Martiodrilus ( Botaria ) wayana Bartz & Decaëns, 2024

Martiodrilus ( Botaria) wayana Bartz & Decaëns , n. sp.

( Fig. 11 View FIG )

urn:lsid:zoobank.org:act:

TYPE MATERIAL. — Holotype. French Guiana • Adult; Tumuc-Humac, Mitaraka Massif , rocky savannah on Borne 1 Inselberg , in terrestrial bromeliad roots; 2°12’29”N, 54°26’20”W; 585 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0134 ; MNHN. GoogleMaps

Paratypes. French Guiana • 3 adult specimens; Tumuc-Humac, Mitaraka Massif , rocky savannah on Borne 1 Inselberg ; 2°12’29”N, 54°26’20”W; 585 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0378 , EW-MI15-0136 , EW-MI15-0137 ; CEFE GoogleMaps • 3 adult specimens; same data as for preceding; BOLD Sample ID: EW-MI15-0133 , EW-MI15-0135 , EW-MI15-0138 ; MNHN GoogleMaps .

OTHER MATERIAL EXAMINED. — French Guiana • 1 juvenile specimen; Tumuc-Humac, Mitaraka Massif , hilltop forest on Borne 1 Inselberg ; 2°12’35”N, 54°26’12”W; 600 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0220 ; MNHN GoogleMaps • 10 juvenile specimens; Tumuc-Humac, Mitaraka Massif , rocky savannah on Borne 1 Inselberg ; 2°12’29”N, 54°26’20”W; 585 m a.s.l.; III.2015; T. Decaëns, E. Lapied leg.; BOLD Sample ID: EW-MI15-0140 , EW-MI15-0141 , EW-MI15-0142 , EW-MI15-0143 , EW-MI15-0144 , EW-MI15-0145 , EW-MI15-0146 , EW-MI15-0147 , EW-MI15-0148 , EW-MI15-0149 ; MNHN GoogleMaps .

ETYMOLOGY. — This species is named after the Wayanas Amerindian people who inhabited this region of French Guiana and have left multiple petroglyphs and stone assemblages on the Borne 1 inselberg ( Fleury et al. 2021).

ECOLOGY. — Martiodrilus ( B.) wayana Bartz & Decaëns , n. sp. has been found essentially in inselberg rocky savannahs (94.44% of specimens) ( Fig. 11D View FIG ), where it inhabits the root mat of terrestrial bromeliad formations ( Fig. 11G View FIG ).

DISTRIBUTION. — Martiodrilus ( B.) wayana Bartz & Decaëns , n. sp. is only known from the Borne 1 inselberg, at the frontier between French Guiana and Brazil, in the Mitaraka Massif.

DESCRIPTION

External morphology ( Fig. 11A, B View FIG )

Body shape cylindrical. Body pigmentation dorsally dark brown, ventrally yellow. Body length: 74 mm in the holotype, 55 to 70 mm in the paratypes (average: 60.7 mm; n = 3), after ethanol fixation. Body mass: 0.50 g after ethanol fixation in the holotype, 0.11 to 0.48 g in the paratypes (average: 0.23 g; n = 3). Diameter: 3.2 to 5 mm in the preclitellar region, 3.5 to 4.5 mm in the clitellum, 3.4 to 5 mm in the postclitellar region. Number of segments: 140 in the holotype, 104 to 141 in the paratypes (average: 123; n = 3). Prostomium proepilobic. One pair of longitudinal grooves going anterior to posterior through segment I in line of nephridial pores in II. Setae closely paired, ab beginning in II, cd in III or IV. Setal arrangement aa:ab:bc:cd:dd = 4:1:5:1:19. Clitellum in (dorsal XIII, XIV) XV-(XXV) XXVI, saddle-shaped ( Fig. 11A View FIG ). Genital markings in variable in III-X, intraclitellar in XIV-XXIII ( ab position).Tubercula pubertatis linear in XX-½ XXVI ( Fig. 11B View FIG ). Male pores not recognised, and ovipores in XIV, almost in the border of 13/14, in diagonal to b. Spermathecal pores in 5/6, 6/7 and 7/8, inter segmental near nephridial pore. Nephridial pores begining in II, in CD line.

Internal anatomy ( Fig. 11C View FIG )

Septa: membranous. Gizzard: muscular and well developed in VI, displaced to X, with an average size (width × length) of 2.25 × 2.78 mm. Calciferous glands: eight pairs in VII-XIV, those in X and XI twice smaller than the others; all with peduncula attaching the inner middle of the gland to esophagus, kidney-shaped with lobular distal appendix, and composite tubular structure. Esophagus-intestine transition in XVIII/XIX; intestine without caeca. Typhlosole abruptly begining in XXV/XXVIII, structured as a long-folded lamella, occupying all the lumen. Hearts: six pairs, the two intestinal pairs in X-XI and well developed. Excretory apparatus holoic, nephridia with simple nephrostome. Testes sacs: midventral or hypoesophagic in X and XI, enclosing seminal vesicles. Seminal vesicles: two pairs in XI-XII; the first pair enclosed in septa, strap-shaped extending anteriously up to IX/X; the second pair extending to XIII, lobulated and attached to dorsal body wall. Spermathecae: three pairs, VI, VII and VIII, spatula-shaped without diverticula, of increasing size from VI to VIII.

REMARKS

Martiodrilus ( B.) wayana Bartz & Decaëns , n. sp. belongs to the subgenus Botaria because of the presence of three pairs of spermathecae. It resembles other species of this subgenus which share a clitellum in XV-XXVI, including M. ( B.) benhami , M. ( B.) feijooi , M. ( B.) gara , M. ( B.) gravis , M. ( B.) pano , M. ( B.) vassae and M. ( B.) motoloi Bartz & Decaëns , n. sp. It differs from all these species but M. ( B.) pano , by the position of its tubercula pubertatis in XX-½ XXVI, instead of XX-XXV in M. ( B.) benhami , ½ XIX-½ XXVI in M. ( B.) feijooi, XIX , 2/3XIX-XXIII, ½ XXIV in M. ( B.) gara, XX , 3/4XX- ½XXV in M. ( B.) gravis, XXI-XXV in M. ( B.) vassae and 1/3XX-½ XXV M. ( B.) motoloi Bartz & Decaëns , n. sp. It further differs from M. ( B.) pano by its smaller size ( 55 to 74 mm instead of 85 mm), by its brown instead of violet body pigmentation, and by the more anterior transition between esophagus and intestine. Martiodrilus ( B.) wayana Bartz & Decaëns , n. sp. is clearly separated from other species of Martiodrilus from the Mitaraka Massif by its COI barcode ( Table 2 View TABLE ). This species corresponds to OTU#083 in Maggia et al. (2021).