Mesotriton Bolkay 1927

Duszynski, Donald W., Bolek, Matthew G. & Upton, Steve J., 2007, Coccidia (Apicomplexa: Eimeriidae) of amphibians of the world, Zootaxa 1667 (1667), pp. 1-77 : 55-56

publication ID

1175­5334

publication LSID

lsid:zoobank.org:pub:755DD8AE-C043-4411-BDFE-B9EC51F1D7E9

persistent identifier

https://treatment.plazi.org/id/722F8796-1625-FFCD-FF7A-FA47D38A7C9A

treatment provided by

Felipe

scientific name

Mesotriton Bolkay 1927
status

 

Host genus Mesotriton Bolkay 1927 View in CoL

(1 spp.)

Eimeria spherica ( Schneider, 1887) Levine and Becker 1933 ( Fig. 44)

Synonyms: Coccidium sphericum Schneider 1887; Cytophagus tritonis Steinhaus 1891 , pro parte; Eimeria tritonis ( Steinhaus 1891) Levine and Becker 1933 ; Karyophagus tritonis ( Steinhaus 1891) von Wasielewski 1896 ; non Eimeria spherica of Matubayashi 1937; non Eimeria spherica Dogiel 1948 , non Eimeria dogieli from fish.

Type host: Mesotriton alpestris (Laurenti 1768) , Alpine newt

Other hosts: Triturus cristatus (Laurenti 1768) , Crested newt; Lissotriton helveticus (Razoumovsky, 1789) , Palmate newt; Lissotriton vulgaris (L. 1758), Common newt.

Type locality: EUROPE: France .

Geographic distribution: EUROPE: France.

Description of sporulated oocyst: Oocyst shape: spheroidal; wall thickness: ~0.8; wall characteristics: 2 wall layers, (1 in line drawing), outer, smooth; inner thinner than outer; L x W: 35 (22–38); L/W ratio: 1.0; M, PG: absent; OR: present; OR characteristics: large spheroidal mass,>25, that consists of a homogeneous central body surrounded by granules of various sizes that occupies about 2/3 volume of oocyst. Distinctive features of oocyst: spheroidal shape and very large OR.

Description of sporocyst and sporozoites: Sporocyst shape: ellipsoidal, slightly pointed at both ends; L x W: 12–15 x 6–7; L/W ratio: ~2.1; SB: may be present (line drawing); SSB: absent; PSB: may be present (line drawing); SR: present; SR characteristics: amorphous to ellipsoidal mass of large granules, not exactly median, but closer to one side of the sporocyst (line drawing); SZ: elongate, slightly pointed at one end, slightly rounded at the other, and slightly longer than sporocyst (line drawing). Distinctive features of sporocyst: the sporocyst looks similar to an oocyst of Monocystis (line drawing).

Prevalence: Unknown.

Sporulation: Unknown.

Prepatent and patent periods: Unknown.

Site of infection: Intestinal mucosa.

Endogenous stages: Not described (?). However, Phisalix (1933) described endogenous stages of an Eimeria sp. from Triton alpester (= Mesotriton alpestris ) collected from the Jura and Alpes mountain range at 800 m and 2100 m elevation respectively, and around Paris. Those oocysts were 35 wide and sporocysts were 14 x 7, as were the sporozoites, suggesting that the species may be E. spherica . In the descriptions, meronts were 12–25 x 10.5–20 and contained 8–24 merozoites which were 8.4–21 x 3–3.1. Fully formed microgametocytes were ovoidal, measured 23 x 27, and contained at least 150 microgametes; microgametes were 6 x 3. Mature macrogametes were oval, 20 x 25, and took up the entire host cell.

Pathology: Unknown.

Materials deposited: None.

Remarks: This species was first described by Schneider (1887) in a 1 page note and later redescribed in detail by Lavier (1936). It has not been reported since then.

Eimeria tertia Lavier 1936 ( Fig. 45)

Type host: Mesotriton alpestris (Laurenti 1768) , Alpine newt.

Other hosts: None to date.

Type locality: EUROPE: France .

Geographic distribution: EUROPE: France.

Description of sporulated oocyst: Oocyst shape: ovoidal; wall thickness: ~0.6; wall characteristics: 2 wall layers (but 1 in line drawing) outer, smooth; L x W: 26 x 21 (22–33 x 18–25); L/W ratio: 1.2; M, PG: absent; OR: present; OR characteristics: large spheroidal mass of granules of various sizes and occupies about 1/2 volume of oocyst. Distinctive features of oocyst: ovoidal shape and large OR.

Description of sporocyst and sporozoites: Sporocyst shape: ellipsoidal, slightly pointed at both ends; L x W: 12–15 x 6–7; L/W ratio: ~2.1; SB: may be present (line drawing); SSB, PSB: both absent; SR: present; SR characteristics: compact, ellipsoidal mass of large granules in center of sporocyst (line drawing); SZ: elongate, slightly pointed at one end, slightly rounded at the other, and slightly longer than sporocyst (line drawing). Distinctive features of sporocyst: none.

Prevalence: Unknown.

Sporulation: Unknown.

Prepatent and patent periods: Unknown.

Site of infection: Intestinal mucosa.

Endogenous stages: Unknown.

Pathology: Unknown.

Materials deposited: None.

Remarks: At the time, this was the third new species described by Lavier (1936). It has not been seen since its initial description.

Kingdom

Animalia

Phylum

Chordata

Class

Amphibia

Order

Caudata

Family

Salamandridae

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