scholarly journals A new species of Munida Leach, 1820 (Crustacea: Decapoda: Anomura: Munididae) from seamounts of the Nazca-Desventuradas Marine Park

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10531
Author(s):  
María de los Ángeles Gallardo Salamanca ◽  
Enrique Macpherson ◽  
Jan M. Tapia Guerra ◽  
Cynthia M. Asorey ◽  
Javier Sellanes
Keyword(s):  
New Species ◽  
Benthic Fauna ◽  
French Polynesia ◽  
Marine Conservation ◽  
West Pacific Ocean ◽  
Marine Park ◽  
In Situ Observations ◽  
The West Pacific Ocean ◽  
A New Species

Munida diritas sp. nov. is described for the seamounts near Desventuradas Islands, in the intersection of the Salas & Gómez and Nazca Ridges, Chile. Specimens of the new species were collected in the summit (∼200 m depth) of one seamount and observed by ROV at two nearby ones. This species is characterized by the presence of distinct carinae on the thoracic sternites 6 and 7. Furthermore, it is not related with any species from the continental shelf nor the slope of America, while it is closely related to species of Munida from French Polynesia and the West-Pacific Ocean (i.e., M. ommata, M. psylla and M. rufiantennulata). In situ observations indicate that the species lives among the tentacles of ceriantarid anemones and preys on small crustaceans. The discovery of this new species adds to the knowledge of the highly endemic benthic fauna of seamounts of the newly created Nazca-Desventuradas Marine Park, emphasizing the relevance of this area for marine conservation.

scholarly journals A new species of pygmy Paroctopus (Cephalopoda: Octopodidae): the smallest southwestern Atlantic octopod, found in sea debris

2021 ◽  
Author(s):  
Tatiana S. Leite ◽  
Erica A.G. Vidal ◽  
Françoise Dantas Lima ◽  
Sergio M.Q. Lima ◽  
Ricardo M Dias ◽  
...  
Keyword(s):  
New Species ◽  
Western Atlantic ◽  
Bayesian Phylogenetic Analysis ◽  
History Of ◽  
Novel Habitat ◽  
In Situ Observations ◽  
Males And Females ◽  
The Relationship ◽  
A New Species

Abstract The new species, Paroctopus cthulu sp. nov. Leite, Haimovici, Lima and Lima, was recorded from very shallow coastal waters on sandy/muddy and shelter-poor bottoms with natural and human-origin debris. It is a small octopus, adults are less than 35 mm mantle length (ML) and weigh around 15 g. It has short to medium sized arms, enlarged suckers on the arms of both males and females, large posterior salivary glands (25 %ML), a relatively large beak (9 % ML) and medium to large mature eggs (3.5 to > 9 mm). The characteristics of hatchlings of two brooding females, some of their anatomical features, and in-situ observations of their behaviour are a clue to the life history of it and closely related pygmy octopuses. The Bayesian phylogenetic analysis showed that Paroctopus cthulu sp.nov. specimens grouped in a well-supported clade of Paroctopus species, separate from P.joubini and P. cf mercatoris from the Northwestern Atlantic . The description of this new species, living in a novel habitat of human debris in shallow water off Brazil, offered an opportunity not only to evaluate the relationship among the small octopuses of the western Atlantic, Caribbean and eastern Pacific, but also their adaptation to the Anthropocene period.

A new stalked species of Polycarpa (Tunicata : Ascidiacea) from deeper waters of the tropical Western Pacific and in situ observations on sympatric species

Zootaxa ◽  
2008 ◽  
Vol 1744 (1) ◽  
pp. 41 ◽  
Author(s):  
KAREN SANAMYAN ◽  
KAREN HISSMANN
Keyword(s):  
New Species ◽  
Sympatric Species ◽  
The Philippines ◽  
The Body ◽  
Western Pacific ◽  
Tropical Western Pacific ◽  
Manned Submersible ◽  
In Situ Observations ◽  
A New Species

A new species of a stalked ascidian (genus Polycarpa, family Styelidae) is described from living and preserved material. Living specimens of the new and some sympatric species were observed and photographed in situ and specimens of the former were collected by the manned submersible "JAGO" at depths between 200 and 277 m off Sangihe Island between Sulawesi (Indonesia) and the Philippines. Specimens display a number of adaptations known previously from a range of ascidian taxa recorded from deeper waters, including a stalk from the anterior end of the body, the loss of ciliated pharyngeal perforations and wide atrial apertures exposing extensive areas of the branchial sac.

scholarly journals Fishes of the hadal zone including new species, in situ observations and depth records of Liparidae

2016 ◽  
Vol 114 ◽  
pp. 99-110 ◽  
Author(s):  
Thomas D. Linley ◽  
Mackenzie E. Gerringer ◽  
Paul H. Yancey ◽  
Jeffrey C. Drazen ◽  
Chloe L. Weinstock ◽  
...  
Keyword(s):  
New Species ◽  
In Situ Observations ◽  
Hadal Zone

The missing link: Rhyncogonus Sharp in the Gambier Islands (Coleoptera, Curculionidae, Entiminae, Rhyncogonini)

Zootaxa ◽  
2021 ◽  
Vol 4908 (3) ◽  
pp. 409-416
Author(s):  
THIBAULT RAMAGE
Keyword(s):  
New Species ◽  
French Polynesia ◽  
Small Island ◽  
Missing Link ◽  
A New Species

The genus Rhyncogonus Sharp, 1885, is represented in French Polynesia by 65 species found in the Austral, Marquesas, Society and Tuamotu archipelagos. Hitherto unknown from the fifth archipelago of French Polynesia, the Gambier Islands, a new species of Rhyncogonus has been discovered by the botanist Jean-François Butaud on Motu Teiku, a small island never previously investigated for plants and insects. Rhyncogonus duhameli sp. nov. is here described and illustrated. 

Acanthella danerii sp. nov. (Demospongiae, Bubarida, Dictyonellidae) from Chilean fjords (South Pacific Ocean)

Zootaxa ◽  
2020 ◽  
Vol 4790 (2) ◽  
pp. 393-396 ◽  
Author(s):  
GABRIELE COSTA ◽  
GIORGIO BAVESTRELLO ◽  
MAURIZIO PANSINI ◽  
MARCO BERTOLINO
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Vertical Wall ◽  
Benthic Fauna ◽  
Scuba Diving ◽  
Marine Research ◽  
Wide Region ◽  
South Pacific Ocean ◽  
A New Species ◽  
Hard Substrates

The use of SCUBA diving for marine research in the Chilean fjords has increased the possibility of obtaining information on the sponge assemblages living in this environment. However, much work is still needed to achieve a satisfactory knowledge of the benthos of this wide region. As to sponges, just consider that seventeen new species have been recently described by several authors (Hajdu et al., 2013; Fernandez et al., 2016; Bertolino et al., 2019) with detailed information of this benthic fauna for this area. Aim of this work is the description of a new species of Acanthella (Dictyonellidae van Soest, Diaz & Pomponi, 1990), Acanthella danerii sp. nov.. It was collected at “Seno Magdalena” (44°61’48.63” S 72°95’83.12” W) (Chilean fjords) by SCUBA, at 20 m depth, on hard substrates of a vertical wall ending on a rocky bottom that slopes down to 32 m during a survey in August 2016. 

scholarly journals II.—On the Nomenclature of Saurocephalus lanciformis of the British Cretaceous Deposits: with Description of a New Species (S. Woodwardii)

1878 ◽  
Vol 5 (6) ◽  
pp. 254-261 ◽  
Author(s):  
William Davies
Keyword(s):  
New Jersey ◽  
New Species ◽  
The State ◽  
Microscopic Structure ◽  
Natural Size ◽  
Classical Work ◽  
A New Species ◽  
Louis Agassiz ◽  
Cretaceous Deposits

Dr. Mantell, in his classical work, the “Fossils of the South Downs,” figured two large compressed and lanciform teeth preserved in his collection and obtained from the Chalk at Lewes, as respectively the teeth, of an unknown fish and of a species of Squalus. Similar teeth, and from the same collection, were subsequently figured and described by Prof. Louis Agassiz, who, from external characters chiefly, considered them to have belonged to a Sphyrænoid fish, and he referred them to an American species founded by Dr. Harlan upon portions of jaws with teeth in situ found in a Cretaceous deposit in the State of New Jersey, but described by him as remains of a Saurian, and to which he gave the name of Saurocephalus lanciformis. At the time when Agassiz referred these teeth to Harlan's species, and determined their ichthyic character, he had not seen the American fossils; but he states that these conclusions were subsequently confirmed by Prof. Owen's description and drawings of the microscopic structure, and of teeth of the natural size of the Saurocephalus lanciformis, Harl., in his “Odontography,” p. 130, pl. 55. But Prof. Owen's researches were made upon a genuine tooth of the American fossil sent to him by Dr. Harlan, and not upon an English specimen.

A new species of Coelocarteria (Porifera: Demospongiae) from Sulawesi, Indonesia

2007 ◽  
Vol 87 (6) ◽  
pp. 1349-1353 ◽  
Author(s):  
Francesca Azzini ◽  
Barbara Calcinai ◽  
Maurizio Pansini
Keyword(s):  
New Species ◽  
The Other ◽  
Sponge Species ◽  
Congeneric Species ◽  
North Sulawesi ◽  
Marine Park ◽  
A New Species

A new sponge species Coelocarteria agglomerans sp. nov. (Isodictyidae: Mycalina: Poecilosclerida) is described from the reef slopes of Bunaken National Marine Park, North Sulawesi, Indonesia. The new species can be separated from the other two congeneric species: C. singaporensis and C. spatulosa by several characters concerning sponge surface, fistule shape, form and size of the spicules and habitat. In detail it differs from C. singaporensis in the presence of strongyles instead of oxeas as main megascleres and of spines in the shaft of palmate isochelae. It differs from C. spatulosa in the absence of characteristic fistules with spatula shaped hoods and in spicule size, because both categories of strongyles and palmate isochelae are remarkably larger in the latter.

A new species and a new record of alpheid shrimps of the genus Salmoneus Holthuis, 1955 (Crustacea: Decapoda: Alpheidae) from Iran

Zootaxa ◽  
2020 ◽  
Vol 4838 (4) ◽  
pp. 503-514
Author(s):  
HOSSEIN ASHRAFI ◽  
ZDENĚK ĎURIŠ ◽  
REZA NADERLOO
Keyword(s):  
New Species ◽  
Persian Gulf ◽  
Benthic Fauna ◽  
Species Group ◽  
Gulf Of Oman ◽  
Small Series ◽  
The Persian Gulf ◽  
One New Species ◽  
A New Species ◽  
Reddish Orange

Extensive samplings of benthic fauna along the Iranian coastlines of the Persian Gulf and Gulf of Oman during 2018–2019 resulted in a small series of shrimps of the alpheid genus Salmoneus. Based on a thorough examination of this material, as well as previously collected specimens, one new species, S. rashedi n. sp., is described, whilst a significant range extension of S. chadwickae Ďuriš & Horká, 2016 is reported. Salmoneus rashedi n. sp. is a member of S. gracilipes species group. The present new species differs from other species of the group by a longer rostrum with a short dorsal crest and a single ventral rostral tooth; the species occurs in two colour forms from yellow to reddish orange with some transverse red bands. 

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