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

http://dx.doi.org/10.11646/zootaxa.3790.2.4

publication LSID

lsid:zoobank.org:pub:BDA1931C-FEDB-4142-8A63-2765593621A9

persistent identifier

http://treatment.plazi.org/id/03DA87EF-FFA6-3977-FF69-FF79850A186F

treatment provided by

Plazi

scientific name

Cebrennus atlas
status

spec. nov.

Cebrennus atlas  spec. nov.

Figs 7 –11View FIGURES 1 – 11. 1 – 6, 94– 96View FIGURES 88 – 100, 173View 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 7–9View 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. 10View 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. 11View 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 7–9View 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 94–96View 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. 173View FIGURE 173).

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Cebrennus