Published March 20, 2025
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TABLE 1 in Two new earthworm species of the genera Eutyphoeus Michaelsen, 1900 and Priodoscolex Gates, 1940 (Crassiclitellata: Acanthodrilidae) from India
Authors/Creators
- 1. Zoological Survey of India (Ministry of Environment, Forest and Climate Change, Government of India), FPS Building, Indian Museum complex, Kolkata 700016, India.
- 2. Zoological Survey of India (Ministry of Environment, Forest and Climate Change, Government of India), M Block, New Alipore, Kolkata 700053, India.
Description
TABLE 1. Comparative analysis between the new species and described species
| Characters/species | Priodoscolex maduraiensis Ahmed & Marimuthu, sp. nov. | Priodoscolex montanus Gates, 1940 |
|---|---|---|
| Length | 92–280 mm | 230–313 mm |
| Width | 3–6 mm | 3–4 mm |
| Segments | 211–389 | 306–384 |
| Setae | Perichaetine, except segment 18, ventral setae on segments 12–21 sometimes 11 and 22 displaced anteriorly or posteriorly of the setal line | Perichaetine, ventral-most setae may be displaced anteriorly or posteriorly to produce a zigzagged appearance of the transverse setal line |
| Clitellum | Saddle shaped on segments 13–18 | Saddle shaped on segments 13, ½13– 19 |
| Spermathecal pores | Three pairs 7,8 and 9 (just posterior to 6/7,7/8 and 8/9 | Two pairs in 8 and 9 (slightly posterior to7/8 and 8/9) |
| Male pores | Closely paired in segment 18 in a square-shaped depression | Closely paired in segment 18 in an oval, transverse genital shield |
| Typhlosole | Simple, lamelliform begin in segments 26–28 | Simple, lamelliform begin in segments 27–31 |
| Seminal vesicles | In segments 11 and 12 | In segment 11 and 12 |
| Spermathecae | Three pairs in segments 7, 8 and 9 sometimes anterior directed in segments 6, 7 and 8, with digitiform, ectal diverticulum | Two pairs in segments 8 and 9, with digitiform, ectal diverticulum |
Notes
Published as part of Ahmed, Shakoor, Banerjee, Dhriti & Marimuthu, Nithyanandam, 2025, Two new earthworm species of the genera Eutyphoeus Michaelsen, 1900 and Priodoscolex Gates, 1940 (Crassiclitellata: Acanthodrilidae) from India, pp. 244 in Zootaxa 5609 (2) on page 244, DOI: 10.11646/zootaxa.5609.2.5, http://zenodo.org/record/15215020
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Additional details
Identifiers
References
- Gates, G. E. (1940) Indian earthworms. VIII - XI. Records of the Indian Museum, 42 (1), 115-143. https://doi.org/10.26515/rzsi/v42/i1/1940/162455