Kynotus ankisiranus

Csuzdi, Csaba, Razafindrakoto, Malalatiana & Hong, Yong, 2017, Three new species of Kynotus from the Central Highlands of Madagascar (Clitellata, Megadrili), European Journal of Taxonomy 336, pp. 1-14: 3-6

publication ID

https://doi.org/10.5852/ejt.2017.336

publication LSID

lsid:zoobank.org:pub:A61DAF10-1819-4C90-A64A-1F1DDDAC220D

DOI

http://doi.org/10.5281/zenodo.3848026

persistent identifier

http://treatment.plazi.org/id/03F2B140-FFE1-FF8C-FDA7-F9E01506FBF0

treatment provided by

Carolina

scientific name

Kynotus ankisiranus
status

sp. nov.

Kynotus ankisiranus  sp. nov.

urn:lsid:zoobank.org:act:DDAFA680-A9E8-4A8B-AD38-9FB52F7378F2

Figs 2View Fig, 5View Fig

Diagnosis

Length 70–90 mm, diameter 3 mm. Colour grey with slight red pigmentation at the head on dorsum. Segments 1–3 simple, 4–10 biannulate. Setae appear from segment 2 and clearly visible, male pores ventral on 16. Clitellum circular on 18–27, ½28. Three rows of spermathecae of elongated oval-shape in 13/14, 14/15, 15/16. No septa notably thickened. Genital setal glands in 14, 15.

Etymology

The species epithet refers to the type locality, Mt Ankisira National Park.

Material examined

Holotype

MADAGASCAR: clitellate, Ambalavao District , Sendreisoa , Namoly, Mt Ankisira National Park, Aristida  grassland at the edge of primary forest, 22°06′45.8″ S, 46°56′33.8″ E, 1500 m a.s.l., 24 Feb. 2015, Y. Hong and M. Razafindrakoto leg. ( HNHM / AF 5658View Materials).

GoogleMaps 

Paratypes

MADAGASCAR: 2 clitellate, 3 aclitellate adults ( HNHM / AF 5659), 2 aclitellate ( CHBNU MD- 06- AL 5), locality and date same as for holotype.

Description

Holotype 50 mm in length, diameter after clitellum 3 mm, segment number 98, tail missing. Paratypes 72–86 mm in length, 3 mm in diameter, segment number 170–179. Colour grey with red pigmentation at head on dorsum. Head zygolobous, segments 1–3 simple, 4–10 biannulate. Dorsal pores lacking. Setae small, ab and cd clearly observed from segment 2. Setal arrangement (holotype) after clitellum aa:ab:bc:cd:dd = 15:1.25:9.5:1:18, dd = 0.32 U ( Fig. 2AView Fig). Clitellum annular on segments 18–27, ½ 28.

Male pores ventral on 16. Female pores not seen. Spermathecal pores in 13/14 (2), 14/15 (2), 15/16 (2) from bc to cd. Genital setal pores in variable position between ab and cd on 14, 15.

Internal characters

Large muscular gizzard in 5. Septa all membranous. Calciferous glands, lamellae and typhlosolis lacking. Dorsal blood vessel simple throughout, last pair of hearts in 11. Excretory system holoic, vesiculate. Two pairs of testes and sperm funnels in 10, 11 enclosed in large peri-oesophageal testis sacs. Seminal vesicles lacking. Ovaries in 13. A pair of large, oval copulatory chambers occupying the ventral space of segments 16–17. Each copulatory chamber bearing an irregular prostate-like gland (pseudoprostate) reaching segment 21. Spermathecae elongated, oval-shaped, with short duct attached at 13/14(2), 14/15(2), 15/16(2) in variable position arranged from between bc to cd ( Fig. 2BView Fig). Two pairs of genital setal glands present in segments 14, 15 above ab and around cd respectively. The genital setae are slightly curved, with spoon-shaped apex, length 1.6–1.7 mm, diameter at the middle 0.05 mm, ornamentation dense serrations ( Fig. 2View Fig C–D).

Remarks

The new species belongs to the alaotranus  group ( Table 2) characterized by biannulate segments between 4–10. With its smaller size and red pigmentation on the dorsum, K. ankisiranus  sp. nov. most closely resembles K. minutus Csuzdi, Razafindrakoto & Blanchart, 2012  , but differs from it by the longer clitellum (18–26 vs 18–27, ½ 28) and the number of genital setal glands (single pair in 15 vs two pairs in 14, 15). K. amkisiranus  sp. nov. is clearly different from all the examined alaotranus  group’s species by its COI barcode as well ( Table 3, Fig. 5View Fig).

HNHM

Hungarian Natural History Museum (Termeszettudomanyi Muzeum)