New and described species of nematodes from shorebirds (Charadriiformes) collected in spring in Iceland

Abstract

The following were found in shorebirds collected during late April and early May shortly after their arrival in Iceland. Voguracuaria lankesteri n. g., n. sp. was found in the oesophagus of eight of 20 whimbrels Numenius p. phaeopus. The new genus resembles Syncuaria, but males have an area rugosa and small caudal alae, females are didelphic and the vulva is distant from the anus. Also, Syncuaria spp. occupy the gizzard rather than the oesophagus. Skrjabinocerca europaea n. sp. was found in the oesophagus of six of 22 ringed plovers Charadrius h. hiaticula (type-host) and in one dunlin Calidris alpina schinzii. The new species is readily distinguished by the presence of a cuticular flange at the distal end of the left spicule, its slightly recurrent cordons and its longer right spicule. “Skrjabinocerca prima” previously reported from American avocets Recurvirostra americana in North America is recognised as a distinct species and named S. americana n. sp. Ancyracanthopsis shikhobalovi found in the gizzard of whimbrels and Viktorocara charadrii found in the gizzard of ringed plovers are redescribed. Other nematodes found in the birds were Chevreuxia revoluta, Cosmocephalus capellae, C. obvelatus, Echinuria sp., Streptocara sp., Ancyracanthopsis parvialatus, Schistorophus cornutus, S. cirripedesmi, Sciadiocara bihamata, Viktorocara limosae, Microtetrameres sp., Tetrameres sp., Stellocaronema skrjabini and Porrocaecum semiteres.