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| binomial = ''Pandaka pygmaea'' |
| binomial = ''Pandaka pygmaea'' |
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| binomial_authority = [[Albert William Herre|Herre]], 1927 |
| binomial_authority = [[Albert William Herre|Herre]], 1927 |
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It measures 1.5 mm in length. |
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}} |
}} |
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[[File:Pandaka pygmaea 2013 stamp of the Philippines.jpg|thumb|''Pandaka pygmaea'' on a 2013 stamp sheet of the Philippines]] |
[[File:Pandaka pygmaea 2013 stamp of the Philippines.jpg|thumb|''Pandaka pygmaea'' on a 2013 stamp sheet of the Philippines]] |
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The '''dwarf pygmy goby''' or '''Philippine goby'''<ref>[https://web.archive.org/web/20141225210705/http://animals.pawnation.com/unique-philippine-goby-7770.html Animals]. pawnation.com</ref> (''Pandaka pygmaea'') is a [[tropical]] [[freshwater fish]] of [[family (biology)|family]] [[Gobiidae]]. It is one of the smallest fish in the world by mass, and is also one of the shortest freshwater |
The '''dwarf pygmy goby''' or '''Philippine goby'''<ref>[https://web.archive.org/web/20141225210705/http://animals.pawnation.com/unique-philippine-goby-7770.html Animals]. pawnation.com</ref> (''Pandaka pygmaea'') is a [[tropical]] [[freshwater fish]] of [[family (biology)|family]] [[Gobiidae]]. It is one of the smallest fish species in the world by mass, and is also one of the shortest freshwater fishes. Mature males can reach up to {{convert|1.1|cm|in}} [[fish measurement|SL]], while the females can grow up to {{convert|1.5|cm|in}} SL. Average weight is from {{convert|4|to|5|mg|oz}}. It is known as ''bia'' and ''tabios'' in the [[Philippines]].<ref name=Fran>[http://vivaldi.zool.gu.se/Fiskfysiologi_2001/Course_material/Introduction_fish_evolution/Panadaka_pygmaea.htm Pandaka pygmaea (Herre 1927), ''Guide to the Philippine Flora and Fauna, Band IX''], ISBN 971-10-2627-9 (undated), retrieved on: July 14, 2007</ref><ref name=Fishbase/> |
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==Distribution and habitat== |
==Distribution and habitat== |
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''P. pygmaea'' is primarily a Philippine species that was endemic in the rivers of [[Malabon]], [[Metro Manila]]. It used to frequent shady river banks in [[Rizal Province]] of [[Luzon, Philippines]]. It has also been collected in the sea at [[Culion Island]], near [[Palawan]], Philippines. It also thrives in [[brackish]] waters and [[mangrove]] areas of [[Indonesia]] and [[Singapore]] (1992). It had been imported into [[Germany]] in 1958.<ref name=Fran/><ref name= |
''P. pygmaea'' is primarily a Philippine species that was endemic in the rivers of [[Malabon]], [[Metro Manila]]. It used to frequent shady river banks in [[Rizal Province]] of [[Luzon, Philippines]]. It has also been collected in the sea at [[Culion Island]], near [[Palawan]], Philippines. It also thrives in [[brackish]] waters and [[mangrove]] areas of [[Indonesia]] and [[Singapore]] (1992). It had been imported into [[Germany]] in 1958.<ref name=Fran/><ref name=Fishbase/> |
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Dwarf pygmy gobies survive in [[demersal]], [[freshwater]], brackish and [[Marine (ocean)|marine]] water environments at a [[pH]] ranging from 7. |
Dwarf pygmy gobies survive in [[demersal]], [[freshwater]], brackish and [[Marine (ocean)|marine]] water environments at a [[pH]] ranging from 7.0–8.4, a [[water hardness|dH]] range of 30, and at tropical temperatures measuring from {{convert|24|to|30|C}}.<ref name=Fran/><ref name=Fishbase/> |
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==Appearance and anatomy== |
==Appearance and anatomy== |
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A colorless and nearly transparent species, the dwarf pygmy goby has a moderately elongated and robust body. Males are slender with nearly straight dorsal and ventral profiles, while the females appear stouter with the dorsal profile slightly curved, the belly protuberant, and the ventral outline strongly arched.<ref name=Fran/><ref name= |
A colorless and nearly transparent species, the dwarf pygmy goby has a moderately elongated and robust body. Males are slender with nearly straight dorsal and ventral profiles, while the females appear stouter with the dorsal profile slightly curved, the belly protuberant, and the ventral outline strongly arched.<ref name=Fran/><ref name=Fishbase/> |
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The head of the ''P. pygmaea'' is large and blunt. The head and nape are naked. The upper and lower profiles converge and are pointed if viewed from the sides. The head is characteristically broader than deep. The head is very short, broad and rounded. The mouth is very oblique, with a projecting lower jaw and chin. The posterior angle of the maxillary extends beneath the anterior part of the eye, up to the middle of pupil. It possesses two rows of teeth in each jaw. The outer row of teeth inside the upper jaw is larger and more widely spaced, while the inner row is characteristically minute. The first dorsal fin is low, much in advance of the second dorsal fin but not reaching the second dorsal fin when depressed. The pectoral and ventral fins are pointed, with the latter about as long as the former or longer. The anal papilla is very short and rounded in females, but is longer and very slender in males.<ref name=Fran/><ref name= |
The head of the ''P. pygmaea'' is large and blunt. The head and nape are naked. The upper and lower profiles converge and are pointed if viewed from the sides. The head is characteristically broader than deep. The head is very short, broad and rounded. The mouth is very oblique, with a projecting lower jaw and chin. The posterior angle of the maxillary extends beneath the anterior part of the eye, up to the middle of pupil. It possesses two rows of teeth in each jaw. The outer row of teeth inside the upper jaw is larger and more widely spaced, while the inner row is characteristically minute. The first dorsal fin is low, much in advance of the second dorsal fin but not reaching the second dorsal fin when depressed. The pectoral and ventral fins are pointed, with the latter about as long as the former or longer. The anal papilla is very short and rounded in females, but is longer and very slender in males.<ref name=Fran/><ref name=Fishbase/> |
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''P. pygmaea'' have dark spots, which forms 4 cross-bands, over the sides of its body. The bases of the fins are heavily pigmented, except for the ventral fins. It has 22 to 25 scales in longitudinal series.<ref name=Fran/><ref name= |
''P. pygmaea'' have dark spots, which forms 4 cross-bands, over the sides of its body. The bases of the fins are heavily pigmented, except for the ventral fins. It has 22 to 25 scales in longitudinal series.<ref name=Fran/><ref name=Fishbase/> |
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==Ecology== |
==Ecology== |
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The species is considered vanishing or extinct in the [[Philippines]] due to [[polluted]] local [[water]]s or land reclamation projects.<ref name=Fran/><ref name= |
The species is considered vanishing or extinct in the [[Philippines]] due to [[polluted]] local [[water]]s or land reclamation projects.<ref name=Fran/><ref name=Fishbase/> |
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==Feeding== |
==Feeding== |
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This species feeds on [[plankton]].<ref name=Fran/><ref name= |
This species feeds on [[plankton]].<ref name=Fran/><ref name=Fishbase/> |
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==Reproduction== |
==Reproduction== |
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''P. pygmaea'' is an [[oviparous]] species.<ref name=Fran/><ref name= |
''P. pygmaea'' is an [[oviparous]] species.<ref name=Fran/><ref name=Fishbase/> |
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==Miscellaneous== |
==Miscellaneous== |
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==References== |
==References== |
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{{reflist|30em|refs= |
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<references/> |
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<ref name=Fishbase>{{FishBase |genus=Pandaka |species=pygmaea |month=February |year=2017}}</ref> |
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}} |
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==External links== |
==External links== |
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{{commons category|Pandaka pygmaea}} |
{{commons category|Pandaka pygmaea}} |
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{{wikispecies|Gobiidae}} |
{{wikispecies|Gobiidae}} |
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*[http://filaman.ifm-geomar.de/Biblio/BiblioSummaryList.cfm?ID=5460&GenusName=Pandaka&SpeciesName=pygmaea Biblio Summary, Filaman.ifm-Geomar.de] retrieved on: July 14, 2007 |
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*[http://research.kahaku.go.jp/zoology/Fishes_of_Libong/data/p062_04b.html Photograph and Description of Pandaka pygmaea, Herre, 1927, Dwarf pygmy goby, Pandaka pygmaea, NSMT-P 66047, 1.0 cm SL, Fishes of Libong Island, Kahaku.Go.jp], retrieved on July 14, 2007 |
*[http://research.kahaku.go.jp/zoology/Fishes_of_Libong/data/p062_04b.html Photograph and Description of Pandaka pygmaea, Herre, 1927, Dwarf pygmy goby, Pandaka pygmaea, NSMT-P 66047, 1.0 cm SL, Fishes of Libong Island, Kahaku.Go.jp], retrieved on July 14, 2007 |
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*[http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=172193 Pandaka pygmaea, Herre, 1927, Taxonomic Serial No.: 172193, ITIS.gov], retrieved on: July 14, 2007 |
*[http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=172193 Pandaka pygmaea, Herre, 1927, Taxonomic Serial No.: 172193, ITIS.gov], retrieved on: July 14, 2007 |
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[[Category:Gobionellinae]] |
[[Category:Gobionellinae]] |
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[[Category:Fish of Indonesia]] |
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[[Category:Freshwater fish of Indonesia]] |
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[[Category:Fish of the Philippines]] |
[[Category:Fish of the Philippines]] |
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[[Category:Freshwater fish of the Philippines]] |
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[[Category:Fish of Singapore]] |
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[[Category:Taxa named by Albert William Herre]] |
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[[Category:Animals described in 1927]] |
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| Dwarf pygmy goby | |
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| Scientific classification | |
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P. pygmaea
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| Binomial name | |
| Pandaka pygmaea Herre, 1927 | |
The dwarf pygmy gobyorPhilippine goby[2] (Pandaka pygmaea) is a tropical freshwater fishoffamily Gobiidae. It is one of the smallest fish species in the world by mass, and is also one of the shortest freshwater fishes. Mature males can reach up to 1.1 centimetres (0.43 in) SL, while the females can grow up to 1.5 centimetres (0.59 in) SL. Average weight is from 4 to 5 milligrams (0.00014 to 0.00018 oz). It is known as bia and tabios in the Philippines.[3][4]
P. pygmaea is primarily a Philippine species that was endemic in the rivers of Malabon, Metro Manila. It used to frequent shady river banks in Rizal ProvinceofLuzon, Philippines. It has also been collected in the sea at Culion Island, near Palawan, Philippines. It also thrives in brackish waters and mangrove areas of Indonesia and Singapore (1992). It had been imported into Germany in 1958.[3][4]
Dwarf pygmy gobies survive in demersal, freshwater, brackish and marine water environments at a pH ranging from 7.0–8.4, a dH range of 30, and at tropical temperatures measuring from 24 to 30 °C (75 to 86 °F).[3][4]
A colorless and nearly transparent species, the dwarf pygmy goby has a moderately elongated and robust body. Males are slender with nearly straight dorsal and ventral profiles, while the females appear stouter with the dorsal profile slightly curved, the belly protuberant, and the ventral outline strongly arched.[3][4]
The head of the P. pygmaea is large and blunt. The head and nape are naked. The upper and lower profiles converge and are pointed if viewed from the sides. The head is characteristically broader than deep. The head is very short, broad and rounded. The mouth is very oblique, with a projecting lower jaw and chin. The posterior angle of the maxillary extends beneath the anterior part of the eye, up to the middle of pupil. It possesses two rows of teeth in each jaw. The outer row of teeth inside the upper jaw is larger and more widely spaced, while the inner row is characteristically minute. The first dorsal fin is low, much in advance of the second dorsal fin but not reaching the second dorsal fin when depressed. The pectoral and ventral fins are pointed, with the latter about as long as the former or longer. The anal papilla is very short and rounded in females, but is longer and very slender in males.[3][4]
P. pygmaea have dark spots, which forms 4 cross-bands, over the sides of its body. The bases of the fins are heavily pigmented, except for the ventral fins. It has 22 to 25 scales in longitudinal series.[3][4]
The species is considered vanishing or extinct in the Philippines due to polluted local waters or land reclamation projects.[3][4]
This species feeds on plankton.[3][4]
P. pygmaea is an oviparous species.[3][4]
Pandaka pygmaea was once portrayed on a Philippine ten centavo coin where, uniquely for a wildlife portrayal on coinage, it is depicted at life-size. The genus name is derived from the Filipino word pandak, meaning "dwarf" or "short of stature".[5]
