scholarly journals Hippocampus nalu, a new species of pygmy seahorse from South Africa, and the first record of a pygmy seahorse from the Indian Ocean (Teleostei, Syngnathidae)

ZooKeys ◽  
2020 ◽  
Vol 934 ◽  
pp. 141-156 ◽  
Author(s):  
Graham Short ◽  
Louw Claassens ◽  
Richard Smith ◽  
Maarten De Brauwer ◽  
Healy Hamilton ◽  
...  
Keyword(s):  
South Africa ◽  
New Species ◽  
Indian Ocean ◽  
First Record ◽  
Coi Gene ◽  
New Taxon ◽  
Mitochondrial Coi ◽  
The Indian Ocean ◽  
Anterior Segments ◽  
A New Species

A new species and the first confirmed record of a true pygmy seahorse from Africa, Hippocampus nalusp. nov., is herein described on the basis of two specimens, 18.9–22 mm SL, collected from flat sandy coral reef at 14–17 meters depth from Sodwana Bay, South Africa. The new taxon shares morphological synapomorphies with the previously described central Indo-Pacific pygmy seahorses, H. colemani, H. japapigu, H. pontohi, and H. satomiae, and H. waleananus, including diminutive size, twelve trunk rings, prominent cleithral ring and supracleithrum, spines on the fifth and twelfth superior and lateral trunk ridges, respectively, and prominent wing-like protrusions present on the first and/or second superior trunk rings posterior to the head. Hippocampus nalusp. nov. is primarily distinguished from its pygmy seahorse congeners by highly distinct spine morphology along the anterior segments of the superior trunk ridge. Comparative molecular analysis reveals that the new species demonstrates significant genetic divergence in the mitochondrial COI gene from the morphologically similar H. japapigu and H. pontohi (estimated uncorrected p-distances of 16.3% and 15.2%, respectively). Hippocampus nalusp. nov. represents the eighth member of the pygmy seahorse clade to be described from the Indo-Pacific, the first confirmed record from the African continent and the Indian Ocean, and an extension of more than 8000 km beyond the previously known range of pygmy seahorses from the Central and Western Indo-Pacific.

scholarly journals A new species of the genus Smacigastes Ivanenko & Defaye, 2004 (Tegastidae, Harpacticoida, Copepoda) from the Onnuri Vent Field in the Indian Ocean

2020 ◽  
Vol 96 (2) ◽  
pp. 699-714
Author(s):  
Jong Guk Kim ◽  
Jimin Lee
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Hydrothermal Vent ◽  
Hydrothermal Vents ◽  
First Record ◽  
Cold Seeps ◽  
Dichotomous Key ◽  
The Family ◽  
The Indian Ocean ◽  
A New Species

The genus Smacigastes Ivanenko & Defaye, 2004 (Harpacticoida, Copepoda) is the most primitive genus in the family Tegastidae Sars, 1904, occurring in deep-sea chemosynthetic environments, such as hydrothermal vents, cold seeps, whale falls and wood falls. Our exploration of the Onnuri Vent Field, the sixth active hydrothermal vent system in the Central Indian Ridge, resulted in the discovery of a new species in the genus Smacigastes. A detailed morphological analysis of S. pumilasp. nov. reveals that it most resembles S. barti Gollner, Ivanenko & Martínez Arbizu, 2008, described from a hydrothermal vent in the East Pacific Ridge; the new species can be distinguished from the existing species by the 8-segmented female antennule, the absence of an abexopodal seta on the antennary basis, the mandibular exopod represented by a single seta and the exopod of the first leg with five setae. This is the first record of Smacigastes in the Indian Ocean. A dichotomous key to species of the genus Smacigastes worldwide is provided.

First record of Hyalascus (Hexactinellida: Rossellidae) from the Indian Ocean, with description of a new species from a volcanic seamount in the Andaman Sea

Zootaxa ◽  
2010 ◽  
Vol 2667 (1) ◽  
pp. 64 ◽  
Author(s):  
SABYASACHI SAUTYA ◽  
KONSTANTIN R. TABACHNICK ◽  
BABAN INGOLE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Indian Ocean ◽  
First Record ◽  
Andaman Sea ◽  
The Pacific ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
Back Arc ◽  
A New Species

A new species of Hyalascus is described from the submarine volcanic crater seamount of Andaman Back-arc Basin, Indian Ocean. The genus was previously known in the Pacific Ocean only.

scholarly journals Stigmatopora harastii, a new species of pipefish in facultative associations with finger sponges and red algae from New South Wales, Australia (Teleostei, Syngnathidae)

ZooKeys ◽  
2020 ◽  
Vol 994 ◽  
pp. 105-123
Author(s):  
Graham Short ◽  
Andrew Trevor-Jones
Keyword(s):  
New Species ◽  
Red Algae ◽  
New South ◽  
New South Wales ◽  
Coi Gene ◽  
New Taxon ◽  
Mitochondrial Coi ◽  
South Wales ◽  
Anterior Trunk ◽  
A New Species

A new species of pipefish, Stigmatopora harastiisp. nov., is described based on the male holotype and two female paratypes, 136.3–145.5 mm SL, collected from red algae (sp.?) at 12 meters depth in Botany Bay, New South Wales (NSW), Australia. The new taxon shares morphological synapomorphies with the previously described members of Stigmatopora, including principle body ridges, fin placement, slender tail, and absence of a caudal fin. It is morphologically and meristically similar to Stigmatopora nigra, including snout length and shape, dorsal-fin origin on 6th–7th trunk ring, and lateral trunk ridge terminating on the first tail ring. Stigmatopora harastiisp. nov. is distinguished from its congeners, however, by characters of the head and first trunk ring, distinct sexual dimorphic markings on sides and venter of anterior trunk rings, and red background coloration in life. The new taxon can be further differentiated by genetic divergence in the mitochondrial COI gene (uncorrected p-distances of 9.8%, 10.1%, 10.7%, and 14.6%, from S. argus, S. macropterygia, S. narinosa, and S. nigra, respectively). The type locality is characterised by semi-exposed deep-water sandy areas interspersed with boulders, flat reefs, and an absence of seagrass beds, in which S. harastii has been observed living in facultative associations with a finger sponge and red algae at depths of 10–25 meters, compared to the shallow coastal and estuarine habitats preferred by the fucoid algae and seagrass-associating members of Stigmatopora. Stigmatopora harastiisp. nov. represents the fourth species of Stigmatopora recorded in temperate southern Australia.

Acanthotetilla celebensis sp. nov., a new species from North Sulawesi, Indonesia (Porifera: Demospongiae: Spirophorida: Tetillidae)

Zootaxa ◽  
2007 ◽  
Vol 1397 (1) ◽  
pp. 25 ◽  
Author(s):  
NICOLE J. DE VOOGD ◽  
ROB W. M. VAN SOEST
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
West Indies ◽  
First Record ◽  
The West ◽  
North Sulawesi ◽  
The Indian Ocean ◽  
A New Species

A new megacanthoxea- bearing tetillid Acanthotetilla celebensis sp.nov. (Porifera: Demospongiae: Spirophorida: Tetillidae) is described from North Sulawesi, Indonesia. The new species is compared with all other (four) Acanthotetilla species occurring in the Indian Ocean and the West Indies. The new species differs from these other species by the overall morphology, and especially the presence of two sizes of megacanthoxeas. This is the first record of Acanthotetilla in Indonesia.

Cymbastela sodwaniensis sp. nov. (Halichondrida: Axinellidae): a first record of this sponge genus in South Africa

2009 ◽  
Vol 89 (8) ◽  
pp. 1679-1687
Author(s):  
Toufiek Samaai ◽  
Ruwen Pillay ◽  
Michelle Kelly
Keyword(s):  
South Africa ◽  
New Species ◽  
Indian Ocean ◽  
Southern Africa ◽  
East Coast ◽  
First Record ◽  
North East ◽  
The North ◽  
The Indian Ocean

Cymbastela sodwaniensis sp. nov. (order Halichondrida: family Axinellidae) is described from the subtropical waters of Sodwana Bay on the north-east coast of South Africa. The genus was previously unknown from southern Africa or the western and eastern parts of the Indian Ocean. This record represents the westernmost extent of this predominantly Indo-Pacific to Australasian genus. This new species record brings the number of Cymbastela species described to a total of nine.

scholarly journals Diplacodes lefebvrii in Sardinia, a new species for the Italian fauna (Odonata: Libellulidae)

2014 ◽  
Vol 46 (1-2) ◽  
pp. 121 ◽  
Author(s):  
Andrea Rattu ◽  
Piero Leo ◽  
Raynald Moratin ◽  
Sönke Hardersen
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Sex Ratio ◽  
Iberian Peninsula ◽  
First Record ◽  
The South ◽  
Single Male ◽  
The Indian Ocean ◽  
Small Wetland ◽  
A New Species

<em>Diplacodes lefebvrii</em> (Rambur, 1842) is a libellulid dragonfly, which is common and widespread in Africa and across the Indian Ocean. While this species is fairly common in the south and east of the Mediterranean, its European range is confined to Cyprus, the island of Rhodes and the south of the Iberian Peninsula. Here we report the first record of <em>D. lefebvrii </em>for Italy, which was captured near Cagliari (Sardinia) on 11.IX.2013. In October 2014, a population of the same species was observed at a small wetland on the island “Isola di San Pietro” (Sardinia). Here the observed sex ratio of <em>D. lefebvrii</em> was strongly biased in favour of females and only a single male was observed.

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