ALBERT

Description: A supplementary survey is given of endo- and ectoparasites collected from wild mammals in the Netherlands.

Description: A list is given of identified parasites of zoo-animals and exotic animals, collected in the years 1959-1963.

Description: A second supplementary list is given of endo- and ectoparasites collected from wild mammals in the Netherlands.

Description: Cercariae have been collected and studied from two sampling areas, situated at a distance of about 5 km of one another, South-East of Amsterdam.\nThirteen species are mentioned in this paper, seven of which are reported from the Netherlands for the first time. Two species are described in detail: an echinostome cercaria tentatively identified as Cercaria deficipinnata Khan, 1960, and a new xiphidiocercaria belonging to the group \xe2\x80\x9carmatae\xe2\x80\x9d, named Cercaria otiosa n. sp.\nThe cercarial fauna in the two sampling areas is compared, and possible causes of differences are briefly discussed.

Description: INTRODUCTION\nDuring an investigation into the causes of mortality of the harbour seals (Phoca vitulina L.) in the Dutch Wadden Sea (Van den Broek & Wensvoort, 1959; Van den Broek, 1963), heterophyid trematodes have been regularly collected from the intestines. Crytocotyle lingua (Creplin, 1825) was rather common. Often together with this trematode a second, less conspicuous species was found, which appeared to belong to the Ascocotyle species complex. The taxonomy of this complex is very complicated and has recently been reviewed by American authors: Burton (1958) and Sogandares & Lumsden (1963).\nThe present author prefers to follow the traditional opinion as expressed by Hutton & Sogandares (1958) in dividing the complex into several genera.\nThe new species possesses the following fundamental characters: (1) spines surrounding oral sucker placed in a single row, (1) vitellaria confined to postovarial region, (3) uterus not extending in front of ventral sucker, (4) cuticle spinous on forebody only. These characters are used to distinguish the genus Phagicola Faust, 1920, from Ascocotyle Looss, 1899, sens. strict. (see Price, 1936; Burton, 1958). The species therefore is placed here in the genus Phagicola.\nPhagicola septentrionalis n. sp.\nDiagnosis (all measurements in \xce\xbc). \xe2\x80\x94 Body elongate, consisting of a rather narrow anterior part (50-70 % of total body length) which gradually widens into a rounded posterior part. Body length 600-1000, maximum width 160-250. Cuticle spinous on anterior part of body, up to level of gonocotyl.\nMouth surrounded by a single row of 16 to 20 spines of about 10-18 length.\nWidth of oral sucker: 45-60. Dorsal lip not triangular but broadly rounded.