Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny

Zootaxa ◽  
2020 ◽  
Vol 4816 (4) ◽  
pp. 439-456
Author(s):  
ADNAN SHAHDADI ◽  
CHRISTOPH D. SCHUBART
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Relative Length ◽  
Western Indian Ocean ◽  
Cox1 Gene ◽  
Congeneric Species ◽  
Species Pair ◽  
Two New Species ◽  
Close Relationship ◽  
De Man

Two new species of Leptarma, L. dispersum n. sp. and L. reunionense n. sp. are described from Europa Island and Réunion Island, respectively. Genetically, based on the mitochondrial COX1 gene, both species are markedly divergent from other congeneric species. Phylogenetically, L. dispersum n. sp. shows close relationship with L. lenzii (De Man, 1895) while L. reunionense n. sp. clusters with L. aurifrons (Li, Ng & Shih, 2019) and the species pair L. moluccense (De Man, 1892) and L. paucitorum (Rahayu & Ng, 2009). Morphologically, the new species differ most significantly from congeners by the relative length of the ambulatory legs and the shapes of the first gonopods and carapace. After the description of these two new species, the number of species comprised in the genus Leptarma is raised to 20, four of them being distributed in and off East Africa. 

Two new species of Trevathana (Crustacea, Cirripedia, Balanomorpha, Pyrgomatidae) from the Western Indian Ocean and French Polynesia

Zootaxa ◽  
2009 ◽  
Vol 2116 (1) ◽  
pp. 46-52 ◽  
Author(s):  
YAIR ACHITUV ◽  
YAAKOV LANGZAM
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
French Polynesia ◽  
Terra Incognita ◽  
Two New Species ◽  
The Indian Ocean ◽  
Basal Margin ◽  
Ocean Islands

Two new species of the Pyrgomatid barnacle Trevathana are described: Trevathana synthesysae nov. sp., extracted from Plesiastrea versipora from the Indian Ocean Islands Réunion and Mauritius, and Trevathana isfae nov. sp. from a colony of Favia stelligera from French Polynesia, which, until recently, was terra incognita with regard to coral-inhabiting barnacles. The two new species are distinctive by their relatively broad scutum as compared to Trevathana dentatum, their prominent adductor ridge extending beyond the basal margin of the scutum, and their quadrangular tergum.

Reports of Galathea Fabricius, 1793 (Crustacea: Decapoda: Anomura: Galatheidae) from Chinese waters, with descriptions of two new species

Zootaxa ◽  
2010 ◽  
Vol 2687 (1) ◽  
pp. 1 ◽  
Author(s):  
CHAO DONG ◽  
XINZHENG LI
Keyword(s):  
New Species ◽  
The Other ◽  
Lateral Margin ◽  
Congeneric Species ◽  
Marine Biological ◽  
Chinese Waters ◽  
Chinese Academy Of Sciences ◽  
Two New Species ◽  
De Man ◽  
Academy Of Sciences

Eighteen species of the galatheid genus Galathea Fabricius, 1793 from Chinese waters are reported in the present paper based on material in the collection of the Marine Biological Museum (MBM) in the Institute of Oceanology, Chinese Academy of Sciences, Qingdao (IOCAS), including two new species (G. babai n. sp., G. sinensis n. sp.) and eight species new to Chinese waters (G. anepipoda Baba, 1990, G. consobrina De Man, 1902, G. coralliophilus Baba & Oh, 1990, G. guttata Osawa, 2004, G. inconspicua Henderson, 1885, G. pilosa De Man, 1888, G. ternatensis De Man, 1902, and G. whiteleggii Grant & McCulloch, 1906). Galathea babai n. sp. can be distinguished from all the other congeneric species by the presence of a strong median protogastric spine. Galathea sinensis is distinguished from its nearest congener, G. multilineata, by having more numerous transverse striae on the carapace, the lateral margin of the carapace with only one instead of four spines behind the posterior cervical groove, the P1 fingers distally ending in incurved spines that cross when occluded (instead of being spooned), and a much shorter cheliped (especially the carpus length relative to breadth). To date, 26 species of Galathea Fabricius, 1793 have been recorded from Chinese waters, including the two new species.

A review of the deepwater cardinalfish genus Epigonus (Perciformes: Epigonidae) of the Western Indian Ocean, with description of two new species

Zootaxa ◽  
2018 ◽  
Vol 4382 (2) ◽  
pp. 261 ◽  
Author(s):  
MAKOTO OKAMOTO ◽  
OFER GON
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Gulf Of Aden ◽  
Gill Rakers ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Two New Species ◽  
Opercular Spine ◽  
Abdominal Vertebra

The fishes of the genus Epigonus Rafinesque, 1810 in the Western Indian Ocean (including the Red Sea and the Gulf of Aden) are reviewed. Twelve species of the genus are recognized: Epigonus angustifrons Abramov & Manilo, 1987; E. denticulatus Dieuzeide, 1950; E. elongatus Parin & Abramov, 1986; E. exodon Okamoto & Motomura, 2012; E. lenimen (Whitley, 1935); E. macrops (Brauer, 1906); E. marimonticolus Parin & Abramov, 1986; E. marisrubri Krupp, Zajonz & Khalaf, 2009; E. pectinifer Mayer, 1974; E. robustus (Barnard, 1927); E. telescopus (Risso, 1810); E. waltersensis Parin & Abramov, 1986, and two new species, E. bispinosus n. sp. and E. idai n. sp. Epigonus bispinosus and E. idai belong to the E. constanciae group, defined as having a pungent opercular spine, more than 45 pored lateral-line scales, and lacking an isolated dorsal fin spine between the first- and second dorsal fins. Epigonus bispinosus differs from other members of the group in having two small spines on the symphysis of lower jaw, a pair of ribs on the last abdominal vertebra, 10 + 15 vertebrae, 31–33 gill rakers and lacking a maxillary mustache-like process. Epigonus idai differs from other members of the group in having a pair of ribs on the last abdominal vertebra, 4–5 tiny projections present on symphysis of lower jaw, 10 + 15 vertebrae, strongly ctenoid scales, and 28–29 gill rakers, and in lacking a maxillary mustache-like process. A key to the species, photographs, diagnoses, and distributions in the Western Indian Ocean are given. 

Two new species of Enenterum Linton, 1910 (Digenea) in the marine fish Neoscorpis lithophilus (Kyphosidae) from the south-western Indian Ocean

1978 ◽  
Vol 52 (2) ◽  
pp. 131-139 ◽  
Author(s):  
R. A. Bray
Keyword(s):  
South Africa ◽  
New Species ◽  
Indian Ocean ◽  
Oral Sucker ◽  
Body Length ◽  
Marine Fish ◽  
Western Indian Ocean ◽  
The South ◽  
Two New Species ◽  
The Status

ABSTRACTEnenterum elsti sp. nov. and E. prudhoei sp. nov. are described from the intestine of Neoscorpis lithophilus off Mapelane, Natal, South Africa. These species differ from others of the genus Enenterum in the ratio of the oral sucker to body-length and in the length of the prepharynx. E. elsti differs from. E. prudhoei in size, in sucker-ratio and in the number and configuration of the oral lobes. A key to the species of Enenterum is presented and the status of the genus briefly discussed.

Two new species of Okenia (Gastropoda: Nudibranchia: Goniodorididae) from eastern Australia and Tanzania

Zootaxa ◽  
2007 ◽  
Vol 1657 (1) ◽  
pp. 57-67 ◽  
Author(s):  
WILLIAM B. RUDMAN
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Red Sea ◽  
Body Shape ◽  
Western Indian Ocean ◽  
The Other ◽  
The Third ◽  
Australian Species ◽  
Eastern Australia ◽  
Two New Species

Two new species of the nudibranch genus Okenia Menke, 1830 (Goniodorididae) are described, one from eastern Australian waters and one from the western Indian Ocean. Okenia atkinsonorum sp. nov. is the third Australian species reported to feed on the bryozoan Pleurotoichus clathratus (Harmer, 1902) and is very similar in external shape and colour to the other two species, O. hallucigenia Rudman, 2004 and O. stellata Rudman, 2004. Okenia rhinorma sp. nov. is reported from Tanzania and the Red Sea. Its body shape and anatomy suggest it is related to the ascidian-feeding group in the genus characterised by O. aspersa (Alder & Hancock, 1845).

A new species of the swimming crab genus, Laleonectes Manning & Chace, 1990 (Crustacea: Brachyura: Portunidae), from the western Indian Ocean

Zootaxa ◽  
2017 ◽  
Vol 4323 (2) ◽  
pp. 219 ◽  
Author(s):  
JOSE CHRISTOPHER E. MENDOZA ◽  
SUVARNA S. DEVI
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Relative Length ◽  
Western Indian Ocean ◽  
Swimming Crab ◽  
The Pacific ◽  
Pacific Species ◽  
A New Species ◽  
Southwestern India

A new species of swimming crab, Laleonectes kuriya, is described from the western Indian Ocean (Réunion and southwestern India). The new species is morphologically most similar to the Pacific species, L. nipponensis (Sakai, 1938), but differs primarily in the relative length of the ambulatory legs, as well as in the shape of the malesixth pleomere and the form of the first and second male pleopods.  

New species of the genera Draconema Cobb, 1913 and Paradraconema Allen & Noffsinger, 1978 (Nematoda: Draconematidae) from the Andaman Islands, Indian Ocean, with keys to the species

Zootaxa ◽  
2012 ◽  
Vol 3575 (1) ◽  
pp. 78
Author(s):  
KENJI KITO ◽  
TAPAS CHATTERJEE
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Tail Length ◽  
Dorsal Side ◽  
Peculiar Feature ◽  
Andaman Islands ◽  
Congeneric Species ◽  
Two New Species ◽  
Males And Females

Two new species of Family Draconematidae Filipjev, 1918, Draconema andamanense sp. nov. and Paradraconemapachylumbus sp. nov., are described from the coast of the Andaman Islands, India. Both species were extracted from sed-iments among the intertidal macroalgae. Draconema andamanense resembles D. japonicum in having the gubernaculumwith peculiar distal dilation in males. However, it differs from all the congeneric species including D. japonicum by thesmaller number of subventral adhesion tubes (10–11 in male and 12–14 in female). Paradraconema pachylumbus differsfrom all the congeneric species by having the cloacal region remarkably enlarged towards the dorsal side and the conico-cylindrical tail abruptly narrowing. Paradraconema pachylumbus most resembles P. floridense with longitudinally areo-lated annules, elongate loop-shaped amphids, prominent eyespots, subventral precloacal Acan-set and gubernaculum withlateral dilation, but is distinguishable from it by the number of setae on the tail in males and females, and the gubernaculum length and tail length in males, as well as the peculiar feature of an enlarged cloacal region in males.

A new genus and two new species of congrid eels (Teleostei: Anguilliformes: Congridae) from the Indo-West Pacific, with a redescription and osteology of Chiloconger dentatus

Zootaxa ◽  
2003 ◽  
Vol 343 (1) ◽  
pp. 1 ◽  
Author(s):  
DAVID G. SMITH ◽  
EMMA S. KARMOVSKAYA
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
New Genus ◽  
Western Indian Ocean ◽  
First Record ◽  
The Philippines ◽  
Additional Material ◽  
Morphometric Characters ◽  
Posterior Nostril ◽  
Two New Species

A new genus and two new species of congrid eels, subfamily Bathymyrinae, are described from the western Indian Ocean and the western Pacific. Kenyaconger gen. nov. differs from all other congrids in having a tubular posterior nostril, opening on the edge of the upper lip behind the labial flange. Kenyaconger heemstrai sp. nov., the only species in the genus, is described from a single specimen collected off the coast of Kenya in the western Indian Ocean. Chiloconger philippinensis sp. nov. is described from the Philippines, the first record of the genus outside the eastern Pacific. It differs from Chiloconger dentatus (Garman, 1899) in several meristic and morphometric characters. Chiloconger dentatus is redescribed from additional material and its osteology is described for the first time. Chiloconger similis Wade, 1946 is reassigned to Paraconger Kanazawa.

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