Journal of Conchology | Year: 2011
In the last quarter of a century, two different specific names have been used in the scientific literature to indicate the same sepioline species, that is Sepietta obscura Naef 1916 and Sepietta petersi (Steenstrup 1887). The original description of the latter binomen was reviewed, as well as other relevant literature, and S. petersii iuas shown to be an invalid nominal species according to the rules of the International Code of Zoological Nomenclature. The nomenclatural revision of the genus Sepietta and the species contained in it was also carried out.
Bello G.,Arion |
Causse R.,French Natural History Museum |
Lipej L.,Slovenian National Institute of Biology |
Dulcic J.,Croatian Institute Of Oceanography And Fisheries
Cybium | Year: 2014
We propose here a best practice protocol to be followed by prospective authors of first record notes; it was prompted by the publication in scientific journals of several erroneous "first records". This includes accurate checking of available regional fish diversity catalogues; designation and deposit of voucher specimen(s) in curated collections with proper information; inclusion of photograph(s), meristic and morphometric characters, and, whenever possible, DNA sequences (Barcoding) of the specimen(s). Examples are taken from the Mediterranean Sea. The responsibility of both scientific editors and reviewers in the publication process of first records is also discussed.
Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen | Year: 2012
The holopelagic mode of life in the superfamily Argonautoidea was achieved thanks to the evolution of peculiar characters, mainly relating to neutral buoyancy and egg brooding away from the sea floor. Some of these adaptations - egg-carrying structures in females of Tremoctopus and Argonauta, ovoviviparity in Ocythoe, swimbladder in females of Tremoctopus, Haliphron and Ocythoe, buoyancy regulating egg-case in female Argonauta - are indeed exaptations, i.e. either characters previously shaped by natural selection for particular functions (adaptations) or characters whose origin cannot be ascribed to the direct action of natural selection (nonaptations) that are coopted for new uses. Other exaptations are the pouch holding the coiled long hectocotylus in the males of all argonautoid genera and the autotomizing dorsal arms and adjoining pieces of web for defensive purposes in female Tremoctopus. © 2012 E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany.
Jereb P.,Italian National Institute for Environmental Protection and Research |
Cannas R.,University of Cagliari |
Maiorano P.,University of Bari |
Bello G.,Arion |
And 16 more authors.
Marine Biology | Year: 2016
The genus Octopoteuthis includes squids inhabiting meso- and bathypelagic waters worldwide. Of the seven presently named species distributed in the world’s oceans, only Octopoteuthis sicula has been reported for certain in the Mediterranean Sea to date. However, mixed and confusing descriptions of the systematic characters useful for identifying the species occur in the literature. Similarly, molecular analysis results available for the genus are contradictory and inconsistent. The research herein was undertaken firstly to clarify the systematic status of the genus in the Mediterranean Sea and confirm the presence of a single species, namely O. sicula. Additional goals were the assessment of the validity of systematic characters to identify the species and the analysis of beak morphology to provide useful tools in prey–predator relationship studies. Octopoteuthis specimens from various areas of the Mediterranean Sea and the Atlantic and Pacific oceans were compared, and the analysis of traditional morphological characters was combined with molecular genetics and the study of beaks. Molecular genetics and beak morphology results support the existence of a single species in the Mediterranean Sea. Additional evidence would suggest that this species is also distributed in the north-eastern Atlantic. The morphological characters reported in the literature to identify O. sicula did not identify Mediterranean specimens, with the exception of the two tail photophores. All information collected supports the need for a reconsideration of morphological characters used to identify Octopoteuthis species. © 2016, Springer-Verlag Berlin Heidelberg.
Description of a new sepioline species, sepiola bursadhaesa n. sp. (Cephalopoda: Sepiolidae), from the catalan sea, with remarks and identification key for the Sepiola atlantica group [Descripción dDe una nueva especie de sepílido, Sepiola bursSadhaesSa n. sp. (Cephalopoda: SepiolidDae) del Mar Ccatalán, con comentarios y clave identificación para el grupo Sepiola atlantica]
Scientia Marina | Year: 2013
Diversity among members of the genus Sepiola (Cephalopoda: Sepiolidae) in the NE Atlantic-Mediterranean area is fairly high; 10 species have been recorded. In this paper, a new species, Sepiola bursadhaesa n. sp., is described based on ten specimens from the Catalan Sea. They are lodged in the Museo Nacional de Ciencias Naturales of Madrid. The new species is compared with the closely related species Sepiola affinis Naef, 1912 and Sepiola intermedia Naef, 1912, the latter of which is possibly its sister species. Male Sepiola bursadhaesa n. sp. differs from Sepiola intermedia in having a very wrinkled and outward projecting tubercle on the copulatory apparatus, and the first three (rather than two) suckers of the dorsal row of the distal part of the hectocotylus enlarged. The middle sucker of the three suckers is the largest. In female S. bursadhaesa n. sp., unlike all other species in the genus, the bursa copulatrix is fused throughout its posterior rim to the inner side of the mantle. The relationships between the species of the Sepiola atlantica group sensu Naef (1923), to which S. bursadhaesa n. sp. belongs, are described. An identification key for this group is provided. 10.3989/scimar.03720.31A.
Dance M.A.,Texas A&M University |
Bello G.,Arion |
Furey N.B.,Texas A&M University |
Furey N.B.,University of British Columbia |
Rooker J.R.,Texas A&M University
Marine Biology | Year: 2014
Stable carbon (δ13C) and oxygen (δ18O) isotopes in cuttlebones of three species of Mediterranean cuttlefish (Sepia elegans, S. officinalis, and S. orbignyana) with different life histories were contrasted. Cuttlebone δ13C and δ18O were quantified at both the core and edge (representing early life and recent deposition, respectively) for all three species sampled from the southern Adriatic Sea in 2010 (n = 28). For S. officinalis, cuttlebone δ13C and δ18O values were both lower relative to S. elegans and S. orbignyana at the core by approximately 1.0-2.0 and 3.0 ‰, respectively. Differences between core and edge in cuttlebone δ13C and δ18O were also observed for S. officinalis with observed values at the cuttlebone edge (recent) exceeding core (early life) values by 2.5 ‰ for δ13C and 1.4 ‰ for δ18O. Differences in isotopic composition across S. officinalis cuttlebones are possibly reflective of ontogenetic migrations from nearshore nurseries (lower seawater δ13C and δ18O values) to offshore overwintering habitats (higher seawater δ13C and δ18O values). Overall, results from this study suggest that cuttlebone δ13C and δ18O hold promise as natural tags for determining the degree of spatial connectivity between nearshore and offshore environments used by cuttlefish. © 2013 Springer-Verlag Berlin Heidelberg.