Dr. Murai Éva szerk.: Parasitologia Hungarica 13. (Budapest, 1980)

stages. As shown by THERON (1975), species of the genus Plagiorchis can be readily differentiated by cercarian chaetotaxy. All species reported from bats elsewhere have been once synonymized with Plagior chis vespertilionis, The systematic status of the Plagiorchis vespertilionis complex has been discussed by GROSCHAFT and TENORA (1974). These authors demonstrated that there are at least two valid species: P. vespertilionis and P. koreanus Ogata, 1938. They suppose that P. koreanus has a cosmopolitan distribution and is more frequent that P. vespertilionis

, the zoogeographical distribution of this last one being impossible to determine exactly. Our material corresponds perfectly to the dimensions of P. vespertilionis as described by GROSCHAFT and TENORA (19 74). The ratio of suckers, the most important differential criterion between both species (ratio of sucker surfaces in P. vespertilionis

: 0. 741.27; in P. koreanus: 1. 57-2. 99) gives no doubt to the adjudication of our Spanish material to P. vespertilionis. P. vespertilionis has been reported from Spanish bats by LOPEZ-NEYRA (1947), POZO-LORA (19 60), SANCHE

Z-ACEDO, OTERO and ALBALA-PEREZ (1974), VAU CHER (1975), from the French Pyrenees by COMBES and CLERC (1970). Unfortunately, none of these authors has described the material, so that it is now impossible to know if it was P. vestertilionis or P. koreanus

. The revision of these materials would be interesting in this sense. Farn. MOLLNEIDAE (Skrjabin et Schulz, 1937) Durette-Desset et Chabaud, 1977 Molinostrongylus panousei Dollfus, 1954 Material: 19 SS and 40 oo. Description (Fig. 2) Synlophe: 7 dorsal and 7 ventral longitudinal cuticular crests (crêtes) and 2 lateral wings about 0. 020 mm wide in both sexes. Male: body length 3. 00-3. 55 mm, maximum width 0. 079-0. 098 mm. Vesicle 0. 0410.047 mm long. Esophagus 0.300-0.360 mm long. Nerve ring 0. 100-0. 140 mm, deirids 0. 1000. 160 mm and excretory pore 0. 130-0. 160 mm from the anterior end. Bursa copulatrix consists of 2 lateral and 1 small dorsal lobes, toothed on the inner side. Dorsal ray relatively short, branching into four. Spicules 0. 220-0. 250 mm long, forked at tip. Gubernaculum 0. 064-0. 078 mm long. Female: body length 4. 50-5. 60 mm, maximum width 0. 12-0. 16 mm. Vesicle 0. 0450.056 mm long. Esophagus 0. 340-0. 380 mm long. Nerve ring 0. 100-0.160 mm, deirids 0. 150-0. 190 mm and excretory pore 0. 160-0. 180 mm from the anterior end. Distance of vulva from the anterior end ranging from 3. 370 to 3.700 mm. Tail 0. 040-0. 050 mm long, with three branches on the end and bearing a terminal spike. Eggs 0.088-0.095 mm long and 0, 050 mm wide. Notes As far as known, this species infests only Miniopterus schreibersi. Its morphologically closest congener is _Mj-jlinos1j~on^ 1927). For differentiation between these two species see DURETTE-DESSET and CHABAUD (1975). Concerning the distribution of M. panousei, the most important literature data are the following: Morocco (DOLLFUS, 1954), Afghanistan (BARUS and TENORA, 1967), Hungary (MÉSZÁROS, 1971) and France (DURETTE-DESSET and CHABAUD, 1975). The material identified as M. ornatus by COMBES and CLERC (1970) probably also belongs to the species M. panousei

. The present record is the first one for this species in Spain. Fam. ONCHOCERCIDAE (Leiper, 1911) Litomosa beaucournui Bain, 1966 Material: 8 <53 and 16 ÇQ.. Description (Fig, 3) Long, thin worms tapering towards the posterior part of body. Buccal capsule conetil