Eutyphoeus manipurensis manipurensis Stephenson, 1921

Tiwari, Nalini, Tiwari, Pooja, Shilpi, Kaushik, James, Samuel W., Gupta, Neelima & Yadav, Shweta, 2025, Describing ten new species of Eutyphoeus (Clitellata: Acanthodrilidae) from Manipur, North-East India, together with one new record, European Journal of Taxonomy 1012, pp. 128-171 : 162-163

publication ID

https://doi.org/10.5852/ejt.2025.1012.3035

publication LSID

lsid:zoobank.org:pub:0020EB32-A5B6-44BB-BF29-A97640B5700E

DOI

https://doi.org/10.5281/zenodo.17107468

persistent identifier

https://treatment.plazi.org/id/936A1433-FFBA-D81C-FE0C-0357FEACFC30

treatment provided by

Plazi

scientific name

Eutyphoeus manipurensis manipurensis Stephenson, 1921
status

 

Eutyphoeus manipurensis manipurensis Stephenson, 1921

Figs 13–14 View Fig View Fig ; Table 2 View Table 2

Material examined

INDIA – Manipur • 8 clitellates; Churachandpur ; 24.3728° N, 93.7097° E; 6 Oct. 2017; Shweta Yadav leg.; MNP17-993-39A10 , GoogleMaps MNP17-994-39A11 , GoogleMaps MNP17-995-39A12 , GoogleMaps MNP17-996-39A13 , GoogleMaps MNP17-997- 39A14 , GoogleMaps MNP17-999-39A17 , GoogleMaps MNP17-1001-39A19 , GoogleMaps MNP17-1003-39A21 GoogleMaps .

Description

Length 110–135 mm, diameter 3.9–4.4 mm. Total number of segments 150–189. Body color greyish brown, little paler ventrally. Prostomium tanylobic. First dorsal pore starts from intersegmental furrow of 10/11 or 11/12. Clitellum annular extends from ⅔ xiii–xvii. Setal arrangement lumbricine, aa: ab: bc: cd: dd = 1.72: 1: 1.82: 1.39: 10.15 on segment xii and aa: ab: bc: cd: dd = 2.96:1: 2.24: 1.23:11.91 on segment xxiv. Male genital region reddish in live specimen. Male genital orifices on prominent round papillae between ab on xvii, bounded with deep trench, outer margin of trench little swollen. Female pores paired, presetal, little inside a. Spermathecal pore in intersegmental furrow of 7/8, at ab, opens with transverse slit. Median region of segment viii slightly raised and glandular with several small papillae. In some specimens, paired small papillae in setal zone of viii, also post setal on viii, lateral to b. Single median on vii and viii, sometimes just beside spermathecal aperture on right side. On xvi, small paired papillae, postsetal, lateral to b with transverse row of four spherical papillae closely placed, postsetal. On xvii, paired small circular presetal papillae at a.

Single large gizzard between septa 5/6 and 8/9. Intestine originates from xv. Last pair of hearts in xiii. Lateral intestinal caeca in xvii, ventrally directed. Ventral intestinal caeca 20–24 in xxxi–lv. Supra-intestinal glands three pairs in lxxii–lxxvi. Holandric, testis sac in x and xi, seminal vesicles in ix and xii. Latter one extends up to xiv. Prostate tubular in xvii–xix. Spermathecae unidiverticulate, ampulla ovoid sac-like with small stalked hook-shaped diverticulum, spermathecal duct short and wide. Penial setae 4 per battery, 1–1.8 mm long, fine triangular teeth ornamentation with blunt tip and slightly bent anterior shaft.

Kingdom

Animalia

Phylum

Annelida

Class

Clitellata

SubClass

Oligochaeta

Order

Crassiclitellata

Family

Octochaetidae

Genus

Eutyphoeus

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