Cebrennus atlas, Jäger, Peter, 2014

Jäger, Peter, 2014, Cebrennus Simon, 1880 (Araneae: Sparassidae): a revisionary up-date with the description of four new species and an updated identification key for all species, Zootaxa 3790 (2), pp. 319-356 : 324

publication ID	https://doi.org/ 10.11646/zootaxa.3790.2.4
publication LSID	lsid:zoobank.org:pub:BDA1931C-FEDB-4142-8A63-2765593621A9
DOI	https://doi.org/10.5281/zenodo.6124547
persistent identifier	https://treatment.plazi.org/id/03DA87EF-FFA6-3977-FF69-FF79850A186F
treatment provided by	Plazi
scientific name	Cebrennus atlas
status	sp. nov.

Treatment

Cebrennus atlas View in CoL spec. nov.

Figs 7–11 View FIGURES 1 – 11. 1 – 6 , 94–96 View FIGURES 88 – 100 , 173 View FIGURE 173

Type material. MOROCCO: Marrakesh-Tensift-El Haouz: Holotype female (PJ 3403), Atlas , ca. 15 km N of pass Tizi N'Test, under stone with egg sac, S. Huber leg. 24 July 2000 ( SMF).

Diagnosis. Medium-sized Sparassinae, body length of female: 12.8. Copulatory organ similar to that of C. powelli Fage, 1921 in having the median septum wider than long and the general bauplan of the vulva ( Figs 7–9 View FIGURES 1 – 11. 1 – 6 ). It is distinguished by the distinct transverse rim halfway between copulatory openings and epigastral furrow (at level of and between copulatory openings in C. powelli ), epigynal ledges anterior of copulatory openings (situated laterally in C. powelli ), sclerotized (posterior) part of internal duct system roughly as long as wide (ca. twice as wide as long in C. powelli ), diameter of glandular appendages larger than half diameter of copulatory duct (smaller in C. powelli ).

Etymology. The specific name is derived from the type locality; noun in apposition.

Description. Female: PL 6.1, PW 5.8, AW 4.6, OL 6.7, OW 3.7. AME 0.40, ALE 0.32, PME 0.26, PLE 0.28, AME–AME 0.27, AME–ALE 0.33, PME–PME 0.55, PME–PLE 1.12, AME–PME 0.40, ALE–PLE 1.05, clypeus AME 0.25, clypeus ALE 0.21 ( Fig. 10 View FIGURES 1 – 11. 1 – 6 ). Spination: Palp: 0 20, 0 0 0, 1000, 1000; legs: femur I–II 323, III–IV 321; patella 000; tibia I–IV 2024; metatarsus I–III 2024, IV 3036. Ventral metatarsi I–IV with scopula in distal half, without spines or bristles distally. Leg formula: 2413. Measurements of palp and legs: Palp 7.1 (2.3, 1.0, 1.3, -, 2.5), leg I 22.7 (6.5, 2.9, 5.8, 6.0, 1.5), leg II 25.6 (7.5, 3.0, 6.5, 6.8, 1.8), leg III 19.5 (6.0, 2.4, 4.7, 4.8, 1.6), leg IV 23.0 (7.1, 2.5, 5.5, 6.3, 1.6). Cheliceral furrow with 2 anterior and 6 adnate posterior teeth, without denticles ( Fig. 11 View FIGURES 1 – 11. 1 – 6 ). Margin of chelicerae close to fang base with 2(3) bristles. Palpal claw with ca. 12 teeth.

Copulatory organ as in diagnosis ( Figs 7–9 View FIGURES 1 – 11. 1 – 6 ). Epigynal field wider than long, without anterior bands, with one slit sensillum on each side integrated within epigynal field. Membranous parts of internal duct system (atria) developed as anteriorly situated sacs of different shapes. Sclerotised, posterior part wide, narrowing posteriorly, slightly twisted, posterior part bent at right angle. Fertilisation ducts flattened, parallel, anteriad.

Colouration in ethanol ( Figs 94–96 View FIGURES 88 – 100 ): Yellowish- to reddish-brown. Dorsal prosoma yellowish-brown with fovea and anterio-lateral margin darker. Sternum, ventral coxae and femora pale yellowish-brown. Gnathocoxae and labium reddish-brown with distinct proximal patch and light yellowish-brown distal lip. Chelicerae deep reddish-brown with 3 dark longitudinal bands frontally. Palp and legs yellowish-brown with distal segments darker. Opisthosoma shrunken with pattern badly recognisable: dorsally with indistinct median row of small patches, laterally spotted.

Male: unknown.

Distribution. Only known from the type locality ( Fig. 173 View FIGURE 173 ).