Postaphanostoma nilssoni Kånneby & Jondelius, 2013
- GBIF Backbone Taxonomy
- Published in
- Kånneby, T.; Jondelius, U. Four new species of Acoela from Chile. Zootaxa. 3736(5): 471-485. (2013).
- Postaphanostoma nilssoni
Diagnosis and taxonomic remarks: Postaphanostoma nilssoni n. sp. can be separated from all other species within the genus based on its large body size. The following morphological characters identifies the new species as a member of Postaphanostoma: (i) a well developed frontal organ with numerous frontal glands; (ii) small poorly developed rhabdoid glands; (iii) seminal vesicle absent; (iv) the male copulatory organ is an invaginated continuation of the epidermis and (v) sperm are collected in false seminal vesicles (Dörjes 1968). The maximum likelihood analysis of the concatenated 18 S, 28 S and COI sequences shows a sister group relationship between P. nilssoni and P. glandulosum Dörjes, 1968 (Fig. 8). However, P. glandulosum is the only other species within the genus for which we currently have sequences available.
Etymology: This species is named in honor of Karin Sara Nilsson who helped collecting the material.
Type Material: Holotype — SMNH Type- 8464 (sagittal sections); Paratype — SMNH Type- 8465 (longitudinal sections); Paratype — SMNH Type- 8466 (sagittal sections). Type Locality: Rock pool by Estación Costera de Investigaciones Marinas (ECIM), Las Cruces, Chile (33 ° 30 ' 10.548 " S, 71 ° 37 ' 54.012 " W), intertidal in shell gravel. Other Material Examined: Whole mounts of living specimens.
- Kånneby, T.; Jondelius, U. (2013). Four new species of Acoela from Chile. <em>Zootaxa.</em> 3736(5): 471-485.
- Tyler, S.; Schilling, S.; Hooge, M.; Bush, L. F. (comp.). (2006-2016). Turbellarian taxonomic database. Version 1.7.