Proteocephalus sagittus La Rue 1911
Creators: name: Tomáš Scholz
name: De Chambrier, Alain
name: Shimazu, Takeshi
name: Ermolenko, Alexey
name: Waeschenbach, Andrea
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Cestoda
Proteocephalidea
Proteocephalidae
Proteocephalus
Proteocephalus sagittus

description: <i>3.2.1. Proteocephalus sagittus <b>(Grimm, 1872) La Rue, 1911</b></i> <i>Fig. 2</i> Syns.: <i>Ichthyotaenia sagitta</i> Grimm, 1872; <i>Proteocephalus pamirensis Dzhalilov and Ashurova, 1971</i> <i>Taxonomic summary</i> <i>Type host</i>: <i>Barbatula barbatula</i> (Linnaeus, 1758) (Cypriniformes: Nemacheilidae). <i>Other hosts</i>: <i>Cobitis</i> ‘ <i>taenia</i> ’ Linnaeus, 1758 (Cypriniformes: Cobitidae) (several species of loaches have been reported under this name — [2]); <i>Triplophysa stoliczkai</i> (Steindachner, 1866) (Cypriniformes: Nemacheilidae). <i>Site of infection</i>: intestine. <i>Type locality:</i> Saint Petersburg, Russia. <i>Type material</i>: not known to exist. <i>Distribution</i>: Europe (British Isles, Czech Republic, Hungary, Latvia, Russia, Slovak Republic, Ukraine), Palaearctic Asia (Russia — basins of the rivers Volga, Ob and Irtysh, Tajikistan). <i>Selected references</i>: Grimm (1872) [26], Freze (1965) [5], Dzhalilov and Ashurova (1971) [27], Scholz and Hanzelová (1998) [12], Scholz et al. (2003, 2007) [11,13], Jarkovský et al. (2004) [28], and Hypša et al. (2005) [10]. <i>Remarks</i> This species was described as <i>Ichthyotaenia sagitta</i> by Grimm (1872) [26] and transferred to <i>Proteocephalus</i> by La Rue (1911) [29]. Scholz and Hanzelová (1998) [12] synonymized this species with <i>P. torulosus</i>, a specific parasite of cyprinid fishes in the Holarctic Region [12]. However, a subsequent study of new material as well as a comparative analysis of partial <i>ssrDNA</i> and 5.8S-ITS2 rRNA gene sequences delineated these as separate species [11,13]. The present study provides strong support for the validity of <i>P. sagittus</i> and made it possible to supplement species diagnosis by additional measurements not reported in the previous morphological descriptions (see [12,13,30]; Table 2). <i>Proteocephalus sagittus</i> has been found in Europe and parts of Palaearctic Asia [5,12]. <i>Barbatula barbatula</i>, which is the type host of this cestode, is found in most parts of Europe [1], but records of <i>P. sagittus</i> from this fish host are relatively scarce [3]. <i>Proteocephalus sagittus</i> has also been found in the cobitid <i>Cobitis</i> ‘ <i>taenia</i> ’ in Europe and nemacheilid <i>Triplophysa stoliczkai</i> in Tajikistan,but no material suitable for molecular evaluation was available to test whether tapeworms from these hosts are actually conspecific with <i>P. sagittus</i>. Records of <i>P. sagittus</i> from fishes other than loaches, such as <i>Cottus gobio</i> (Perciformes: Cottidae), <i>Gobio gobio</i>, <i>Leuciscus leuciscus</i> (Cypriniformes: Cyprinidae), and <i>Salvelinus alpinus</i> (Salmoniformes: Salmonidae) (e.g. [31,32]; see [3] for exhaustive list of records), are considered erroneous.
description: Published as part of <i>Tomáš Scholz, Alain de Chambrier, Takeshi Shimazu, Alexey Ermolenko &amp; Andrea Waeschenbach, 2017, Proteocephalid tapeworms (Cestoda: Onchoproteocephalidea) of loaches (Cobitoidea): Evidence for monophyly and high endemism of parasites in the Far East, pp. 871-883 in Parasitology International 66</i> on pages 873-875, DOI: 10.1016/j.parint.2016.09.0161383-5769, http://zenodo.org/record/886409