Triops emeritensis Korn & Pérez-Bote, 2010

Hundsdoerfer, Michael Korn Andy J. Green Margarida Machado Juan García-de-Lomas Margarida Cristo Luís Cancela da Fonseca Dagmar Frisch José L. Pérez-Bote Anna K., 2010, Phylogeny, molecular ecology and taxonomy of southern Iberian lineages of Triops mauritanicus (Crustacea: Notostraca), Organisms Diversity & Evolution (New York, N. Y.) 10 (5), pp. 409-440 : 435

Triops emeritensis Korn & Pérez-Bote n. sp.

( Fig. 10 )

Note. This species refers to the ‘Gitanilla’ phylogenetic lineage.

Etymology. The specific epithet refers to the geographic proximity of the type locality to the Roman town Emerita Augusta, the modern Mérida. The epithet is to be treated as adjectival for the purposes of nomenclature.

Material examined. Holotype ♂, Museum of Zoology Dresden ( MTD Crus 3109); Spain, Badajoz, La Albuera, Laguna de la Gitanilla, P. no. 103, leg. José L. Pérez-Bote, reared from sediments ). Paratypes: 16 ♂♂, 12 ♀♀, Museum of Zoology Dresden ( MTD Crus 2640, 2764– 2773, 3100–3102, 3104–3108, 3110–3118); same data as holotype . Other material: P.no. 102, 1♂, leg. Miguel Alonso April 2006.

Diagnosis. Adult male: 10th trunk limb: 8–10 ( PM 9.2 ) anterior meshwork spines on 3rd endite, 9–14 ( PM 10.5 ) submarginal spines on 4th endite; 2nd trunk limb: proportional endopodite length 69.8–80.5% ( PM 74.0%; standardized values), proportional maximum length of spines on 5th endite 3.7–6.2% ( PM 4.8 %; standardized values); telson length ratio 0.38–0.51 ( PM 0.43), furcal spine width / telson width 0.13–0.19 ( PM 0.16), length of telson posterior incision / telson width 0.063 –0.104 ( PM 0.084); apodous abdominal segments 6.2–7.5 ( PM 6.8 ). Adult female: 10th trunk limb: 9–12 ( PM 11.4 ) anterior meshwork spines on 3rd endite, 10–14 ( PM 12.2 ) submarginal spines on 4th endite; telson length ratio 0.36–0.49 ( PM 0.42), furcal spine width / telson width 0.14–0.21 ( PM 0.17), length of telson posterior incision / telson width 0.58–0.119 ( PM 0.086); apodous abdominal segments 5.5–6.4 ( PM 6.0). Resting egg: diameter up to 593 μm ( PM 553 μm) .

Description of holotype. Adult male, body rings 32; total number of trunk limbs 55; 10th trunk limb: 10 anterior meshwork spines on 3rd endite, 10 submarginal spines on 4th endite; 2nd trunk limb: length of endopodite 2,660 μm, length of 5th endite 4,342 μm, longest spine on 5th endite 110 μm; length of carapace 19.85 mm, 35 dorsal carina spines, sulcus with 33 spines, length of nuchal organ 0.69 mm; 2nd maxilla well developed, with long terminal setae; telson width 2.51 mm, telson length ratio 0.45, furcal spine size ratio 1.74, posterior marginal spines short, 2 median spines; 4 furcal spines on both sides, main spine only slightly bigger than following spine; apodous abdominal segments 6.6.

Range. Extremadura, Guadiana valley , recorded in two ponds near La Albuera .

Figures

Fig. 10 Triops emeritensis n. sp., adult male (holotype). a Distal part of 2nd trunk limb. b Telson, dorsal view. c Proximal region of 3rd endite of 10th trunk limb, anterior view; meshwork spines and associated row of spinules shown in black, submarginal spines and edge of endite in grey