WoRMS source details
Hernández-Alcántara, P.; Solís-Weiss, V. (2014). Anatomical and morphometric analysis of a new species of Leitoscoloplos (Annelida: Orbiniidae) with numerous stomach papillae, from the Gulf of California, Eastern Pacific. Contributions to Zoology. 83 (2): 133-150.
196904
Hernández-Alcántara, P.; Solís-Weiss, V.
2014
Anatomical and morphometric analysis of a new species of <i>Leitoscoloplos</i> (Annelida: Orbiniidae) with numerous stomach papillae, from the Gulf of California, Eastern Pacific
Contributions to Zoology
83 (2): 133-150
Publication
The morphological and morphometric analyses of 88 orbiniids from the continental shelf of the Gulf of California lacking thoracic neuropodial hooks confirmed that a new species, Leitoscoloplos multipapillatus, described herein, is present along with Leitoscoloplos panamensis (Monro, 1933), already recorded there. The new species is closely related to L. panamensis, but can be clearly separated from this, and all other species of Leitoscoloplos, by the unique presence of up to 14 stomach papillae per chaetiger. A third taxon was identified, Leitoscoloplos sp., which is morphologically indistinguishable from L. panamensis, except for the presence of 1-2 stomach papillae on 1-2 segments, a feature that although important was not considered significant enough to erect a new species. Morphometric analyses between the closely related species, L. panamensis (including its type material) and L. multipapillatus sp. nov., in addition to Leitoscoloplos sp., were used to verify the new species. The generic diagnosis is emended to include species with numerous stomach papillae. Anatomical examination of these species was carried out with SEM to illustrate their characteristic features and corroborate the presence of capillary chaetae only along the thorax of the analysed specimens, as well as the unusual occurrence of stomach papillae.
California quadrant
Morphology
Morphometry, Form analysis
Systematics, Taxonomy
Morphometry, Form analysis
Systematics, Taxonomy
Date
action
by
Leitoscoloplos multipapillatus Hernández-Alcántara & Solís-Weiss, 2014 (original description)
Leitoscoloplos panamensis (Monro, 1933) (redescription)
Leitoscoloplos panamensis (Monro, 1933) (redescription)
Gulf of California for Leitoscoloplos panamensis (Monro, 1933)
Paratype NHMUK ANEA 2014.324.38, geounit Gulf of California, identified as Leitoscoloplos multipapillatus Hernández-Alcántara & Solís-Weiss, 2014
Holotype ICML-UNAM POH-01-001, geounit Gulf of California, identified as Leitoscoloplos multipapillatus Hernández-Alcántara & Solís-Weiss, 2014
Paratype ICML-UNAM POP-01-001, geounit Gulf of California, identified as Leitoscoloplos multipapillatus Hernández-Alcántara & Solís-Weiss, 2014
Holotype ICML-UNAM POH-01-001, geounit Gulf of California, identified as Leitoscoloplos multipapillatus Hernández-Alcántara & Solís-Weiss, 2014
Paratype ICML-UNAM POP-01-001, geounit Gulf of California, identified as Leitoscoloplos multipapillatus Hernández-Alcántara & Solís-Weiss, 2014
Depth range
9-54 m. [details]
Distribution
Eastern coasts of the Gulf of California; Pacific coast of Costa Rica. [details]
Distribution
Pacific coast of Panama: Taboga and Taboguilla Islands. Pacific coast of Costa Rica: Gulf of Nicoya and Bahía ... [details]
Etymology
The specific epithet multipapillatus refers to the presence of numerous stomach papillae, which clearly separates ... [details]
Habitat
On fine sand and muddy sand located between 9-54 m; temperature: 16.8 to 30.3ºC; salinity: 34.2 to 36 psu; 3 to 5.4 ... [details]
Habitat
On sand, fine sand, muddy sand, mud, and among mangrove roots; temperature 14.1 to 32ºC; salinity 34.2 to 35.9 psu; ... [details]
Type locality
NE Gulf of California, Mexico, Tepoca Cape (30º12.4'N, 112º47.2'W). [details]