The Families Rissoinidae and Rissoidae (Mollusca) from the Solanderian and Dampierian Zoogeographical Provinces

1956 ◽  
Vol 7 (3) ◽  
pp. 384 ◽  
Author(s):  
CF Laseron
Keyword(s):  
Indian Ocean ◽  
Northern Australia ◽  
Number Of Species ◽  
Christmas Island ◽  
The Indian Ocean

This paper reviews taxonomically the whole, as far as is known, of the families Rissoinidae and Rissoidae (Mollusca) from northern Australia, with the addition of a number of species from Christmas Island in the Indian Ocean. The area covered includes two zoogeographical provinces, the Solanderian and the Dampierian. All species, known or proposed as new, are figured and discussed. In all, 167 species and subspecies belonging to 47 genera are reviewed, of which 131 species and sub-species and 27 genera are proposed as new. Of these, 123 come from the Solanderian Province and 37 from the Dampierian, and 6 Peronian species are now recorded from the Solanderian. Eight species were found common to the Solanderian and Dampierian. Eighteen species are described from Christmas I.

The Family Triphoridae (Mollusca) from Northern Australia; also Triphoridae from Christmas Island (Indian Ocean)

1958 ◽  
Vol 9 (4) ◽  
pp. 569
Author(s):  
CF Laseron
Keyword(s):  
Indian Ocean ◽  
East Coast ◽  
Northern Australia ◽  
Review Of The Literature ◽  
Separate Section ◽  
Christmas Island ◽  
The Family ◽  
The Indian Ocean ◽  
Comprehensive Study

This is the first comprehensive study of the family Triphoridae (Molluscs) from northern Australia, which comprises the Solanderian and Dampierian zoogeographical provinces and, if the Queensland east coast be accepted as a separate province, the Banksian also. In all 101 species, divided into 17 genera, are figured and described, of which 91 species and 11 genera are proposed as new. In a separate section 14 species, divided into 10 genera, from Christmas Island in the Indian Ocean are described and figured, all the species and two genera being proposed as new. The Introduction includes a review of the literature and previous work, details of the proposed classification, and a key to existing genera.

scholarly journals Dacar Cas/Somali Red Aloe: a new species of Aloe (Asphodelaceae) from Somaliland

PhytoKeys ◽  
2019 ◽  
Vol 117 ◽  
pp. 85-97
Author(s):  
Mary E. Barkworth ◽  
Ahmed Ibrahim Awale ◽  
Faisal Jama Gelle
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Plant Diversity ◽  
Species Density ◽  
Number Of Species ◽  
The Indian Ocean ◽  
Eastern Highlands ◽  
A New Species

A new species of Aloe (Asphodelaceae) is described from Somaliland. It differs from other species in forming large clumps and in having sap that is initially yellow but quickly turns bright red and then dark red or reddish-brown, paniculate red-flowered inflorescences and uniformly coloured leaves with red teeth. Its recognition raises the number of species known from the combined area of Somaliland and Somalia s.s. from 31 to 36. A map portraying species density of Aloe by country, as that genus is now interpreted, shows that Aloe has its highest density on islands in the Indian Ocean but that, within Africa, the greatest density is in countries along the eastern highlands. The data also reinforce the importance of field botanists in determining a country’s known plant diversity.

Copidothrips octarticulatus recorded from Tahiti, with first description of the male and larvae (Thysanoptera, Thripidae, Panchaetothripinae)

Zootaxa ◽  
2021 ◽  
Vol 4949 (3) ◽  
pp. 591-594
Author(s):  
ARTURO GOLDARAZENA ◽  
BRUNO MICHEL ◽  
FRED JACQ
Keyword(s):  
Host Plants ◽  
New Genus ◽  
Host Record ◽  
Pacific Island ◽  
Northern Australia ◽  
New Genus And Species ◽  
Christmas Island ◽  
The Indian Ocean ◽  
Single Genus ◽  
Unknown Male

Heliothrips (Parthenothrips) octarcticulatus was originally described by Schmutz (1913) from Sri Lanka. Subsequently, Hood (1954) described from Taiwan a new genus and species Copidothrips formosus, and then Stannard and Mitri (1962) described a further new genus and species, Mesostenothrips kraussi, from Kiribati and Gibert Islands. Bhatti (1967, 1990), recognized that only a single genus and species was involved amongst these names, established the resultant synonymies, and recorded the species octarcticulatus from various localities between the Seychelles and five different Pacific Island groups. It has also been recorded from Northern Australia, and Thailand (ThripsWiki 2021) as well as Christmas Island in the Indian Ocean (Mound 2019). Despite these records, there is little reliable information about host plants and biology apart from Piper myristicum on Pohnpei island (Micronesia), and also damage caused to the leaves of Aglaonema and Spathoglottis at Darwin in Australia (Mound & Tree 2020). In this note, we add a further interesting host record and describe the previously unknown male as well as the larvae of this species. 

The common wolf snake, Lycodon aulicus capucinus, a recent colonists of Christmas Island in the Indian Ocean

1993 ◽  
Vol 20 (2) ◽  
pp. 261 ◽  
Author(s):  
TH Fritts
Keyword(s):  
Indian Ocean ◽  
Biological Information ◽  
Pest Species ◽  
Boiga Irregularis ◽  
Christmas Island ◽  
Brown Tree Snake ◽  
The Indian Ocean ◽  
The Common

The discovery of the common wolf snake, Lycodon aulicus capucinus, on Christmas I . in the Indian Ocean suggests that individuals of the species have colonised the island recently. On the basis of biological information for this widespread colubrid snake and for the brown tree snake, Boiga irregularis, a well-documented pest species on Guam, the establishment of the common wolf snake would pose a severe threat to the native fauna and ecology of Christmas I. Immediate research is needed to document the spread of the snake, to evaluate its effects on other fauna, and to control or eradicate the species before it becomes firmly established.

New Afrotropical and Oriental species of Micrepimera Matile (Diptera: Keroplatidae)

Zootaxa ◽  
2011 ◽  
Vol 3128 (1) ◽  
pp. 58
Author(s):  
JAN ŠEVČÍK ◽  
LÁSZLÓ PAPP
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
First Record ◽  
Northern Vietnam ◽  
Christmas Island ◽  
Afrotropical Region ◽  
Two New Species ◽  
The Indian Ocean ◽  
Wing Coloration

Two new species of Robsonomyiini (Diptera: Keroplatidae: Macrocerinae), Micrepimera berentiana sp. n. and M. pandastica sp. n., are described from southern Madagascar and northern Vietnam, respectively. This is the first record of this tribe in the Afrotropical region and from mainland Asia. Both the new species differ from M. punctipennis Matile (described from Christmas Island in the Indian Ocean) mainly in wing coloration, structure of antennae, and details of the male terminalia.

Ceratothoa retusa (Schiœdte & Meinert, 1883) (Isopoda, Cymothoidae), a variable species of fish parasitic marine isopod from the Indian Ocean

Crustaceana ◽  
2014 ◽  
Vol 87 (4) ◽  
pp. 448-462 ◽  
Author(s):  
Kerry A. Hadfield ◽  
Niel L. Bruce ◽  
Csaba Szinetár ◽  
Nico J. Smit
Keyword(s):  
Indian Ocean ◽  
Red Sea ◽  
Eastern Africa ◽  
Gulf Of Suez ◽  
Northern Australia ◽  
Small Head ◽  
Variable Species ◽  
The Indian Ocean ◽  
Hemiramphus Far

Ceratothoa retusa (Schiœdte & Meinert, 1883) is redescribed from the lectotype (here designated) collected from Mozambique, and the range is extended to include the Gulf of Suez in the Red Sea. Ceratothoa retusa is distinctive within the genus with a manifestly small head deeply immersed into pereonite 1, which has prominent, but variable, projecting anterolateral margins. Ceratothoa retusa has a tropical and subtropical Indian Ocean distribution, extending from eastern Africa (and now the Red Sea) eastwards to northern Australia and Indonesia. The only known hosts are the halfbeaks, Hemiramphus far (Forsskål, 1775) and H. robustus Günther, 1866 (Hemiraphidae).

Phylogeography of the Christmas Island blue crab,Discoplax celeste(Decapoda: Gecarcinidae) on Christmas Island, Indian Ocean

2012 ◽  
Vol 93 (3) ◽  
pp. 703-714 ◽  
Author(s):  
Lucy M. Turner ◽  
J. Paul Hallas ◽  
Michael J. Smith ◽  
Stephen Morris
Keyword(s):  
Indian Ocean ◽  
Habitat Destruction ◽  
Conservation Strategies ◽  
Ecosystem Change ◽  
Anthropogenic Factors ◽  
Genetic Structuring ◽  
Land Crab ◽  
Christmas Island ◽  
Number Of Factors ◽  
The Indian Ocean

The land crab,Discoplax celeste(Gecarcinidae) is endemic to Christmas Island in the Indian Ocean. Due to a freshwater-dependant life history, in which the megalopae migrate from the ocean up freshwater streams to their adult terrestrial/freshwater habitat,D. celesteinhabits only a few isolated locations on the island. This restricted distribution is one of a number of factors which has previously highlighted the vulnerability of this species to outside threats. A number of anthropogenic factors including the introduction of multiple invasive species and habitat destruction have led to drastic ecosystem change on Christmas Island. The aim of this study was to investigate whether the restricted geographical distributions ofD. celestepopulations contribute to significant genetic structuring across Christmas Island, with an objective to inform future conservation strategies for this species on Christmas Island. Fragments of the mitochondrial cytochrome oxidase I gene and the control region were sequenced from 95 individuals collected from all five locations on Christmas Island known to be inhabited byD. celeste. Analyses using analysis of molecular variance revealed no evidence of population sub-structuring, indicating that despite any geographical isolation, there is a single population ofD. celesteon Christmas Island. This lack of population differentiation is probably explained by the oceanic dispersal of larvae, rather than terrestrial migration ofD. celeste. Therefore, based on these results, for conservation purposes,D. celesteon Christmas Island can be considered a single management unit.

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