Hidden in the fog: morphological and molecular characterisation of Derogenes varicus sensu stricto (Trematoda, Derogenidae) from Sweden and Norway, and redescription of two poorly known Derogenes species

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Table 4

Measurements of Derogenes ruber Lühe, 1900 and Derogenes minor Looss, 1901. M., Mediterranean. L., length. W., width. R., ratio.

Species	D. ruber	D. ruber	D. ruber	D. minor	Derogenes cf. minor
Host	Trigla lyra	Ch. lastoviza as T. lineata	Ch. lastoviza as T. lineata	Labrus merula		Lophius piscatorius
Habitat	Gall-bladder	Gall-bladder	Intestine	Intestine	Intestine	Intestine	Intestine
Locality	Off Split, Croatia, Western M	Off Split, Croatia, Western M	Off Trieste, Italy, Central M	Trieste, Italy, Central M	Trieste, Italy, Central M	Trieste, Italy, Central M
Number of specimens	2	2	2	12	1	1	1
Source	[74]	[47]	Present study	[45]	Paratype, Present study	Present study	Present study
Body L	4200–4500	5000–6000	7869	Max 2000	2022	–	2412
Body W	1300–1800	2000	1847	460	477	787	675
Forebody			3765 × 1714		983 × 500	813 × 720	1200 × 631
Hindbody			2750 × 959		706 × 366	– × 655	836 × 500
Pre-oral lobe			88		22	53
Oral sucker	505 × 505	600^*	655 × 708	220^*	222 × 207	318 × 281	226 × 250
Ventral sucker	950–1290	750^*	1257 × 1230	330^*	349 × 321	432 × 398	358 × 391
Pharynx	168	200	254 × 275	90^*	91 × 96
Seminal vesicle			291 × 134		119 × 32		79 × 106
Pars prostatica
Right testis	252 × 168		271 × 353		136 × 101		90 × 105
Left testis	196 × 140		256 × 280		115 × 88		79 × 106
Sinus - organ					97 × 92
Ovary	252 × 252				129 × 107		148 × 177
Right vitelline mass	440 × 420	450	546 × 658		204 × 109	252 × 156	256 × 176
Left vitelline mass	470 × 440	450	550 × 446		180 × 103	262 × 255	298 × 190

Eggs	623 × 23	56–36	62 × 39	60 × 38	58 × 39	59 × 36	60 × 40

Diameter.

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