taxonID	type	description	language	source
3D1B87D8FFFEFFC312A8F4F410C53BE7.taxon	description	(Fig. 2)	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFEFFC312A8F4F410C53BE7.taxon	materials_examined	Material examined. Holotype: One mature (complete body), (MZ 17 - 574 - 1 A, IEW 528 - 17), (Registration number: DHSGV-ZDM-H 001), natural forests (22 º 67 ’ 06 ” N; 93 º 03 ’ 41 ” E) Phawngpui Blue Mountain National park Lawngtlai district towards the southeast of Mizoram, close to river Chhimtuipui, 1 August 2017, coll. Shweta Yadav. Paratypes: One mature (2 – 3 segment taken from anal part for DNA extraction) (MZ 17 - 574 - 1 A 1), data same as for holotype; 2 clitellate specimen (MZ 17 - 700 - 23 A 20), grasslands (22 º 70 ’ 87 ” N; 93 º 01 ’ 11 ” E) Cheural village sector-Saiha, Mizoram, data same as for holotype. 1 mature (caudal segment taken for DNA extraction) (MZ 17 - 609 - 6 A 2), natural forests, (22 º 63 ’ 81 ” N; 93 º 02 ’ 44 ” E) Phawngpui Blue Mountain National Park, close to the peak of blue mountain, Mizoram, data same as for holotype. Paratypes (Registration number: DHSGV-ZDM- 272016005), Bold accession number — ADL 0658.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFEFFC312A8F4F410C53BE7.taxon	diagnosis	Diagnosis. Length 119 – 187 mm, diameter 4 – 4.9 mm, segments 130 – 160. Prostomium tanylobic. First dorsal pore in xi / xii. Male pores in xvii. A single pair of spermathecal pores in intersegment 7 / 8 at ab. Pair of genital markings present ventrally in segments ix / x / xi / xii / xvi at ab and at a on xviii / xix / xx / xxi. Septa 6 / 7 / 8 absent. Intestinal caeca broadly tubular. Holandric, seminal vesicle in xii not extends much. Four pairs of supra-intestinal glands. Prostate glands tubular, paired in xvii to xxi; ducts twisted and directly attached to body wall. Bidiverticulate spermathecae. Penial setae with slightly curved and pointed tip.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFEFFC312A8F4F410C53BE7.taxon	description	Description. External characters: Body cylindrical, length 119 – 187 mm, diameter 4 – 4.9 mm on clitellum, segments 130 – 160. Prostomium tanylobic. Colour, pigmented brownish, anterior seven segment relatively darkly pigmented while first two segment faded in live sample. First dorsal pore on intersegmental region of xi / xii. Clitellum annular, extends up to four segments i. e., 1 / 3 xiii – xvii. Setae originates from segment iii, arranged regular, uniform throughout the body, setal arrangement aa = 2 ab = 0.5 bc = 1.4 cd = 0.1 dd on xii, aa = 3.2 ab = 1.7 bc = 2.5 cd = 0.15 dd on xxiv. One pair of spermathecal pores with transverse slit openings on intersegment 7 / 8 at ab. Female pore on segment xiv, between setae aa, presetal, paired, visible in the form of an elongated oval circle of light color. Male genital region avestibulate, pores discharges through transverse aperture on porophores in xvii on setal arc of b or lateral to b. Porophores encircled by thick elliptical projected mass with tapering ends. A distinct groove visible between both projected areas carrying male pores. Genital markings paired, postsetal on segments ix / x / xi / xii / xvi at ab, and paired, postsetal at a on xviii / xix / xx / xxi. Internal characters: Septa 4 / 5 / 6 thickened, muscular, septa 6 / 7 / 8 absent and 8 / 9 / 10 relatively less thickened. Septa 8 / 9 and 9 / 10 pulled backwardly. Oesophagus with a single gizzard in segments between v / vi and viii / ix. Dorsal blood vessel complete, extends anterior to gizzard in segment iii. A pair of discrete intramural calciferous glands in xii. Intestine begins in segment xv. Last pair of heart in segment xiii. Lateral intestinal caecae on segment xxvii paired, dorsally directed, broadly tubular. Median ventral caecae unpaired, 18 in number from segments xxxiii – l, supra-intestinal glands 4 pairs in lxxi – lxxv. Typhlosole originate from segment xxvii, simple, lamelliform. Testis holoandric, seminal vesicle in ix and xii, later one extends up to segment xiv, prostate tubular extending from xvii to xxi, ducts twisted and directly attached to body wall (Fig. 2 f). Spermathecae paired, bidiverticulate, each with a multiloculate shortly stalked ental diverticula. Both diverticulum opens into a duct through a single opening, duct short and stout. Penial setae 1.30 – 2.16 mm long, 44 – 53 µm diameter, smooth, tip pointed and slightly curved (Fig. 2 i), 3 – 4 penial setae per battery. Genital marking gland absent.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFEFFC312A8F4F410C53BE7.taxon	etymology	Etymology. “ phawngpuiensis ” is derived from its type habitation the Phawngpui Blue Mountain National park, Mizoram. Variations. The main variations observed between holotype and paratypes are in position of genital markings such as: in holotype the genital marking is present as paired, postsetal on segments ix / x / xi / xii / xvi at ab, and paired, postsetal at a on xviii / xix / xx / xxi segments. While in paratypes, sometimes genital marking on segment viii paired, postsetal at ab or sometimes genital marking on segments xix / xx / xxi were absent. Other variation observed were in female pore, in holotype female pore was clearly visible while in paratypes the position of pore was unclear.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFEFFC312A8F4F410C53BE7.taxon	discussion	Remarks. The new species can be categorized into the Eutyphoeus hastatus group (Gates 1958) characterized by pair of spermathecal pores in 7 / 8 at ab, avestibulate male pores, holandric testes, short seminal vesicles in xii and a complete dorsal blood vessel. It is discriminated from other species of the group by bidiverticulate spermathecae, spermathecal pore at ab in 7 / 8, arrangements of genital markings and absence of genital marking glands (Table 3).	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFCFFCD12A8F49717DB3B0B.taxon	description	(Fig. 3)	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFCFFCD12A8F49717DB3B0B.taxon	materials_examined	Material examined. Holotype: One mature (complete body), (MZ 05 A 160405, IEW 092 - 17), (Registration number — ZSI CZRC A. 20049), natural forests (24 ° 05 ’ 08 ” N; 92 ° 48 ’ 02 ” E) Dampa Tiger Reserve Forest, range terei, village serei, Mizoram. 28 September 2016, coll. Samuel W James & Shweta Yadav. Paratypes: One mature (caudal segment taken for DNA extraction) (MZ 05 A 170406, MZ 05 A 210410), data same as for holotype. Paratypes (Registration number — DHSGV ZDM 272016006), Bold accession number — ADH 3131.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFCFFCD12A8F49717DB3B0B.taxon	diagnosis	Diagnosis. Length 170 – 180 mm, diameter 5.6 – 6 mm, segments 130 – 150. First dorsal pore in xi / xii. Female pore single on left side in xiv. Avestibulate, male pores in xvii. Pair of genital markings present ventrally in segments vii (postsetal), viii (presetal) at a, xvi (postsetal) lateral to b, xviii (postsetal at ab), sometimes on xix post setal at a. Septa 6 / 7 / 8 absent. Lateral intestinal caeca simple in xxviii. Metandric. 5 – 6 pairs of supra-intestinal glands. Prostate glands tubular, paired in xvi to xxiii – xxv. Bidiverticulate spermathecae. Penial setae with spoon shaped tip and pointed ends.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFCFFCD12A8F49717DB3B0B.taxon	description	Description. External characters: Length 170 – 180 mm by 5.6 – 6 mm on clitellum, segments 130 – 150. Prostomium (evanescent shape, bit distorted during preservation). Colour dark caramel. First dorsal pore intersegmental in xi / xii. Clitellum annular, extends up to four segments i. e., 1 / 3 xiii – xvii. Setae originates from segment iii and setal arrangement are aa = 2.5 ab = 1.3 bc = 1.5 cd = 0.08 dd on xii, aa = 3 ab = 1.6 bc = 1.7 cd = 0.1 dd on xxiv. Spermathecal pores one pair on intersegmental region of 7 / 8, transverse slits like opening or small oval papillae at ab or lateral to b. Female pore single on segment xiv, single on left side at setal line a. Male genital region avestibulate, male pore discharges on the surface through the slit like aperture on protruded dark coloured porophores on segment xvii lateral to setal arc of b. Both porophores are thick short tubular outwardly focussed with centric male pores. Genital markings paired on vii (postsetal), viii (presetal) at a, viii (postsetal) at ab, xvi (post setal) lateral to b just above the encircled area of male genital region, a unique paired elongated marking having two small circular protuberance on xviii (post setal at ab), sometimes on xix post setal at a. Internal characters: Septa 4 / 5 / 6 thickened, muscularized, septa 6 / 7 / 8 absent and 8 / 9 / 10 relatively less thickened, muscular. Oesophagus contains a single gizzard between v / vi and viii / ix. Dorsal blood vessel complete, extends anterior to gizzard in segment iii. Discrete intramural calciferous glands in xii. Intestine begins in segment xv. Last pair of heart in segment xiii. Lateral intestinal caecae paired, conical in shape, ventrally directed in xxviii. Median ventral caecae unpaired, 5 – 6 in number from segments xxxi – xliii, Supra-intestinal glands 5 – 6 pairs in segment lxxxi – lxxxv. Typhlosole begins from xxvi simple, lamelliform. Testis metandric, seminal vesicle extending upto xvi. Prostate tubular occupy xvi to xxiii – xxv. Spermathecae paired, bidiverticulate, each with a 2.5 – 2.8 mm long multilobulated, dorsally directed ectal diverticula, both diverticulum opens into a duct through a separate opening, smaller in size in comparison to ampullae, ampulla cylindrical in shape, duct short. Penial setae 2 – 3 mm long, without ornamentation, tip spoon shape with pointed ends (Fig. 3 i). 1 – 3 penial setae per battery. Genital marking gland absent.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFCFFCD12A8F49717DB3B0B.taxon	etymology	Etymology. “ serei ” is derived from the Serei village in which the type’s habitation is found. Variations. The variations were observed in shape and position of spermathecal pores. In holotype, the spermathecal pore opens with a transverse slits on intersegmental region of 7 / 8 at b extending towards a while in one of its paratypes, spermathecal pore was present on a small oval papilla on intersegmental region of 7 / 8 at b extending towards lateral to b. Genital marking were present on segment xviii; holotype has two small circular protuberance within an elongated markings, while one of the paratypes has paired elongated markings with four small circular protuberances.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFFCFFCD12A8F49717DB3B0B.taxon	discussion	Remarks. The new species belongs to the Eutyphoeus gigas group (Gates 1958) characterized by pigmented body, presence of first dorsal pore on xi / xii, single female pore on left side female pore of right side absent, presence of lateral intestinal caeca and numerous ventral caeca. The dorsal blood vessel is aborted and anterior testes along with the funnels of segment x and their ducts is absent. It is distinguished from other species of the group E. gigas Stephenson, 1917 by presence of spoon shaped tip of penial setae with lack of any kind of ornamentation and absence of genital marking glands (Table 3).	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFF2FFCF12A8F4EE12BA3C15.taxon	description	(Fig. 4)	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFF2FFCF12A8F4EE12BA3C15.taxon	materials_examined	Material examined Holotype: One mature (caudal segment used for DNA extraction), (MZ 016 A 150570, IEW 257 - 17), (Registration no. ZSI CZRC A. 20050), natural forests (23 ° 54 ’ 89 ” N; 92 ° 91 ’ 52.6 ” E) Tawi Wild Life Sanctuary, core area, Hualtu, Mizoram, India, 12 October 2016, coll. Samuel W James & Shweta Yadav. Paratypes: 1 mature (caudal segment used for DNA extraction) (MZ 013 A 10517), natural forests, (23 ° 53 ’ 43 ” N; 92 ° 91 ’ 27 ” E) Tawi Wild Life Sanctuary, dense and deeply rooted trees, rich in humus, close to pond, Mizoram, India, 9 October 2016, coll. Samuel W James & Shweta Yadav. 2 clitellate (MZ 014 A 90537), close to river Chalkhawhkawn, (23 ° 56 ’ 39 ” N; 92 ° 92 ’ 91 ” E) Tawi Wild Life Sanctuary Hualtu, Mizoram, India, 10 October 2016, coll. Samuel W James & Shweta Yadav. One mature (amputated postclitellar region) (MZ 016 A 160571), data same as for holotype. (Registration number DHSGV ZDM 272016007). Bold accession number-ADG 9128.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFF2FFCF12A8F4EE12BA3C15.taxon	diagnosis	Diagnosis. Length 130 – 150 mm, diameter 3.9 – 5 mm, segments 100 – 110. Prostomium tanylobic. First dorsal pore in xi / xii. Spermathecal pores paired in 7 / 8 thick muscular encircle, lateral to b. Bivestibulate, male pores present in a deep quadrangular depression / fissure in xvii. Genital markings absent. Septa 6 / 7 / 8 aborted. Lateral intestinal caecae absent. Holandric, seminal vesicle in xii not extends much. 4 pairs of supra-intestinal glands. Prostate tubular, compact. Ornamented, spoon shaped tip of penial setae slightly bent on the end. Bidiverticulate, bulbous end spermathecae.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFF2FFCF12A8F4EE12BA3C15.taxon	description	Description. External characters: Length 130 – 150 mm with 3.9 – 5 mm of diameter. Segments 100 – 110. Prostomium tanylobic. Colour barn red, slightly lighter on ventral side. First dorsal pore on intersegmental region of xi / xii. Clitellum annular, extends up to five segments i. e., from xiii – xvii. Setae aa = 2 ab = 1.16 bc = 3.2 cd = 0.23 dd on xii, aa = 2.5 ab = 1.3 bc = 1.92 cd = 0.28 dd on xxiv. Spermathecal pores paired in 7 / 8 with transverse slit like opening well marked with thick muscular encircle, lateral to b. Female pores on segment xiv, paired, minute, pre-setal at a. Male genital region bivestibulate, male pores present in a deep quadrangular depression / fissure which sometimes appears single however, distinctly located in a separate vestibule in xvii. Lateral side of clitellar region projected into a ventrally directed fold. In live sample both fold touches each other in the centre. Genital markings absent. I nternal characters: Septa 4 / 5 / 6 muscular, 6 / 7 / 8 aborted and 8 / 9 – 10 / 11 thickened. Oesophagus with a single large gizzard in segments between v / vi and viii / ix. A pair of discrete intramural calciferous gland in segment xii. Dorsal blood vessel complete, extends anterior to gizzard in segment iii. Lateral intestinal caecae absent. Median ventral unpaired caecae 6 – 7, in segments xxxiii – xli, supra-intestinal glands 4 pairs in segments lxiv – lxix. Typhlosole simple lamelliform in xxvii – lxxvii. Holandric, seminal vesicle in ix and xii, those of xii extending upto xiv. Prostate tubular, compact, extending upto xix. Penial 3.84 mm long, ornamented with irregular interrupted circles of fine spines, a spoon shaped depression just posterior to tip, which is curved with and have a blunt end, 2 – 3 penial setae per battery. Spermathecae paired, bidiverticulate, bulb like terminals of two lateral diverticulae, with circular or spheroidal ampulla. Genital marking glands absent.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFF2FFCF12A8F4EE12BA3C15.taxon	etymology	Etymology. “ tawi ” is derived from Tawi Wild Life Sanctuary in which the habitation of its type is found.	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
3D1B87D8FFF2FFCF12A8F4EE12BA3C15.taxon	discussion	Remarks. The species belongs to the Eutyphoeus hastatus group (Gates 1958) characterized by holandric testis, bidiverticulate spermathecae, spermathecal pores at b or lateral to b and complete dorsal blood vessel. This species is distinguished by other species of the group such as E. manipurensis manipurensis, E. mizoramensis and E. hastatus mainly by position of spermathecal pores on intersegmental region of 7 / 8 lateral to b, vestibulated male genital region, lack of lateral intestinal caecae and absence of genital marking. While, it shows a close resemblance with E. marmoreus the main distinguishing character is lack of lateral intestinal caecae and spoon like depression of penial setae, just posterior to tip and terminates into a blunt end. E. marmoreus is a species not yet reported in India, it is known from its type locality Tedim (Chin Hills), Myanmar. Due to the close proximity of the locality i. e., Mizoram shares its border with Myanmar therefore included for comparison. ...... continued on the next page	en	Tiwari, Nalini, Lone, Azhar Rashid, Thakur, Samrendra Singh, James, Samuel W., Yadav, Shweta (2021): Three uncharted endemicearthworm species of the genus Eutyphoeus (Oligochaeta Octochaetidae) from Mizoram, India. Zootaxa 5005 (1): 41-61, DOI: 10.11646/zootaxa.5005.1.3
