Zannicranaus, Kury, Adriano B., 2012

Kury, Adriano B., 2012, A new genus of Cranaidae from Ecuador (Opiliones: Laniatores), Zootaxa 3314, pp. 31-44 : 32

publication ID

https://doi.org/ 10.5281/zenodo.281089

DOI

https://doi.org/10.5281/zenodo.5697370

persistent identifier

https://treatment.plazi.org/id/03CE87D3-7D7A-FFE8-FF1D-FC69FD25F96F

treatment provided by

Plazi

scientific name

Zannicranaus
status

gen. nov.

Zannicranaus View in CoL new genus

Etymology. From Zanni, one of the masquerade stereotypes of Italian Commedia dell’arte, notable for having a big nose (which strongly resembles the spine in frontal hump which characterizes the genus) + pre-existing generic name Cranaus . Gender masculine.

Diagnosis. Outline of dorsal scutum in dorsal view guitar-shaped (widest part clearly displaced posteriorly) either with ( Z. morlacus , Fig. 23 View FIGURES 21 – 23 ) or without defined coda ( Z. monoclonius , Fig. 3 View FIGURES 1 – 3 ). Frontal hump of carapace with huge spine bent frontwards ( Figs. 2 View FIGURES 1 – 3 , 22 View FIGURES 21 – 23 ). Cheliceral bulla of male with mid-posterior dorsal erect spine ( Figs. 2 View FIGURES 1 – 3 , 22 View FIGURES 21 – 23 ). Tibia-tarsus of pedipalpus rotated ectally ( Figs. 11 View FIGURES 11 – 13 , 30 View FIGURES 30 – 32 ); femur-tibia with dorsal rounded tubercles ( Figs. 7–8 View FIGURES 7 – 10 , 13 View FIGURES 11 – 13 , 26–27 View FIGURES 26 – 29 , 32 View FIGURES 30 – 32 ). Femur with dorso-apical short spine ( Figs. 8 View FIGURES 7 – 10 , 27 View FIGURES 26 – 29 ), none of pedipalpal articles specially elongate. Male calcaneus I twice as long as astragalus and thickened. Coxa IV of male with pair of ventro-distal paramedian acuminate tubercles ( Figs. 2 View FIGURES 1 – 3 , 22 View FIGURES 21 – 23 ). Femur IV of male from substraight ( Fig. 21 View FIGURES 21 – 23 ) to slightly sinuous ( Fig. 1 View FIGURES 1 – 3 ) and with few weak spines. Tarsi III–IV with weak scopula, tarsal claws unpectinated. Tarsal counts, male: 7(3)/12-16(3)/7-9/ 8-9, female: 6(3)/13(3)/8/9. Truncus penis either straight ( Z. morlacus , Fig. 33 View FIGURES 33 – 38 ) or clearly angled ( Z. monoclonius , Fig. 14 View FIGURES 14 – 20 ). Ventral plate of penis strongly angled against truncus ( Figs. 14 View FIGURES 14 – 20 , 33 View FIGURES 33 – 38 ), with wide and shallow V-cleft ( Figs. 15–16 View FIGURES 14 – 20 , 34–35 View FIGURES 33 – 38 ), either guitar-shaped ( Z. monoclonius , Fig. 15 View FIGURES 14 – 20 ) or subrectangular ( Z. morlacus , Fig. 34 View FIGURES 33 – 38 ), and with two lateral patches of scale-setae on ventral surface ( Figs. 15 View FIGURES 14 – 20 , 34 View FIGURES 33 – 38 ). Glans sac very long, fanfold, with small conical dorsal process ( Figs. 14, 16 View FIGURES 14 – 20 , 33, 38 View FIGURES 33 – 38 ). Stylus either straight, growing thinner distally ( Z. monoclonius , Fig. 20 View FIGURES 14 – 20 ) or uniformly thin, sinuous ( Z. morlacus , Fig. 38 View FIGURES 33 – 38 ). Stylus head either simple, elongate-erythrocyte-shaped ( Z. morlacus , Figs. 36–37 View FIGURES 33 – 38 ) or complex, with 2 stylar distally-villose caps ( Z. monoclonius ): dorsal horseshoe-shaped ( Figs. 19–20 View FIGURES 14 – 20 ) and ventral elongate tapering foliaceous ( Figs. 17–18, 20 View FIGURES 14 – 20 ). Sexual dimorphism evident in shape of carapace and basichelicerite (compare Figs. 3 View FIGURES 1 – 3 and 6 View FIGURES 4 – 6 ), much stronger in male (females known only for Z. monoclonius ).

Type species. Zannicranaus monoclonius sp. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Cranaidae

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