• Corpus ID: 89164582

Electrolux addisoni, a new genus and species of electric ray from the east coast of South Africa (Rajiformes: Torpedinoidei: Narkidae), with a review of torpedinoid taxonomy

  title={Electrolux addisoni, a new genus and species of electric ray from the east coast of South Africa (Rajiformes: Torpedinoidei: Narkidae), with a review of torpedinoid taxonomy},
  author={Leonard J. V. Compagno and Phillip C. Heemstra},
A new genus and species of sleeper ray, Electrolux addisoni (Family Narkidae), with two dorsal fins is described from two adult males (total lengths 50 and 52 cm) caught on a shallow reef off the east coast of South Africa. Electrolux is distinguished from other genera of Narkidae by its prominent spiracular papillae, the morphology of its nostrils, nasal curtain, mouth, jaws, chondrocranium, basibranchial skeleton, pectoral and pelvic girdles, and unique and complex colour pattern. It has… 

Revision of Eocene electric rays (Torpediniformes, Batomorphii) from the Bolca Konservat-Lagerstätte, Italy, reveals the first fossil embryo in situ in marine batoids and provides new insights into the origin of trophic novelties in coral reef fishes

The analysis of the gut contents suggests that the dietary adaptations of †Titanonarke can be related, at least in part, to an opportunistic strategy in the context of abundant larger foraminifera in the Monte Postale palaeobiotope, suggesting that this kind of feeding mode, known to occur in present-day reefs, already was realized 50 million years ago.

Discopyge castelloi sp. nov. (Torpediniformes, Narcinidae), una nueva especie de raya eléctrica del Mar Argentino

A new species of electric ray of the family Narcinidae, Discopyge castelloi, is described from the southwestern Atlantic off Argentina, which appears to be very rare on the shelf, though the type locality is separated from that of the paratypes by seven latitude degrees.

Phylogenetic significance of clasper morphology of electric rays (Chondrichthyes: Batoidea: Torpediniformes)

The present article analyzes the external and skeletal clasper anatomy of electric rays and reports newly discovered characters that can be useful for taxonomic diagnoses and higher‐level systematic studies.

First record of valid species of torpedo electric ray, Torpedo polleni (Bleeker, 1865) (Torpediniformes: Torpedinidae) from Indian waters

A species of torpedo electric ray, Torpedo polleni (Bleeker, 1865) has been reported for the first time from Indian waters. Six specimens of T. polleni measuring 147-397 mm TL were collected from

The impacts of comparative anatomy of electric rays (Batoidea: Torpediniformes) on their systematic hypotheses

The Comparative anatomy of the 11 recognized genera within Torpediniformes is described, systematically categorized, and illustrated in a comprehensive photo‐atlas, with one notable exception: a monophyletic Narcininae was never recovered.

Taxonomy and length-weight relationship of torpedo electric rays of the genus Torpedo (Pisces: Torpedinidae) off Visakhapatnam coast of India

Torpedo electric rays are caught as bycatch in demersal fisheries including coastal artisanal fisheries in trammel nets and in trawls. At present, species under this group are assessed as ‘data

Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity.

  • S. Weigmann
  • Environmental Science
    Journal of fish biology
  • 2016
This checklist represents the first global checklist of chondrichthyans to include information on maximum size, geographic and depth distributions, as well as comments on taxonomically problematic species and recent and regularly overlooked synonymizations.

A Comparative Analysis of Feeding and Trophic Level Ecology in Stingrays (Rajiformes; Myliobatoidei) and Electric Rays (Rajiformes: Torpedinoidei)

Feeding strategies were identified as the primary factor of influence with respect to Myliobatoidei and Torpedinoidei T L estimates with inter-family comparisons providing the greatest insight into Mylio-Torpedinoid relationships.

Morphology and phylogenetic significance of the pelvic articular region in elasmobranchs (Chondrichthyes).

The phylogenetic significance of pelvic articular characters for elasmobranchs is discussed in light of the morphological variation observed in 130 species, the most comprehensive study exploring the morphology of the pelvic girdle done so far.

Validity of Heteronarce prabhui Talwar, 1981 and Narke impennis (Annandale, 1909) (Pisces: Narkidae) off Visakhapatnam, central-eastern coast of India

Sleeper rays of family Narkidae are represented in demersal shrimp trawl by-catches of Visakhapatnam in the central-eastern coast of India and are often misidentified in the catches due to several overlapping characters.



A new species of electric ray of the genus Narcine Henle, 1834 from the South-Western Indian Ocean (Chondrichthyes: Torpediniformes: Narcinidae)

A new species of electric ray of the genus Narcine Henle, 1834 described from seven specimens collected from two localities off the western coast of Madagascar, in the Moçambique Channel, which represents only the third described species of Narcine from the western Indian Ocean.

The taxonomy, biogeography, and biology of cow and frilled sharks (Chondrichthyes:Hexanchiformes)

Intraspecific variation of meristic counts were generally low for the Hexanchidae, but high for the Chlamydoselachidae, indicating that subpopulations, subspecies or even additional, new species exist within this family.

Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes)

The present volume reviews all 15 families, 25 genera and 57 species of living bullhead, mackerel and carpet sharks, including certain well-established but currently undescribed species mainly from Australia.

Sharks and Rays of Australia

An essential tool for conservation biologists trying to save threatened sharks, now under siege worldwide, this marvelous volume will also appeal to fish biologists, divers, naturalists, commercial and recreational fishermen, and anyone with an appreciation for these ancient evolutionary survivors.

Freshwater stingrays (Dasyatidae) of Southeast Asia and New Guinea, with description of a new species ofHimantura and reports of unidentified species

SynopsisThree species of dasyatid stingrays in Southeast Asia are presumed to be endemic freshwater species or are known only from freshwater habitats:Himantura krempfi (Chabanaud, 1923), known


The paper gives an overview of known diversity of cartilaginous fishes in the area and discusses their classification, distribution, habitats and ecomorphotypes, and discusses future directions for research.

Sharks of the Order Carcharhiniformes

This work is one of the most comprehensive modern anatomical and phylogenetic studies on cartilaginous fishes available and will become an essential reference not only for researchers on carcharhinoids but also for those who study other families of sharks and for paleontologists interested in this ancient group of fishes.

Heteronarce rierai, a new narkid ray from Mozambique, western Indian ocean

The new species, Heteronarce rierai sp.

Contributions to the Fauna of the Arabian Sea, with Descriptions of New Fishes and Crustacea

  • R. Lloyd
  • History, Environmental Science
    Records of the Zoological Survey of India
  • 1907
During the early part of 1906, the Indian Marine Survey Ship , Investigator' proceeded from Muscat to Aden along the south coast of Arabia and returned by the same route. On both passages the trawl

A field guide to the sharks of the world

Covering all aspects of these extraordinary creatures, from their behaviour, breeding, feeding and ecology, right through to the impact of humans on sharks throughout the world, this is one of the most important shark books ever written.