Polypheretima spiridonovi ( Thai , 1996 )

Nguyen, Tung T., Tran, Binh T. T. & Nguyen, Anh D., 2014, Earthworms of the ' acaecate' Pheretima group in Vietnam (Oligochaeta: Megascolecidae), with description of a new species from the Mekong delta, Zootaxa 3866 (1), pp. 105-121 : 116

publication ID

https://doi.org/ 10.11646/zootaxa.3866.1.5

publication LSID

lsid:zoobank.org:pub:A3620CFB-E223-479C-8A9B-FF84F30143CF

DOI

https://doi.org/10.5281/zenodo.6144724

persistent identifier

https://treatment.plazi.org/id/0F1A87E0-FFF0-FFB3-A8CA-FB6AF0F0F8C7

treatment provided by

Plazi

scientific name

Polypheretima spiridonovi ( Thai , 1996 )
status

 

Polypheretima spiridonovi ( Thai, 1996)

( Fig. 3 View FIGURE 3 )

Pheretima spiridonovi Thai, 1996: 3 , Fig. 2 View FIGURE 2 C.

Polypheretima spiridonovi — Nakamura 1999: 7; Blakemore 2007: 93.

Type material. Holotype: 1C (SORC-HV.226) Khanh Hoa Province, Duc Mu pass, 9 January 1989, coll. Spiridonov S.E. Paratype: 1C (SORC-PV.226), same data as sample SORC-HV.226 ( Thai 1996).

Description. Body cylindrical. Colour light brown. Prostomium epilobous. Clitellum XIV–XVI. First dorsal pore in 12/13. Setae numerous, regularly distributed on segments, 113 in IV, 136 in XIII, 120 in XXV, aa=1.5–2ab, zz=2–5zy. Male porophore on the bottom of a cone-like depression, about 0.25 body circumference apart. No genital markings in spermathecal and male regions. Numerous spermathecal pores in paired batteries, 6 pairs in 4/ 5, 6 pairs in 6/7 and 7 pairs and a single battery in 5/6. Ampulla heart-shaped, diverticula simple, attaching to duct. Holandric. Testes sacs ventral. Lymph glands absent. Ovaries large on septum 12/13. Intestine beginning at XV, without caeca. Last hearts in XII. Typhlosole simple, lamelliform, T=0.22. Septa 8/9/10 absent, 5/6/7/8 thickened. Pharyngeal micronephridia in 6/7. (Data from Thai 1996: 3–4.)

Records from Vietnam. Khanh Hoa Province ( Duc Mu pass).

Distribution. Only known from Vietnam.

Remarks. The species is fairly similar to Polypheretima polytheca (Beddard, 1900) but differs in having spermathecal pores in 4/5–6/7, testes sacs in ventral position, absence of a copulatory pouch, and absence of genital markings. Types were rechecked for this study.

Kingdom

Animalia

Phylum

Annelida

Class

Clitellata

Order

Opisthopora

Family

Megascolecidae

Genus

Polypheretima

Loc

Polypheretima spiridonovi ( Thai , 1996 )

Nguyen, Tung T., Tran, Binh T. T. & Nguyen, Anh D. 2014
2014
Loc

Polypheretima spiridonovi

Blakemore 2007: 93
Nakamura 1999: 7
1999
Loc

Pheretima spiridonovi

Thai 1996: 3
1996
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF