161) | 1,092–1,968 (1,501) | 1,698* | 1,492–1,784 (1,604) |
| Prosoma width | 284–321 (301) | 170–563 (377) | 706–787 (747) | 251–499 (381) |
| Opisthosoma length | 804–1,032 (961) | 578–1,544 (1,152) | 1,252–1,570 (1,406) | 517–803 (713) |
| Opisthosoma width | 190–274 (224) | 130–398 (269) | 558–595 (577) | 244–364 (322) |
| Prosoma:opisthosoma length ratio | 1.1–1.4 (1.2) | 1.0–1.9 (1.4) | 1.1* | 1.9–2.2 (2.1) |
| Forebody (% of body length) | 27–32% (30%) | 23–31% (27%) | 27%* | 32–38% (35%) |
| Oral sucker length | 42–48 (46) | 37–64 (48) | 75* | 38–49 (45) |
| Oral sucker width | 38–49 (45) | 36–56 (45) | 72* | 41–46 (44) |
| Ventral sucker length | 58–68 (64) | 61–120 (87) | 103–126 (114) | 76–98 (85) |
| Ventral sucker width | 63–74 (70) | 61–125 (88) | 124–137 (131) | 74–105 (91) |
| Oral sucker:ventral sucker width ratio | 0.5–0.8 (0.6) | 0.4–0.7 (0.5) | 0.5* | 0.4–0.5 (0.5) |
| Holdfast organ length | 246–332 (272) | 195–534 (344) | 521–688 (592) | 229–490 (378) |
| Holdfast organ width | 123–173 (156) | 112–290 (192) | 296–353 (325) | 110–248 (185) |
| Distance between ventral sucker and holdfast organ (% of prosoma length) | 10–15% (13%) | 14–27% (20%) | 5%* | 7–15% (11%) |
| Pharynx length | 34–43 (39) | 31–61 (45) | 64* | 36–56 (47) |
| Pharynx width | 25–32 (28) | 26–41 (32) | 57* | 26–30 (28) |
| Esophagus length | 76–151 (111) | 95–175 (113) | 167* | 102–126 (114) |
| Anterior testis length | 137–187 (168) | 97–243 (185) | 252–342 (295) | 161–214 (193) |
| Anterior testis width | 136–188 (153) | 195–278 (196) | 419–441 (430) | 195–277 (237) |
| Posterior testis length | 190–266 (221) | 108–310 (221) | 275–357 (329) | 166–264 (208) |
| Posterior testis width | 135–183 (158) | 118–288 (202) | 427–495 (461) | 178–298 (244) |
| Ovary length | 60–89 (81) | 55–164 (106) | 137–174 (162) | 67–104 (88) |
| Ovary width | 61–90 (81) | 54–139 (102) | 173–218 (196) | 87–131 (104) |
| Egg length | 95–110 (101) | 93–101 (98) | 101–128 (115) | 111–122 (116) |
| Egg width | 65–68 (67) | 65–74 (68) | 59–69 (65) | 62–72 (66) |
| Anterior vitellarium free zone (% of prosoma length) | 55–65% (60%) | 50–65% (57%) | 50%* | 48–61% (56%) |
| Posterior vitellarium free zone (% of opisthosoma length) | 39–68% (47%) | 38–67% (49%) | 40–50% (44%) | 55–83% (67%) |
*
Only a single complete specimen was available for measurement.