Key to the species of Morishitium Wienberg, 1928 (Cyclocoelidae), with the description of a new species from the red-billed blue magpie, Urocissa erythrorhyncha (Boddaert) (Corvidae) from Guizhou Province, People’s Republic of China

Abstract

The 11 species currently assigned to Morishitium and the new species described herein are divided into the rauschi, straightum and vagum body types, and keys to species are provided. Morishitium urocissae n. sp. is described from the red-billed blue magpie, Urocissa erythrorhyncha (Corvidae), from the Dashahe Nature Reserve, Guizhou Province, southwestern Peoples Republic of China. Morishitium urocissae n. sp. is similar to M. bivesiculatum by having a similar ratio of the width of the pharynx to the width of the oral sucker (1:1.0-1:1.2 compared to 1:1.0) and a similar sized cirrus sac (470-565 long; 3-5% of body length compared to 400; 4%). Both species also have the anterior extent of the vitelline fields reaching the level of the pharynx, which distinguishes them from all other species in the genus that have an oral sucker present and lack a ventral. The new species differs from M. bivesiculatum by having a larger maximum egg size (135 by 70 compared to 127 by 65), uterine loops that overreach the ceca laterally rather than being intercecal, a shorter distance from the posterior testis to the posterior arch of the cyclocoel (70 [0-110] compared to 400), and by being from a magpie from the People's Republic of China rather than being from a barbet from Sri Lanka. The new species is most similar to M. dumetellae, but differs from this species by having wider eggs (65 compared to 60), a longer body (10,400- 13,350 compared to 8,500), a shorter cirrus sac (470-565; 3-5% of the body length compared to 595; 7%), a smaller ratio of the pharynx to the oral sucker (1:1.0-1:1.3 compared to 1:1.7), more laterally extensive uterine loops (overreaching the ceca compared to being interececal), the anterior extent of the vitelline fields reaching to the level of the pharynx as compared to terminating posterior to the cecal bifurcation, and by being from a magpie from the People's Republic of China rather than from a catbird from the United States.

Cyclocoelid (Morishitiumsp.) Trematodes from an Air Sac of a Purple Sandpiper,Calidris maritima(Brünnich)

“…These specimens lacked a discernable oral sucker and an acetabulum, which is consistent with the ''rauschi'' body type as defined by Dronen and Tkach (2014). Only 2 species of Morishitium, M. rauschi Gupta and Gupta, 1979 and Morishitium texanense Dronen, 2007, display the rauschi body type (Dronen and Tkach, 2014), but only M. texanense is known from North America. Detailed study of the specimens was hampered by their general condition and by the extensive uterus that obscured the anterior testis and the ovary in many specimens.…”

Central European parasitic flatworms of the Cyclocoelidae Stossich, 1902 (Trematoda: Plagiorchiida): molecular and comparative morphological analysis suggests the reclassification of Cyclocoelum obscurum (Leidy, 1887) into the Harrahium Witenberg, 1926

“…Numerous keys to this family have previously been published (Kossack, 1911; Witenberg, 1923, 1926; Bashkirova, 1950; Dubois, 1959; Feizullaev, 1980; Kanev et al . 2002; Dronen, 2007; Dronen and Tkach, 2014; Dronen and Blend, 2015). Yamaguti (1971) further divided this family into three subfamilies.…”

“…Although family Cyclocoelidae was erected over a century ago, the status of many cyclocoelid species remains controversial or uncertain. Numerous keys to this family have previously been published Witenberg, 1923Witenberg, , 1926Bashkirova, 1950;Dubois, 1959;Feizullaev, 1980;Kanev et al 2002;Dronen, 2007;Dronen and Tkach, 2014;Dronen and Blend, 2015). Yamaguti (1971) further divided this family into three subfamilies.…”

The first report of Morishitium vagum (Trematoda: Cyclocoelidae) in Turdus merula in Iran

“…The reported valid species from this bird include Morishitium elongatum (Harrah 1921), Morishitium petrowi (Oganesov 1959) and Cyclocoelum polonicum (Machalska 1980) (Machalska, 1980;Rząd et al, 2014;Norman & Vasyl, 2014). Therefore, this paper is the fi rst report of M. vagum in Turdus merula in the word.…”