Project 1066: M. Koch, G. D. Edgecombe. 2012. The preoral chamber in geophilomorph centipedes: comparative morphology, phylogeny, and the evolution of centipede feeding structures. Zoological Journal of the Linnean Society. 165 (1):1-62.
Abstract
Geophilomorpha differ from other Chilopoda with respect to feeding mechanisms, having an inferred prevalence of food intake by pharyngeal sucking, and all components of the preoral chamber, mandibles, and head endoskeleton are so modified that inferring homologies with other chilopods is a challenge. Light and scanning electron microscopic documentation of the epipharynx, hypopharynx, mandibles, tentorium, and pharynx in 26 species sampling ten families of Geophilomorpha adds 24 phylogenetically informative new characters to a published morphological dataset for phylogenetic analysis. The mandibular gnathal edge of Geophilomorpha is recognized as being composed of pectinate lamellae only, i.e. lacking a molar plate and true teeth; the sclerotized lamellae traditionally identified as dentate are a modified pectinate lamella. An inferred transformation of the gnathal edge within Adesmata involves a reduction in the number of pectinate lamellae and their re-arrangement from imbricate to continuously aligned along the edge. Geophilid mandibles maintain a single pectinate lamella, to which the armature of the former ventral margin of the gnathal lobe is added distally to envelop the hypopharynx. This distal prolongation of the gnathal edge and transformation of the hypopharnyx into a tapering cone contribute new support for the monophyly of Geophilidae under implied character weighting. The interpretation that geophilomorphs have an immobile tentorium is consistent with the anatomy of Adesmata, but tentorial muscles in Placodesmata suggest mobility. Sensilla arrangements on the epi- and hypopharynx provide new characters for a grouping of Oryidae, Himantariidae, Schendylidae, and Ballophilidae, although cladistic analysis with other morphological characters also places Gonibregmatidae within this clade.Read the article »
Project DOI: 10.7934/P1066, http://dx.doi.org/10.7934/P1066
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 2796 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 92 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 196 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:92/0 |
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MorphoBank Project 1066
MorphoBank Project 1066
- Creation Date:
05 November 2013 - Publication Date:
05 November 2013 - Project views: 43840
- Matrix downloads: 8
Authors' Institutions
- Natural History Museum, London
- Rheinische Friedrich-Wilhelms-Universität Bonn (University of Bonn)
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 32 | 1 | 1 | 92 | 0 | 0 | 2796 (2691, 0, 105) | 0 | 0 | 0 | ||||
Maureen Admin Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Greg Edgecombe Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M2342' (32 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Lithobius forficatus Last Modified in 12/05/13 | 2 | 83 | 83 | 0 | 7 | 0 | 0 | 3 |
[2] Henicops washpoolensis Last Modified in 12/05/13 | 2 | 83 | 83 | 0 | 7 | 0 | 0 | 3 |
[3] Craterostigmus tasmanianus Last Modified in 12/05/13 | 9 | 76 | 76 | 0 | 7 | 0 | 0 | 3 |
[4] Cryptops hortensis Last Modified in 12/05/13 | 2 | 82 | 82 | 0 | 8 | 0 | 0 | 3 |
[5] Scolopocryptops ferrugineus Last Modified in 12/05/13 | 2 | 81 | 81 | 0 | 9 | 0 | 0 | 3 |
[6] Scolopendra cingulata Last Modified in 12/05/13 | 2 | 81 | 81 | 0 | 9 | 0 | 0 | 3 |
[7] Aphilodon weberi Last Modified in 12/05/13 | 8 | 76 | 76 | 0 | 8 | 0 | 0 | 3 |
[8] Arrup kyushuensis Last Modified in 12/05/13 | 6 | 82 | 82 | 0 | 4 | 0 | 0 | 3 |
[9] Ballophilus rouxi Last Modified in 12/05/13 | 7 | 84 | 84 | 0 | 1 | 0 | 0 | 3 |
[10] Bothriogaster signata Last Modified in 12/05/13 | 6 | 86 | 86 | 0 | 0 | 0 | 0 | 3 |
[11] Clinopodes flavidus Last Modified in 12/05/13 | 6 | 85 | 85 | 0 | 1 | 0 | 0 | 3 |
[12] Dicellophilus carniolensis Last Modified in 12/05/13 | 4 | 85 | 85 | 0 | 3 | 0 | 0 | 3 |
[13] Dignathodon microcephalus Last Modified in 12/05/13 | 3 | 85 | 85 | 0 | 4 | 0 | 0 | 3 |
[14] Eucratonyx meinerti Last Modified in 12/05/13 | 7 | 84 | 84 | 0 | 1 | 0 | 0 | 3 |
[15] Geophilus carpophagus Last Modified in 12/05/13 | 1 | 89 | 89 | 0 | 2 | 0 | 0 | 3 |
[16] Gonibregmatus anguinus Last Modified in 12/05/13 | 6 | 84 | 84 | 0 | 2 | 0 | 0 | 3 |
[17] Haplophilus subterraneus Last Modified in 12/05/13 | 3 | 89 | 89 | 0 | 0 | 0 | 0 | 3 |
[18] Henia vesuviana Last Modified in 12/05/13 | 1 | 89 | 89 | 0 | 2 | 0 | 0 | 3 |
[19] Himantarium gabrielis Last Modified in 12/05/13 | 3 | 89 | 89 | 0 | 0 | 0 | 0 | 3 |
[20] Hydroschendyla submarina Last Modified in 12/05/13 | 4 | 87 | 87 | 0 | 1 | 0 | 0 | 3 |
[21] Mecistocephalus tahitiensis Last Modified in 12/05/13 | 6 | 82 | 82 | 0 | 4 | 0 | 0 | 3 |
[22] Notiphilides maximiliani Last Modified in 12/05/13 | 4 | 85 | 85 | 0 | 3 | 0 | 0 | 3 |
[23] Orphnaeus brevilabiatus Last Modified in 12/05/13 | 4 | 85 | 85 | 0 | 3 | 0 | 0 | 3 |
[24] Orya almohadensis Last Modified in 12/05/13 | 3 | 86 | 86 | 0 | 3 | 0 | 0 | 3 |
[25] Pachymerium ferrugineum Last Modified in 12/05/13 | 2 | 88 | 88 | 0 | 2 | 0 | 0 | 3 |
[26] Pectiniunguis argentinensis Last Modified in 12/05/13 | 8 | 83 | 83 | 0 | 1 | 0 | 0 | 3 |
[27] Plesioschendyla confossa Last Modified in 12/05/13 | 11 | 80 | 80 | 0 | 1 | 0 | 0 | 3 |
[28] Ribautia repanda Last Modified in 12/05/13 | 6 | 84 | 84 | 0 | 2 | 0 | 0 | 3 |
[29] Steneurytion antipodum Last Modified in 12/05/13 | 5 | 85 | 85 | 0 | 2 | 0 | 0 | 3 |
[30] Strigamia maritima Last Modified in 12/05/13 | 4 | 86 | 86 | 0 | 2 | 0 | 0 | 3 |
[31] Tygarrup diversidens Last Modified in 12/05/13 | 8 | 80 | 80 | 0 | 4 | 0 | 0 | 3 |
[32] Zelanophilus provocator Last Modified in 12/05/13 | 3 | 87 | 87 | 0 | 2 | 0 | 0 | 3 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 43840 | |
Project overview | 4351 | |
Matrix views | 2947 | Matrix landing page (2622 views); Koch and Edgecombe 2012 matrix (325 views); |
Media views | 7037 | Media search (6012 views); M309513 (1025 views); |
Taxon list | 20499 | |
Views for media list | 2004 | |
Specimen list | 3367 | |
Bibliography | 1387 | |
Documents list | 2248 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 369 | |
Project downloads | 361 | |
Matrix downloads | 8 | Koch and Edgecombe 2012 matrix (8 downloads); |