Stylocellus sumatranus Westwood, 1874, Westwood, 1874

Clouse, Ronald M., 2012, The lineages of Stylocellidae (Arachnida: Opiliones: Cyphophthalmi), Zootaxa 3595 (1), pp. 1-34: 8

publication ID

http://doi.org/ 10.11646/zootaxa.3595.1.1

publication LSID

lsid:zoobank.org:pub:0E34F9DE-B76C-4197-94D0-5A08A1F7C534

DOI

http://doi.org/10.5281/zenodo.5622718

persistent identifier

http://treatment.plazi.org/id/296DA64C-7060-997E-DEAA-FA6FAF5CF847

treatment provided by

Plazi

scientific name

Stylocellus sumatranus Westwood, 1874
status

 

Stylocellus sumatranus Westwood, 1874  

( Fig. 1 View FIGURE 1 )

Stylocellus sumatranus Westwood, 1874: 200   , Plate XXXVII, figs. 7, 7a, 7 b. See complete synonymy in Giribet 2000: 68.

Comments: Along with the widening of the prosoma, the pinning of S. sumatranus   may have also caused the ozophores to point perpendicular to the long body axis (Hansen and Sørensen draw them pointing anteriorally, Fig. 1 View FIGURE 1 B), as well as the dorsal scutum to appear less arched than S. lornei   , sp. nov. Likewise, desiccation of the specimen may have caused the sternal sulci to become more pronounced. Still, the sulci have the same sinusoidal appearance, the ozophores have the same shape, and these features, combined with the anal gland pore, cheliceral sculpturing, and overall body proportions, make the species extremely similar. In fact, this raises the question of whether S. sumatranus   and S. lornei   , sp. nov., are the same species (unlikely given the biogeography of Cyphophthalmi   , but mix-ups in labels and locality identifications among early specimens could have happened). Three features of S. sumatranus   clearly distinguish it from S. lornei   : the lack of any evidence of a groove in the middle of the smooth strip on the anal plate, the lack of pronounced dorsal opisthosomal sulci, and the fact that its spiracles are completely free of the fourth coxae, not overlapped.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Stylocellidae

Genus

Stylocellus

Loc

Stylocellus sumatranus Westwood, 1874

Clouse, Ronald M. 2012
2012
Loc

Stylocellus sumatranus

Giribet 2000: 68
Westwood 1874: 200
1874