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. 2021 Jul 27;53:e2021-66. doi: 10.21307/jofnem-2021-066

Table 2.

Compendium of the species belonging to the genus Iotonchus (Cobb, 1917).

Species n L a b c c' V B.C.L. B.C.W. %DT Spinneret Female gonad Spicule length Number Suppls Country Reference
abrahmami 9♀♀ 2.7-3 40-51 4.6-5.0 5.8-12.3 5.9-12.8 64-72 42-47 27-31 33-36 Terminal Pseudo-prodelphic Malaysia Loof (2006)
2♂♂ 2.7-2.8 54 4.7-4.8 6.8 8.3-8.5 42-43 25-26 90-91 11
acuticaudus 11♀♀ 1.9-2.1 29-34 3.8-4.7 9.1-11.8 6.1a 71-75 40-50 28-32 23a Subdorsal Monodelphic Nigeria Mulvey and Jensen (1967)
11♂♂ 2.0-2.4 27-34 4.0-4.4 9.5-11.8 4.3a 40-45 27-31 78-88 6-8
Acutus 10♀♀ 1.8-2.2 32-39 5.3-6 12-15.5 4.3a 61-66 37-38 24-26 28a No Didelphic South Africa Heyns and Lagerwey (1965)
10♂♂ 1.4-1.9 28-40 4.4-5.5 13.2-15.6 2.7a 26-37 17-23 67-83 9-12
4♀♀ 1.7-2.4 31-41 13.6-18 3.9a 63-66 39-43 20-27 No Didelphic USA Mulvey (1963a)
aequabilis ?♀♀ 2.2-2.5 36-43 5.4-5.6 34-41 1.3-1.8 70-72 44-48 28-33 No Didelphic Ukraine Susulovsky (1998)
aequatorialis 5♀♀ 2.2-2.4 20-30 4.4-4.7 4.3-4.8 8.3-10 51-54.4 57-65 32-38.5 23a Terminal Didelphic Ecuado Vinciguerra and Orselli (2006)
anisostomus 1♀ 1.72 30 3.7 12.9 5a 68 40 17 23a Terminal Monodelphic Thailand Buangsuwon and Jensen (1966)
arcuatus 8♀♀ 1.7-1.8 35-41 4.4-4.7 4.9-6 9.2-10.5 55-57 38-41 24-28 24-34 No Didelphic Japan Khan et al. (2000)
apapillatus 8♀♀ 2.7-3.5 35-39 4.4-4.7 10-13 4.3-5.8 62-74 67-80 40-44 19-27 Terminal Didelphic India Dhanam and Jairajpuri (1998)
3♂♂ 2.9 41 4.6-4.7 11-15 2.9-4.3 64-67 34-35 125-138 17-19
baqrii 9♀♀ 1.5-1.7 28-37 4.0-4.6 5-7 12.2a 62-70 32-37 28-32 29-34 Subventral Monodelphic India Jairajpuri (1969)
9♂♂ 1.5-1.7 31-35 4.3-4.8 5-7 6.8a 28-32 24-26 25-28 80-93 9-10
basidontus 6♀♀ 1.7-2.4 25-32 3.7-4.3 6.5-8.6 6.6a 55-60 48a 30a 25 Terminal Didelphic New zealand Clark (1960)
1♂ 2 30 3.9 8.6 4.8a 83a 14
brachylaimus 1♀ 3.2 33.3 4.8 17 3.7a 65 64a 53a Terminal Didelphic USA Mulvey (1963a), (after Cobb, 1917)
1♂ 3.5 40 5.3 17 95 16
carpathicus 13♀♀ 2.5-3.5 31-44 4.2-5.1 4.3-6.6 12.1a 56.5-60 46-62 36-52 23-35 No Didelphic Romania Popovici (1990)
16♂♂ 2.1-3.7 33-47 4.3-5.1 4.9-6.7 47-57 33-50 72-100 11-13
chantaburensis 4♀♀ 0.8-1 24-32 3.5-4.5 3.8-4.9 59-64 22-25 9-14 Terminal Monodelphic Thailand Buangsuwon and Jensen (1966)
6♀♀ 0.9-1 24-26 3.8-3.9 5.8-6 6.7-7.4 63-65 26-30 14-17 Subventral Monodelphic India Mohadas and Prabhoo (1979)
clarki 6♀♀ 1.7-2 28-34 3.9-5.2 4.6-5.9 8.8a 52-58 40-43 23-29 20a No Didelphic Nigeria Mulvey and Jensen (1967)
consimilis ?♀♀ 2.8-3.5 34-41 4.5-4.9 6.6-7.6 7.3a 68-69 60-63 37-40 Terminal Monodelphic Brazil, Hawaii Mulvey (1963a), (after Cobb, 1917)
cucumis 5♀♀ 2.9-3.2 39-44 4.2-4.3 10.7-12.2 4.7-5.2 64-66 57-60 34-39 23 Terminal Didelphic Korea Khan et al. (2002)
cuticaudatus 12♀♀ 2.8-3 30-37 4.6-5.8 7-10 5.5-7.8 62-64.5 57-65 33-37 22-25 Terminal Didelphic India Jana et al. (2007)
7♂♂ 2.3-3.1 30-39 4.4-5.4 9.6-14.5 3.1-3.6 50-57 26-30 123-133 11-15
damsanensis 3♀♀ 1.6-1.7 20-22 2.9-3 17-1.7 1.7-2.2 71-75 58-61 35-37 29-32 No Didelphic Korea Choi and Khan (2000)
devius 1♀ 2.4 37.5 4.2 6.5 9.5 69 54 30 26 No Monodelphic Côte d’Ivoire Siddiqi (2001)
geminus 8♀♀ 1.7-2.1 25-30 3.9-4.5 12.4-14 3.4a 65-68 38-43 22-24 29a Terminal Didelphic South Africa Heyns and Lagerwey (1965)
7♂♂ 1.7-1.9 28-33 4.0-4.8 14.6-17.5 2.5a 37-39 18-20 77-88 11-14
globibucca ?♀♀ 2.4 31 5 7.1 8.2 59 54 37 No Didelphic India Dhanam and Jairajpuri (2002)
goshiensis 4♀♀ 1.5-1.6 28-30 3.7-4.1 24-26 1.7-1.9 63-65 40-42 26-27 24-25 No Didelphic Japan Khan et al. (2008)
guineae 1♀ 2 33 4 7.1 7.1 70 58 34 20a Terminal Monodelphic Guinae Siddiqi (2001)
2♂♂ 1.9-2.0 35-43 3.9-4.7 5.9-6.9 6.9-8.3 47 26-27 74-89 4-6
gymnolaimus 1♀ 2.9 40 4.2 7.1 9a 67 57 40 Terminal Monodelphic Fiji, Brazil, USA Mulvey (1963a), (after Cobb, 1917)
hinokumaensis 4♀♀ 2-2.2 33-44 4.7-5.4 9.4-10.8 5.3-6.1 60-63 37-40 24-26 26-27 No Didelphic Japan Khan et al. (2008)
3♂♂ 2.1-2.3 41-44 4.4-5.4 8.7-9.3 5.9-6.3 38-40 24-25 68-75 9-11
indicus 28♀♀ 1.5-2 21-32 4.0-4.8 5-8 10a 57-65 40-47 28-32 23-25 Subventral Didelphic India Jairajpuri (1969)
kilumicus 4♀♀ 2.6-2.7 50-57 4.9-5.2 4.0-4.5 17-18 53-55 43-48 23-25 23-27 Subventral Didelphic Cameroon Siddiqi (2001)
3♂♂ 2.4-2.5 49-57 4.9-5.1 4.1-4.6 13-14.6 41-43 18-19 63-73 10-11
kirbyi 5♀♀ 3-3.3 40-46 4.2-4.6 6.8-7.8 7.8-9.1 67-72 58-64 32-33 26a Terminal Pseudo–prodelphic Fiji Siddiqi (1984)
4♀♀ 2.8-3.3 37-40 3.6-4.2 13.5-17.8 3.1-4.2 72-74 60-62 31-33
kirghistanicus ?♀♀ 1.4-1.8 20-23 3.2-3.7 23-28 1.5-2 72-75 42 30 No Didelphic Kirghistan Sultanalieva (1983)
?♂ 1.6 19-22 3.3-3.8 20-25 22
koupensis 4♀♀ 2.1-2.5 30-36 4.1-4.2 4.1-5.5 8-11 54-58 57-60 29-30 19-20 Subventral Didelphic Cameroon Siddiqi (2001)
1♂ 1.8 29 4.5 5.8 7.2 49 24 90 12
lacuplanarum 2♀♀ 2 39-45 4.6 6.1-6.2 10.2 63-64 36-37 26 24-25 Subventral Monodelphic New Caledonia Yeates (1992)
3♂ 1.8-2.1 38-45 4.2-4.9 6.1-7.2 7.4-8.9 32-35 23-29 27-29 47-57 9-12
lamottei 4♀♀ 1.6 32-35 4.1-4.4 7.2-7.9 6.4a 65-66 33-41 25-27 22a No Monodelphic Côte Malcevschi (1981)
1♂ 1.6 31 4 8.3 4.1a 35 22 50 9 d’Ivoire
litoralis 2♀♀ 2.1-2.3 24-26 5 10-11 4.5a 61-62 61a 42a 25 Terminal Didelphic South Coetzee (1967b)
2♂♂ 2.6-2.8 36-37 4-5 16 2.7a 104-112 15-17 Africa
1♀ 2.7 34 4.1 15.1 3.6 68 54 39 Terminal Didelphic South Africa De Bruin and Heyns (1992)
2♂♂ 2.6-2.8 35-37 4.4-4.7 18.4-21 2.2-2.6 49 32-35 107-111 13-14
longisaccus 2♀♀ 1.8-2.4 32-38 4.1 9.1-10.9 5.2-5.4 71 50-60 25-31 28a Terminal Monodelphic Côte Siddiqi (2001)
1♂ 2.35 47 3.9 7.3 7.8 54 25 88 4 d’Ivoire
loteniae 3♀♀ 1.9-2 34-42 4.3-5.1 7.3-8.6 6.8-9.5 61-68 30-38 22-25 29a No Didelphic South Africa De Bruin and Heyns (1992)
lotilabiatus 5♀♀ 3.8-5.2 50-59 4.9-5.4 4.5-6.3 12-20 54-59 70-88 41-54 22-23 Terminal Didelphic Vietnam Currently paper
6♂♂ 3-4.2 44-52 4.7-5.4 5.3-5.9 8.2-13 62-67 36-41 21-25 130-141 13-14
magyar 1♀ 4.2 38 4.9 86 0.7 69 51 26 40 No Didelphic Hungary Andrássy (1973)
mboticus 2♀♀ 2.2-2.3 42-44 5.2-5.3 4.2-4.3 14-14.7 52-53 40 23 23a Subdorsal Didelphic Cameroon Siddiqi (2001)
3♂♂ 2.0-2.1 46-47 5.3-5.6 4.0-4.4 12-13.5 37-39 19-20 56-62 10
miamaensis 9♀♀ 3.2-3.5 44-50 4.6-5.0 7.6-8.4 7.5-8.3 60-61 64-72 42-45 24-27 Terminal Didelphic Japan Khan and Araki (2002)
5♂♂ 2.8-3.1 45-48 4.5-4.7 11.2-14 3.5-4.7 57-62 34-40 127-138 12-13
microdontus 4♀♀ 1.2-1.3 29-31 3.7-3.9 5.7-6 61-64 34-36 19-20 Terminal Monodelphic Singapore Thong (1970)
muneris 3♀♀ 1.5-1.6 33-36 4.1-4.4 4.1-4.7 11-13.7 58-62 36-37 19-20 17-19 Subventral Monodelphic Cameroon Siddiqi (2001)
nayari 13♀♀ 2.3-2.7 31-34 4.2-4.6 12-16 4.0-4.9 62-67 55-64 34-38 27-28 Terminal Didelphic India Mohadas and Prabhoo (1979)
4♂♂ 2.2-2.5 31-33 4.1-4.6 13-16.5 2.5-2.9 52-54 28-30 117-126 15-16
8♀♀ 2.3-2.7 27-34 4.0-4.6 10-12 65-70 51-54 32-36 Terminal Didelphic India Khan and Jairajpuri (1980)
10♂♂ 2.3-2.6 30-37 4.1-4.7 10-13 112-131 12-16
ndu 8 ♀♀ 1.8-2.7 39-47 4.3-4.9 4.3-6.9 8-15 50-57 46-54 21-27 24-26 Subventral Didelphic Cameroon Siddiqi (2001)
3♂♂ 1.8-2.2 42-45 4.3-4.8 4.4-6.9 8.9-11.7 45-50 21-22 66-75 10-12
nepotum 7♀♀ 1-1.2 22-25 3.1-3.8 13-16 2.2-2.8 66-70 36-40 22-23 17-20 Terminal Monodelphic Papua New Guinea Andrássy (2008)
nigeriensis 11♀♀ 1.6-1.9 25-35 3.9-4.6 10-13 5.4a 68-72 36-40 21-29 23a No Monodelphic Nigeria Mulvey and Jensen (1967)
11♂♂ 1.4-1.7 28-36 3.9-4.5 12-16 3.3a 32-35 20-23 63-70 6-8
ogiensis 4♀♀ 2-2.3 33-36 4.1-4.4 18-20 2.7-3.3 62-63 38-41 24-26 24 No Didelphic Japan Khan et al. (2008)
2♂♂ 2.1-2.3 32-34 4.4-4.6 14-15 2.5-2.7 45-47 25-28 90-95 12-14
obtusus 1♀ 2.8 33 4.2 61 1 68 61 45 21 No Didelphic Korea Choi et al. (1999)
onchus 2♀♀ 2.4-2.5 35-36 4.6-4.8 7-8 7 61 55 33-35 26-28 No Didelphic Korea Jairajpuri et al. (2000)
1♂ 2.1 34 4.6 8 5 50 30 23 82 11
parabasidontus 7♀♀ 2.2-2.6 26-37 4.3-4.9 7.2-8.7 6.9a 56-60 48-55 29-32 23a Terminal Didelphic Nigeria Mulvey and Jensen (1967)
5♂♂ 2.0-2.4 29-38 4.3-4.7 9.1-11.2 4.2a 42-50 25-28 26a 90 13-15
1♀ 1.7 24.4 4.3 6.6 6.5 58 49 26 Cameroon Siddiqi (2001)
paracutus 2♀♀ 1.9-2.2 23-26 5-5.1 9.4-10.4 3.5-4.6 62-63 57-68 35-40 23a No Didelphic Italia Vinciguerra and Orselli (2000)
2♂♂ 1.6 23-24 4.6 10-11.3 2.8-3.0 52.5 30-32.5 57.5-66 10-11
parageminus 31♀♀ 1.8-2.4 39-53 5.1-6.2 17-24.9 2.5-4.3 63-69 29-40 20-27 25-37 Subdorsal Didelphic Spain Jiménez-Guirado (1994)
20♂♂ 1.7-2.2 36-53 5.1-6.1 24-32 1.6-2.2 27-34 18.5-21.5 53.5-67 9-13
paratrichurus 5♀♀ 1.4-1.5 27-35 4.2-4.6 3.6-4.1 13.5-15 55-58 30-32 15.5-17 23-25 Subventral Monodelphic Cameroon Siddiqi (2001)
2♀♀ 1.3-1.4 23-25 4.3-4.5 3.1-3.9 10.3-13 30 17-19
pauli 5♀♀ 1.3-1.6 35-42 4.8-5.1 8.4-9.3 6.2a 59-63 29-30 18-19 30a No Didelphic South Africa Heyns and Lagerwey (1965)
6♂♂ 1.3-1.4 38-45 4.6-5.1 10-11.2 3.7a 26-29 14-15 52-53 8-9
pseudodigonicus 6♀♀ 1.4-1.6 31-34 4.2-4.7 4.1-4.7 60-63 36-39 25-27 31-36 Subventral Pseudo-prodelphic India Ahmad and Jairajpuri (1983)
4♂♂ 1.4-1.7 33-41 4.4-4.7 4.6-5.1 60-64 6-8
pusillus 14♀♀ 0.7-1 24-30 3.6-4.3 7.0-8.1 4.7-6.9 63-67 22-24 10-13 20-29 No Monodelphic Malaysia Loof (2006)
recessus 1♀ 2.1 43 4.6 5.8 11 63 38 26 26 Subventral Monodelphic New Caledonia Yeates (1992)
rayongensis 1♀ 2 37 4.9 9.5 7.7a 57 46 22 33a Subdorsal Didelphic Thailand Buangsuwon and Jensen (1966)
rinae 5♀♀ 1.5-1.8 30-38 5 14-15 4.2a 68-72 34a 22a 29 Terminal Didelphic South Coetzee (1967b)
12♂♂ 1.7-1.9 31-40 5 15-19 3.2a 60-70 11-12 Africa
10♀♀ 1.4-1.9 27-35 3.9-4.5 10-13.3 3.6-5.1 61-70 29-39 18-24 Terminal Didelphic South Africa De Bruin and Heyns (1992)
8♂♂ 1.3-1.7 28-37 4.1-5.1 14-17.7 2.5-2.8 66-74 6-11
risoceiae 1♀ 3.3 33 4.6 8.9 6.2a 64 58 47 29a Terminal Didelphic South Africa Heyns and Lagerwey (1965)
4♀♀ 2.7-3.4 34-37 4.5-4.7 8-10 6.3a 60-64 53-64 32-40 Terminal Didelphic India Khan and Jairajpuri (1980)
?♂♂ 3.1-3.7 36-39 4.5-5.1 11 14-18 India Ahmad and Jairajpuri (2010)
rotundicaudatus 29♀♀ 2.3-2.8 45-63 5.9-7.7 55-108 0.8-1.4 62-69 32-45 23-25 25-32 No Didelphic Spain Peña Santiago and Jiménez–Guirado (1991)
sacculatus 3♀♀ 1.7-2.1 28-35 4.4-4.5 7.6-8.0 6.3-6.6 70-72 53-55 30-31 13-15a Subdorsal Monodelphic Guinea Siddiqi (2001)
3♂♂ 1.5-1.8 35-39 3.9-4.5 6.8-8.2 5.3-5.5 40-49 22-26 76-79 8-9
sagaensis 4♀♀ 2.5-2.9 40-42 4.1-4.6 9.3-11 5.3-6 60-65 58-60 38-40 23-27 Terminal Didelphic Japan Khan et al. (2000)
5♂♂ 2.2-2.6 39-46.5 4.1-4.6 11.5-14 3.2-4.5 46-55 30-32 102-109 10-12
silvallus 4♀♀ 1.4-1.9 27-36 4.0-4.3 4.8-5.4 11.3a 62-65 41-42 24-25 27-29 Subventral Monodelphic India Ahmad and Jairajpuri (1983)
singaporensis 16♀♀ 1-1.23 36-41 3.7-4.2 5.1-6.7 6.3-8.3 59-65 31-33 18-19 29-33 Terminal Monodelphic Sigapore Ahmad et al. (2005)
southi 8♀♀ 1.8-2.6 31-38 3.7-4.5 6-7 8-11 66-80 46-54 25-31 26-31 Subventral Monodelphic India Dhanam and Jairajpuri (1998)
1♂ 2.2 35 4.3 9 5 52 24 24 76 12
stockdilli 9♀♀ 3.3-4.3 41-49 5.2-5.9 7.1-8.8 7.4-10.2 58-73 50-57 32-41 33a No Didelphic New Zealand Yeates (1988)
9♂♂ 3.2-3.7 45-54 5.1-6 7.9-9.2 6.2-7.5 48-55 28-41 68-70 11-12
tarjani 21♀♀ 1.7-2.2 27-41 4.4-5.9 3.3-4.0 16a 47-51 40-43 23-27 23a No Didelphic Nigeria Mulvey and Jensen (1967)
2♂♂ 1.6-1.7 34-39 4.3-4.4 4 38 23 60-65 ?
3♀♀ 2.1-2.4 34-37 4.1-5.5 4.1-4.5 15-17 51-54 44-47 22-26 19a No Didelphic Cameroon Siddiqi (2001)
tenuidentatus 10♀ 1.9-2.5 28-35 4.0-4.5 4.9-5.6 10a 53-57 45-52 27-31 23a Subventral Didelphic Nigeria Mulvey and Jensen (1967)
togoensis 4♀♀ 2.2-2.8 41-48 4.8-5.2 4.4-5.9 12.6-17 51.5-59 49-50 23-24 26a Terminal Didelphic Togo Siddiqi (2001)
transkeiensis 2♀♀ 1.5-1.6 28-35 4.5 7.3-7.9 6.7a 62 36-38 21-23 31a No Didelphic South Africa Heyns and Lagerwey (1965)
6♀♀ 1.6-1.7 38-48 3.7-5.7 6.0-7.2 8.7a 56-66 32-35 21-25 36.4a No Didelphic Thailand Buangsuwon and Jensen (1966)
trichurus ?♀ 1.2 34.5 4.8 3 15-20 52 28 17 Australia, Fiji, Brazil, Nigeria, Mauritius Mulvey (1963a), (after Cobb, 1917)
?♀♀ 1.3-2.1 28-46 3.5-5.4 3-5 15-20 53-62 20-35 20-25 Terminal Monodelphic Mulvey (1963a)
?♂ 1.7 28 4.4 3.6 78 8-10
7♀♀ 1.3-1.6 37-41 3.7-4.7 3.4-4 13-18 54-60 26-28 16-18 25-27 Terminal Monodelphic India Jairajpuri (1969)
1♀ 1.7 37 4.6 4 16 61 30 16 26 Subventral Monodelphic Costa Rica Zullini et al. (2002)
uisongensis 7♀♀ 1.5-1.6 23-26 2.8-3.2 17-19.4 2.0-2.4 67-73 52-63 31-36.5 27-36 No Didelphic Korea Choi and Khan (2000)
5♂♂ 1.5-1.7 24-27 3.2-3.3 19.6-23 1.4-1.6 52-58 30-34 75-92 20-22
zullinii 20♀♀ 1.3-2 27-36 3.8-4.7 9.6-13.3 4a 69-76 33-41 22-27 22a Subdorsal Monodelphic Côte Malcevschi (1981)
8♂♂ 1.3-2 29-37 3.9-4.6 10.3-13 3a 32-37 20-24 68-73 7-10 d’Ivoire

Notes: Measurements in µm excepted L in mm. L = body length, a = body length/maximum body diameter, b = body length/pharynx length, c = body length/tail length, c′ = tail length/anal body diameter, V = distance from vulva to the anterior end of bodyx100/body length, B.C.L .= buccal cavity length, B.C.W. = buccal cavity width, %DT = dorsal tooth apex length from the base of buccal cavityx100/buccal cavity length, Suppls = ventromedian supllements. aCalculated from original illustrations.