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A blind, new species of Diancistrus (Teleostei, Bythitidae) from three caves on Muna Island, southeast of Sulawesi, Indonesia
Abstract and Figures
A new species, Diancistrus typhlops (Ophidiiformes, Bythitidae), is described from six adult specimens (51-80 SL ) caught in the dark zone in three anchialine caves on Muna Island, southeast of Sulawesi. It differs from the 27 species of Diancistrus hitherto described by being eyeless and by the combination of the number of dorsal fin rays and length of head. Based on the pseudoclasper morphology, the most similar species is Diancistrus leisi Schwarzhans, Møller & Nielsen, 2005, caught in the Coral Sea and on the Great Barrier Reef. The new species differs from D. leisi by the numbers of dorsal fin rays 78-81 vs 69-73 and anal fin rays 63-65 vs 55-57, and by lacking pseudobranchial filaments vs two filaments
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... Sulawesi, terutama tentang nama sahih, nama author penemu, dan tahun publikasi, serta ditam-bahkan pula informasi museum tempat disimpannya spesimen tipe ikan asli Indonesia tersebut. (1935a b, 1938), Ahl (1936), Bleeker 1860, Boulenger 1897, Brembach (1982, 1991, Collete (1995) Huylebrouck et al. (2012Huylebrouck et al. ( , 2014, Kottelat (1990Kottelat ( a b c, 1991, Ladiges (1972), Larson (2001), Larson & Kottelat (1992), Larson et al. 2014, Meisner & Louie (2000, Mokodongan et al. (2014Mokodongan et al. ( , 2018, Nielsen et al. (2009), Parenti (2008, Parenti & Louie (1998), Parenti & Soeroto (2004), Parenti & Hadiaty (2010), Parenti et al. (2013), Popta (1905Popta ( , 1922, van der Laan et al. (2018), Vogt (1978), Weber (1894Weber ( , 1913, dan Weber & de Beaufort (1922 Paratherina wolterecki Aurich 1935 7 ...
The freshwaters of Sulawesi are the habitat of numerous endemic Indonesian ichthyofauna that are not found anywhere else in the world. About 68 endemic fish species described from the Sulawesi’s freshwaters, it consisted of seven fami-lia of four order. The seven familia are Adrianichthyiidae (19 spesies, two genera), Telmatherinidae (16 spesies four gen), Zenarchopteridae (15 spesies, three gen), Gobiidae (14 spesies., empat gen), Anguillidae (one spesies, one gen), Eleotridae (two spesies, two gen), Terapontidae (one spesies, one gen). Most of the Sulawesi’s endemic ichthyofauna inhabit in lakes (45 spp., about 66.2%), 23 spp. lives in the rivers. The Sulawesi’s first species was Glossogobius cele-bius described by Valenciennes in 1837, the type spesimen deposited in Paris Museum. Eight species described in 19 century, up to the year of Indonesian independence 29 spesies described, after that 39 spesies of endemic ichthyofauna described from Sulawesi’ freshwater. The earlier description the type specimen deposited in the foreign museums, but in 1990 Dr. Maurice Kottelat pioneered to deposited the type specimen in Museum Zoologicum Bogoriense (MZB), Zoologi Division of Research Center for Biology. So far, the type specimens of Sulawesi freshwater ichthyofauna deposited in 27 museums of 11 countries in the world, the most museums were in United Stated of America (8 mu-seums), Germany (6 museums), Schwitzerland (3 museums), Australia and Netherlands (2 museums), while the others (Austria, Japan, Singapore, United Kingdom and Indonesia) each country with one museums respectively.AbstrakPerairan tawar Pulau Sulawesi merupakan habitat beragam iktiofauna endemik Indonesia yang tidak dijumpai di bagian manapun di dunia ini. Dari perairan tawar pulau ini telah dideskripsi 68 spesies ikan endemik dari tujuh familia, tergo-long dalam empat ordo. Ke tujuh familia tersebut adalah Adrianichthyiidae (19 spesies, dua genera), Telmatherinidae (16 spesies, empat genera), Zenarchopteridae (15 spesies, tiga genera), Gobiidae (14 spesies, empat genera), Anguilli-dae (satu spesies, satu genus), Eleotridae dua spesies, dua genera), dan Terapontidae (satu spesies, satu genus). Seba-gian besar spesies endemik di P. Sulawesi hidup di perairan danau (45 spesies atau 66,2%), 23 spesies hidup di perairan sungai. Spesies pertama yang dideskripsi dari P. Sulawesi adalah Glossogobius celebius oleh Valenciennes tahun 1837, spesimen tipenya disimpan di Museum Paris. Delapan spesies ditemukan pada abad 19, sampai sebelum kemerdekaan Indonesia telah ditemukan 29 spesies, setelah merdeka ditemukan 39 spesies di P. Sulawesi. Di awal penemuan spesies baru, spesimen tipe disimpan di museum luar negeri, namun sejak tahun 1990 dipelopori oleh Dr. Maurice Kottelat spesimen tipe disimpan di Museum Zoologicum Bogoriense (MZB), Bidang Zoologi, Pusat Penelitian Biologi. Sampai saat ini spesimen tipe iktiofauna dari P. Sulawesi disimpan di 27 museum dari 11 negara di dunia, terbanyak di Ame-rika (8), Jerman (6), Swiss (3), Australia, dan Belanda (2), sedangkan di Austria, Jepang, Perancis, Singapura, Inggris, dan Indonesia masing-masing satu museum.
... Muna, P. Halmahera, P. Bali, dan Kepulauan Aru. Di beberapa pulau kecil tersebut telah dideskripsikan 10 ikan jenis baru (Allen et al. 2015a, Nielsen et al. 2009, Parenti & Hadiaty 2010, Hoese et al. 2017, Keith et al. 2012 ...
Enggano is an outer island of the archipelago country, Indonesia. A field survey of freshwater fish fauna conducted in Enggano island to get the information of the ichthyofauna of this island. The fish collected in 11 freshwaters. We got 457 fish specimens of 28 species in 11 families and three orders. One species, Stiphodon sp. suspected to be new to science and five species require further study to clarify their taxonomical status. All of the fish collected specimens deposited in 77 catalog numbers of Museum Zoologicum Bogoriense (MZB). The ichthyofauna of this island could be use as the basic data for the resource management of the Enggano island. AbstrakPulau Enggano merupakan satu pulau terluar dari negara kepulauan, Indonesia. Survei ikan air tawar dilakukan di Pulau Enggano dengan tujuan untuk mendapatkan informasi iktiofauna yang ada di pulau ini. Koleksi sampel ikan dilakukan di 11 perairan tawar. Kami memperoleh 457 spesimen dari 28 spesies yang termasuk dalam 11 famili dan 3 ordo. Satu jenis diantaranya, Stiphodon sp. diduga merupakan jenis baru dan lima jenis lainnya perlu dikaji lebih lanjut untuk mengetahui status taksonominya. Semua spesimen hasil koleksi dideposit di Museum Zoologicum Bogoriense (MZB) dalam 77 nomor MZB. Diharapkan data iktiofauna pulau ini dapat digunakan sebagai dasar pertimbangan pemerintah daerah dalam pengelolaan sumber daya P. Enggano.
... T HE order Ophidiiformes, commonly known as cuskeels, comprises a remarkably diverse group of acanthomorph fishes that includes about 111 genera and between 380 and 420 species arranged in four families primarily inhabiting the deep sea and the oceanic environment, including one of the deepest-living vertebrates, Abyssobrotula galatheae, taken at about 8400 m in the Puerto Rico Trench . Cusk-eels also include a number of species inhabiting the continental shelf, tropical reef areas, and brackish water, as well as blind species typical of freshwater caves of the Caribbean area, Galapagos Islands, and Indonesia (e.g., Nielsen et al., 2009). A highly specialized ophidiiform group, the carapid pearlfishes, are in large part inquilines within the body cavity of shallow water bivalves, starfishes, sea cucumbers, and sea squirts . ...
Cusk-eels of the order Ophidiiformes are a morphologically diverse assemblage of eel-like, elongate, posteriorly tapering percomorph fishes that occur worldwide in marine waters, from tropical reef areas to the deep sea. The about 400 extant and fossil species included in the ophidiiform clade are arranged into two main lineages, Bythitoidei and Ophidioidei, based on reproductive biology and the position of the anterior nostrils. The anatomy and phylogenetic relationships of these fishes are largely unknown, and the fossil record has not provided substantial information about the earliest phases of their evolutionary history. †Pastorius methenyi, new genus and species, the oldest member of the Ophidiiformes based on articulated skeletal remains, is described herein based on a single specimen collected from the Campanian-Maastrichtian organic-rich laminated limestone of the Liburnica Formation outcropping near the village of Trebiciano, north-eastern Italy. The comparative analysis of osteological and meristic features indicates that †Pastorius methenyi is characterized by at least one of the probable ophidiiform synapomorphies (exclusion of the supraoccipital from the posterior cranial margin by substantial posterodorsal extension of the exoccipitals) and exhibits a unique combination of characters, including a posteriorly broadly expanded maxilla; supramaxilla present; eight branchiostegals; 39 vertebrae; first neural spine shorter than those following; neural arch of first vertebra feebly connected to the first vertebral centrum though a narrow pedestal of bone; anterior abdominal vertebrae ostensibly lacking expanded ribs; caudal skeleton with ostensibly fused first preural, first ural centrum, first uroneural, and ventral hypural plate, and ostensibly fused second ural centrum and dorsal hypural plate, autogenous parhypural, and two epurals; caudal fin free, with 13 rays; a single ossified supraneural located in front of the second neural spine; and notably reduced number of dorsal- and anal-fin rays. †Pastorius is placed as the sister-group of all recent bythitoids, even if some features might indicate that it represents the sister-group of all ophidiiforms. †Pastorius provides the first unequivocal evidence that percomorphs with very elongate and compressed bodies were in existence in the Cretaceous, indicating that this group was characterized by a very high disparity and a vast diversification of bodyplans well before the Cretaceous-Paleogene extinction. © 2015 by the American Society of Ichthyologists and Herpetologists.
... Two of the newly established species come from remote islands (Christmas Island in the northeastern Indian Ocean and Rodrigues Island), one originates from the Indonesian Archipelago, and two stem from refinements in the definition of previously described species. Another blind cave-living dinematichthyine has recently been described from Sulawesi, Indonesia -Diancistrus typhlops Nielsen, Schwarzhans & Hadiaty, 2009. We postulate that particularly the Indonesian Archipelago is very likely to yield further undescribed dinematichthyine species. ...
After completion of the revision of the dinematichthyine fishes (Ophidiiformes: Bythitidae: Brosmophycinae) of the Indo-west Pacific based on more than 6500 specimens in 2008, extensive additional material was reviewed from the collections of the Western Australian Museum and the South African Institute of Aquatic Biodiversity. This material has not only led to a better definition of the species Brosmolus longicaudus but also to a recognition of the following new taxa: Didymothallus nudigena sp. nov. from northwestern Australia, Paradiancistrus christmasensis sp. nov. from Christmas Island (Indian Ocean), Nielsenichthys pullus gen. nov., sp. nov. from Nusa Penida, Indonesia, Majungaichthys agalegae sp. nov. from northern Madagascar and Agalega Islands and Mascarenichthys remotus sp. nov. from Rodrigues Island. The status of Alionematichthys sp. 2 in Møller and Schwarzhans (2008) is resolved and placed into A. crassiceps Møller and Schwarzhans, 2008, thereby extending the distribution of the species to northwestern Australia
Caves is as dark environment can act as a trap for the the cave fauna in the outside. So that the cave can trigger a process of evolution from the outside of the cave fauna to be able to adapt and survive in the caves. Thus, this reserach aimed to study the diversity of spiders that live in the caves and karst area in West Sumatra and to explore the wealth of diversity biodiversity that has not been revealed by science.Survey method was used in this reserach and spiders was collection by direct sampling in hand collection in the caves. Spiders was identified by using Identification Guide (Gerald, 2011). Four families and five species were found in this research.
Indonesia is one of the biggest archipelago country in the world, These islands lined up, stretching from Sabang to Merauke. Some government institutions studied the number of islands in Indonesia. In March 2nd 2017 President of Republic Indonesia issued Keppres No. 6 2017 about 111 numbers of outer islands. Two of the islands belongs to Bengkulu Province, i.e Enggano and Mega islands. Stretching in an east-west direction embracing nearly 18,000 islands, the Indonesian Archipelago features a seemingly endless array of marine habitats. The country is the global leader with regards to area occupied by coral reef, estimated at 51,090 km2. The total number of coral reef fishes around 2600 species. The highest diversity of coral reef fishes with about 1766 species is Papua Barat. The dominant family is Gobiidae with 405 species, Labridae about 200 species and Pomacentridae with about 176 species. The islands in Indonesia have a unique history and inhabit by numbers of endemic fish species, i.e Muna island, Aru islands, and Enggano island. LIPI conducted an expedition in Enggano in 2015, the result indicated some undescribed species there. The new species found in Indonesia since a long time ago, started on 16 century up to now. The research on freshwater fish in Indonesia found 66 new fish species. Until now there are still a lot of unexplore waters in Indonesia, and there are still awaiting undescribe fish species to be named. Fish conservation in the small islands need to be done, as most of them migrate to the sea. Some aphidromous species growth and reproduction in freshwaters but the juvenile migrate downstream towards the sea, spreading at sea, metamorphosis phase they enter upstream migration and settlement in the freshwater.AbstrakIndonesia merupakan negara kepulauan yang terbesar di dunia, pulau-pulau ini berjajar, membentang dari Sabang sampai Merauke. Kajian jumlah pulau di Indonesia telah diteliti oleh beberapa lembaga di negeri ini. Sebagai negara kepulauan, Indonesia seolah-olah merupakan habitat laut yang tak berujung. Terumbu karang negeri ini sekitar 51.090 km2 merupakan yang terluas di dunia. Jumlah total spesies ikan di perairan terumbu karang Indonesia sekitar 2600 spesies. Wilayah tertinggi keragaman jenisnya adalah perairan Papua Barat dengan 1766 spesies. Famili yang terbesar adalah Gobiidae 405 spesies, selanjutnya Labridae 200 species dan Pomacentridae 176 spesies. Banyak pulau mempunyai riwayat unik dan dihuni oleh spesies-spesies endemik, diantaranya Pulau Muna, Pulau di Kepulauan Aru, juga Pulau Enggano. Hasil penelitian LIPI di P. Enggano mengindikasikan adanya beberapa jenis baru ikan. Penemuan spesies baru telah berlangsung lama, sejak penelitian iktiofauna di Indonesia dimulai pada abad 16 sampai saat ini. Hasil penelitian ikan air tawar di perairan Indonesia telah mendapatkan 66 spesies baru, sampai saat ini masih banyak wilayah perairan belum diteliti dan kemungkinan besar ada spesies baru yang menanti diungkap keberadaannya. Konservasi spesies ikan di pulau-pulau kecil perlu dilakukan, mengingat banyak diantara-nya yang beruaya ke laut. Beberapa spesies gobiid bersifat amfidromus, memijah dan menetas di perairan tawar namun anakannya bermigrasi ke laut, mengalami metamorphosis dan kembali lagi ke perairan tawar.
A revision of the dinematichthyine fishes (Ophidiiformes: Bythitidae: Brosmophycinae) of the Indo-West Pacific based on more than 6500 specimens is published in several parts. Part IV is the last part and includes 4719 identified specimens in the genera Alionematichthys (new genus with three described and eight new species), Dinematichthys Bleeker, 1855 (with one described and one new species) and Porocephalichthys (new genus with one described species). A neotype of Dinematichthys iluocoeteoides Bleeker, 1855 is here designated. The genera reviewed here have in common a high anterior nostril and are considered to be related to each other. When previously described, they were all included in the genus Dinematichthys. The separating characters of the species are the pseudoclasper morphology, morphometric characters, vertebrae and fin ray counts, otolith morphology, head squamation, presence or absence of the upper preopercular pore and development of cirri on the snout.
An ongoing revision of the dinematichthyine fishes (Ophidiiformes, Bythitidae, Brosmophycinae) of the Indo-West Pacific based on ca. 5000 specimens will be published in parts. Part I includes 765 identified specimens in the genera Brotulinella (new genus with one new species), Diancistrus Ogilby, 1899 (with four described and 23 new species) and Paradiancistrus (new genus with two new species). The main distinguishing character in this group of presumably related genera is the male pseudoclasper pattern. Brotulinella is further characterized by the slender form and the generally higher number of precaudal vertebrae (12 versus 11 in the two other genera, except for one species with 12 in Diancistrus). Paradiancistrus is unique amongst Indo-West Pacific dinematichthyine genera in having only one instead of three lower preopercular pores. Brotulina Fowler, 1946, Calcarbrotula Fowler, 1946 and Parabrosmolus Machida, 1996, are regarded as junior synonyms of Diancistrus. The separating characters of the species are male pseudoclaspers, head squamation, head pores, otoliths, morphometric proportions, and fin ray and vertebral counts. Diancistrus, which has remained monotypic for more than 100 years, is here shown to be one of the most diverse genera of tropical reef fishes. The many unrecognised species have previously been confused with other genera such as Dinematichthys and Ogilbia. Pseudoclasper morphology is used to define three informal species groups in the genus Diancistrus.
Catalog of fishes. Special publication No. 1 of the center for Biodiversity and information
eschMeyer W.N., 1998. -Catalog of fishes. Special publication
No. 1 of the center for Biodiversity and information. Calif.
Acad. Sci., 1-3: 1-2905.
-review of the american dinematichthyini (teleostei: Bythitidae). Part 1. Dinematichthys, Gunterichthys, Typhliasina and two new genera
- P R Møller
- W Schwarzhans
- J G Nielsen
MØller P.r., schWarzhaNs W. & NielseN J.G., 2004. -review of the american dinematichthyini (teleostei: Bythitidae). Part 1. Dinematichthys, Gunterichthys, Typhliasina and
two new genera. Aqua, 8(4): 141-192.
Accepté pour publication le 17 septembre
- Reçu Le
Reçu le 18 mai 2009.
Accepté pour publication le 17 septembre 2009.