Drawida iucn, Blakemore, 2013

Blakemore, Robert J., 2013, Jeju-do earthworms (Oligochaeta: Megadrilacea) - Quelpart Island revisited, Journal of Species Research 2 (1), pp. 15-54 : 19-20

Drawida iucn sp. nov.

[ Fig. 3]

Material examined. IV0000261225 Holotype, figured ( Fig. 3) and dissected with small tissue sample taken for DNA analysis ( WO68 ). Collected 9 th Sept. 2012 by RJB from under rock on short walk from Botanic Gardens to IUCN meeting at Seogwipo (33̊15′10′′N 126̊33′40′′E); preservation was in 80% EtOH.

Etymology. From acronym for International Union of Conservation Networks who hosted the World Conservation Congress at Jeju and are concerned with promotion of species diversity. This does not imply support nor funding for the survey and its results from IUCN. Pronounciation is “eye-you-see-en”, a non-arbitrary combination of letters used as a word formed from an acronyms as permitted under ICZN recommendations (cf. Eisenia anzac Blakemore, 2011 from Japan).

Description. Length 73 mm. Segments 127, possibly the last 12 regenerated. Colour pale grey unpigmented with dark mid-dorsal line from 11. Prolobous. No dorsal pores. Clitellum not developed. Nephropores in c lines or above. Spermathecal pores in 7/ 8 in c lines. Male pores on blunt penes protruding slightly from wide slits centred median of cd lines in 10/11. Female pores in b lines in 11/12. Genital markings single, mid-ventrally offset in 8 and 11. Internally, septa 5/6-8/9 thick; 9/10 and 10/11 are conjoined and displaced to mid-10 supporting yellow testis sac with coiled vas deferens to prostate that attaches to male organ. Dorsal blood vessel single and hearts in 6-9. Spermathecae atria present anteriorly from 7/8 with long coiled duct to ampulla attached to 7/8 posteriorly in 8. Ovisacs (empty) present from septum 12/13 that along with 11/12 forms an ovarian chamber ventrally. Nephridial bladders elongate. Gizzards in 12-15 with muscular modification in 12 reduced.

Remarks. Drawida iucn agrees morphologically with D. anchingiana seogwipo on almost all points, except for lack of blue colour, GM details and extension of gizzards into 12. Moreover, the DNA barcode data in Appendix

1 mm Fig. 2. Drawida anchingiana seogwipo sub-sp. nov. holotype showing ventral aspect; gizzards and reproductive organs .

(WO68 vs. WO69) shows that there is some difference (3%) that is here considered sufficient to indicate speciation. D. iucn barcode also differs (4%) from D. a. halla (WO68 vs. w24), supporting their mutual separation.