Introduction of A-numbers for Apistogramma.
The introduction of A-numbers is justified by the ever-increasing number of species and color morphs of Apistogramma flooding aquarists, mostly sold under commercial names. The main principles for assigning a number to a particular Apistogramma are primarily its species identity and habitat range, as well as its relation to a specific complex or group.
Artificially bred color morphs of Apistogramma do not have any A-numbers. Indeed, Apistogramma enthusiasts can easily get lost in this mass of geographic and color variations of the fish, as well as the huge number of undefined species. But, on the other hand, many variations are very similar and, without knowing which river the fish was caught in, it will be very difficult to “tie” it to an A-number.
A-numbers of Apistogramma:
| A 1 – *A. taeniata* “Cupari” | A 2 – *A. cf. taeniata* “Tapajos” | A 3 – *A. cf. taeniata* “Arapiuns” |
| A 4 – *A. cf. taeniata* “Igarape Acu” | A 5 – *A. cf. taeniata* “Obidos” | A 6 – *A. cf. taeniata* “Curua–Una” |
| A 7 – *A. cf. taeniata* “Curua” | A 8 – *A. cf. taeniata* “Prainha” | A 9 – *A. cf. taeniata* “Xingu” |
| A 10 – *A. cf. taeniata* “Blauglanz” | A 12 – *A. cf. resticulosa*. Rio Madeira basin, lower Rio Mamore (Brazil) | A 13 – *A. cf. resticulosa* “Humaita”. Upper Rio Madeira basin (Brazil) |
| A 14 – *A. cf. resticulosa* “Rio Nathanael”. Rio Macangana (Brazil) | A 15 – *A. cf. resticulosa* “Aripuana”. Rio Novo Aripuana, middle course of Rio Madeira (Brazil) | A 16 – *A. cf. resticulosa* “Mamore”. Lower course of Rio Madeira (Brazil, Bolivia) |
| A 17 – *A. cf. resticulosa* “Madeira”. Lower course of Rio Madeira (Brazil) | A 18 – *A. rubrolineata* “Bolivien”. Rio Manuripi and Rio Beni basin (Bolivia) | A 19 – *A. rubrolineata* “Peru”. Rio Manuripe basin (Peru) |
| A 20 – *A. tucurui* | A 21 – *A. piauiensis*. Rio Parnaiba and Rio Itapicuru basin (Brazil) | A 26 – *A. cf. caetei* “Rio Gurupi”. Rio Caete, Para basin, tributaries Guama, Capim, Marajo (Brazil) |
| A 27 – *A. cf. caetei* “Rio Guama”. Rio Guama, lower course of Rio Capim (Brazil) | A 28 – *A. cf. caetei* “Rio Capim”. Rio Capim (Brazil) | A 29 – *A. cf. caetei* “Rio Turiacu”. Rio Turiacu (Brazil) |
| A 30 – *A. cf. caetei* “Rotwangen”. Amazon delta, Ilha de Marajo, Rio Capim rivers (Brazil) | A 31 – *A. cf. caetei* “Paraguay”. Rio Paraguay (Brazil, Paraguay) | A 33 – *A. pleurotaenia*. Rio Paraguay basin (Paraguay) |
| A 35 – *A. urteagai* | A 46 – *A. ortmanni* “Mazaruni River”. Mazarunia River (Guyana, Western Suriname) | A 47 – *A. cf. ortmanni* “Rupununi River”. Rio Cuyuni and Tumeremo reservoir (Venezuela) |
| A 48 – *A. cf. ortmanni*. (Guyana) | A 49 – *A. cf. ortmanni* “Rio Cuyuni”. Rio Cuyuni and Tumeremo reservoir (Venezuela) | A 50 – *A. gossei* “Rio Oiapoque”. Oiapoque basin (Brazil, French Guiana), Approuage, tributaries Comte and Cayenne (French Guiana). |
| A 51 – *A. cf. gossei* “Franzosisch–Guyana”. Oiapoque basin (Brazil, French Guiana), Approuage, tributaries Comte and Cayenne (French Guiana). | A 55 – *A. regani*. Middle course tributaries of Rio Negro (Brazil) | A 56 – *A. cf. regaini* “Trombetas” |
| A 58 – *A. geisleri* “Rio Curucamba” | A 59 – *A. cf. geisleri* “Smaragd” | A 60 – *A. cf. geisleri* “Parintins” |
| A 61 – *A. cf. geisleri* “Brazil”. Lower Amazon basin, Rio Curucamba (Brazil) | A 63 – *A. acrensis* | A 72 – *A. moae*. Rio Moa and Rio Jurua basin (Brazil) |
| A 73 – *A. cf. eunotus* “Rio Shahuaya” | A 74 – *A. cf. eunotus* “Santa Ana”. Rio Ucayali (Peru) | A 75 – *A. cf. eunotus* “0rangeschwanz”. Rio Ucayali and upper Amazon basin (Peru, Colombia) |
| A 76 – *A. cf. eunotus* “0rangebauch”. Rio Ucayali and upper Amazon basin (Peru, Colombia) | A 77 – *A. cf. eunotus* “Schwanzstreifen”. Rio Ucayali (Peru) | A 83 – *A. cruzi*. Rio Mazan and Rio Napo basin (Peru) |
| A 93 – *A. commbrae*. (Brazil, Bolivia, Paraguay, Argentina) | A 94 – *A. cf. commbrae* | A 95 – *A. similis* |
| A 96 – *A. inconspicua* “Bolivien”. Rio Paraguai and Rio Guapore basin (Brazil, Bolivia) | A 97 – *A. cf. inconspicua* “Brasilien”. Rio Paraguai basin (Brazil) | A 98 – *A. linkei* “Rio Itonamas”. Rio Jacapani basin in northern Bolivia |
| A 99 – *A. linkei* “Santa Cruz”. Mamore and Guapore basin (Bolivia) | A 100 – *Apistogrammoides pucallpaensis* | A 101 – *A. borellii*. Rio Parana, Rio Paraguai (Brazil), Rio Uruguay (Argentina) |
| A 102 – *A. cf. borellii* “Bolivien”. Middle and upper Rio Paraguay (Brazil, Paraguay, Argentina), Mato Grosso (Brazil, Bolivia) | A 103 – *A. cf. borellii* “Paraguay”. Middle and upper Rio Paraguay basin (Paraguay) | A 104 – *A. cf. borellii* “Rio Uruguay” |
| A 105 – *A. borellii* “Opal”. Rio Paraguay basin (Brazil, Paraguay, Argentina), Mato Grosso (Brazil, Bolivia) | A 110 – *A. hongsloi* “Rotstrich”. Orinoco basin (Colombia, Venezuela) | A 111 – *A. cf. hongsloi* “Capanaparo”. Rio Capanaparo, Rio Suapore (Venezuela) |
| A 112 – *A. cf. hongsloi* “Rio Claro”. Rio Claro (Venezuela) | A 113 – *A. cf. hongsloi* “Rio Cataniapo”. Rio Cataniapo (Venezuela) | A 114 – *A. cf. hongsloi* “Maripa”. Rio Guarrojo, Orinoco basin (Colombia) |
| A 115 – *A. cf. hongsloi* “Orange-Yellow/Gold-Orange”. Rio Claro, Rio Cinaruco (Venezuela) | A 116 – *A. hoignei* “Tinaquillo”. (Venezuela) | A 117 – *A. cf. hoignei* “Rio Arauca”. Upper Rio Arauca basin (Colombia) |
| A 118 – *A. hoignei* | A 120 – *A. macmasteri* “Wildfang gelb”. Rio Meta, Rio Guatiquia, Rio Ocoa basin (Colombia) | A 121 – *A. macmasteri* “Rotrucken”. Upper Rio Guaviare and Rio Meta basin (Colombia) |
| A 122 – *A. macmasteri* / *viejita*. Rio Meta (Colombia) | A 123 – *A. viejita*. Rio Meta, Rio Yucao basin (Colombia) | A 126 – *A. guttata*. Rio Morichal basin (Venezuela) |
| A 128 – *A. diplotaenia*. Upper and middle course of Rio Negro (Brazil) | A 129 – *A. cf. diplotaenia* “Rio Orinoco” | A 130 – *A. rupununi* “Takutu”. Tributaries of upper and middle Rio Branco and Rio Rupununi (Guyana, Brazil) |
| A 131 – *A. cf. rupununi* “Boa Vista”. Upper Rio Branco basin (Brazil) | A 132 – *A. cf. rupununi* “Rio Anaua”. Rio Anaua, middle Rio Branco tributary (Brazil) | A 133 – *A. cf. hippolytae* “Rio Trombetas”. Rio Trombetas basin (Brazil) |
| A 134 – *A. hippolytae*. Rio Tefe, Rio Manacapuru, Rio Negro basin (Brazil) | A 135 – *A. cf. hippolytae* “Tete”. Lago lake in Rio Manacapuru, Rio Solimoes basin (Brazil) | A 138 – *A. steindachneri*. Demera, Essequibo, Mahaica basin (Guyana, Suriname, Guiana) |
| A 139 – *A. cf. steindachneri* “Rio Cuyuni” | A 141 – *A. sp.* “White-seam” | A 142 – *A. inornata*. Upper and middle Orinoco tributaries (Venezuela) |
| A 143 – *A. inornata* “Guariquito”. Rio Guariquito, middle course of Rio Orinoco (Venezuela) | A 144 – *A. meinkeni*. Rio Uaupes basin (Brazil) | A 146 – *A. pertensis*. Amazon tributaries: Tefe, Negro, Arapinus, Tapajos, Curua and Trombetas (Brazil) |
| A 147 – *A. cf. pertensis* “Unterer Negro”. Lower course of Rio Negro (Brazil) | A 148 – *A. cf. pertensis* “RioTefe”. Lower course of Rio Tefe (Brazil) | A 149 – *A. cf. pertensis* “Rio Arapiuns”. Lower course of Rio Arapiuns (Brazil) |
| A 150 – *A. cf. pertensis* “Pimental”. Upper course of Rio Orinoco (Colombia) | A 151 – *A. cf. pertensis* “Orangesaum”. Upper course of Rio Orinoco (Colombia) | A 152 – *A. cf. pertensis* “Rio Trombetas”. Lower course of Rio Trombetas (Brazil) |
| A 156 – *A. uaupesi* | A 159 – *A. iniridae*. Rio Inirida basin, western Rio Orinoco (Colombia) | A 160 – *A. cf. inindae* |
| A 163 – *A. velifera* | A 168 – *A. brevis*. Rio Uaupes basin (Brazil) | A 170 – *A. arua* |
| A 171 – *A. personata*. Rio Vaupes basin (Colombia) | A 172 – *A. cf. personata*. Rio Vaupes (Colombia) | A 175 – *A. atahualpa*. Minchana lake, Nanay, Iquitos and Nauta basin (Peru) |
| A 176 – *A. cf. atahualpa* “Sunset”. Rio Nanay (Peru) | A 177 – *A. huascar*, *A. cf. atahualpa* “Schwanzzipfel”. Northwestern Peru | A 178 – *A. cf. payaminonis*. Rio Payamino, Rio Aguarico (Brazil) |
| A 179 – *A. payaminonis*. Rio Payamino, Rio Aguarico basin, southern tributaries of Rio San Miguel (Ecuador, Colombia) | A 180 – *A. nijsseni*. Rio Copal and Rio Carahuayte basin (Peru) | A 183 – *A. panduro*. Rio Ucayali basin (Peru) |
| A 184 – *A. cf. panduro*. Rio Tamshiyacu, lower Rio Ucayali basin (Peru) | A 185 – *A. cf. panduro*. Rio Ucayali (Peru, Brazil) | A 187 – *A. martmi*. Middle Rio Nanay basin (Peru) |
| A 188 – *A. baenschi*. Rio Shanushi, Rio Paranapura (Peru) | A 190 – *A. norberti*. Rio Tahuayo basin (Peru) | A 193 – *A. cf. staecki* “Guapore” |
| A 194 – *A. staecki*. Rio Mamore, Rio Guapore basin (Bolivia) | A 195 – *A. luelingi* “Rio Yacapani”. Upper course of Mamore and Madre de Dios (Peru, Bolivia) | A 196 – *A. cf. luelingi* “Puerto Maldonado”. Puerto Maldonado (Peru) |
| A 197 – *A. juruensis*. Upper Rio Jurua basin (Brazil) | A 200 – *A. cacatuoides*. Rio Ucayali basin (Peru), Rio Tefe (Brazil) | A 201 – *A. cf. cacatuoides* “Rio Jurua”. Rio Jurua (Brazil) |
| A 202 – *A. cf. cacatuoides* “Rio Putumayo”. Rio Putumayo, Rio Algodon (Peru) | A 203 – *A. cf. cacatuoides* “Manacapuru”. Rio Manacapuru (Brazil) | A 204 – *A. trifasciata* “Nordliches Pantanal” |
| A 205 – *A. cf. trifasciata* “Argentinien” | A 206 – *A. cf. trifasciata* “Rio Guapore”. Rio Guapore, Rio Paraguaym basin (Brazil, Paraguay, Bolivia) | A 207 – *A. erythrura*, *A. sp.* “Rio Mamore”. Lower course of Rio Mamore, Rio Guapore (Bolivia, Brazil) |
| A 208 – *A. elizabethae*. Uaupes and Icana rivers in the upper Rio Negro basin (Brazil). | A 209 – *A. gibbiceps*. Rio Negro basin (Brazil) | A 210 – *A. roraimae*. Rio Branco basin (Brazil) |
| A 211 – *A. bitaeniata* “Rio Nanay”. Rio Tefe (Brazil), Rio Nanay (Peru) | A 212 – *A. cf. bitaeniata* “Rio Yavari”. Rio Yavari (Brazil, Peru) | A 213 – *A. cf. bitaeniata* “Rio Tefe”. Rio Tefe (Brazil) |
| A 214 – *A. cf. bitaeniata* “Manacapuru”. Rio Manacapuru (Brazil) | A 215 – *A. cf. bitaeniata* “Brasilien”. Rio Tefe to Rio Tapajos mouth (Brazil) | A 216 – *A. cf. bitaeniata* “Porto Velho”. Rio Madeira basin (Brazil) |
| A 218 – *A. eremnopyge*. Río Pintuyacu, Río Tapiche, Itaya river basin (Peru) | A 219 – *A. paucisquamis*. Rio Negro basin (Brazil) | A 220 – *A. mendezi* “Langsstreifen”. Left tributaries of middle and upper Rio Negro basin (Brazil) |
| A 221 – *A. mendezi* “Querstreifen”. Right tributaries of middle and upper Rio Negro basin (Brazil) | A 222 – *A. mendezi* “Orange”. Rio Negro basin (Brazil) | A 224 – *A. pulchra* “Rio Candeias”. Upper reaches of Rio Madeira (Brazil) |
| A 225 – *A. cf. pulchra* “Chingarno”. Rio Madeira (Brazil) | A 231 – *A. gephyra* “Rio Negro” | A 232 – *A. cf. gephyra* “Rio Curua”. Rio Curua (Brazil) |
| A 233 – *A. cf. gephyra* “Santarem” | A 234 – *A. agasszii* “Janauaca”. Amazon, Rio Ucayali basin (Peru), Rio Tefe, Rio Japura, Rio Tapajos (Brazil) | A 235 – *A. cf. agassizii* “NetzAlenquer” |
| A 236 – *A. cf. agassizii* “Tapajos”. Lower course of Rio Tapajos (Brazil) | A 237 – *A. cf. agassizii* “Trombetas”. Lower course of Rio Trombetas (Brazil) | A 238 – *A. cf. agassizii* “Rio Purus”. Rio Purus (Brazil) |
| A 239 – *A. cf. agassizii* “Pastell, Peru”. Lower course of Rio Ucayali, Rio Tapiche (Peru) | A 240 – *A. cf. agassizii* “Madeira, gelb”. Middle and lower course of Rio Madeira (Brazil) | A 241 – *A. cf. agassizii* “Ampiyacu”. Rio Ampiyacu (Peru) |
| A 242 – *A. cf. agassizii* “Rio Maranon” | ||
| A 22 – *A. sp.* “Araguaia”. Lower basin of Rio Tocantins, Rio Araguaia (Brazil) | A 23 – *A. sp.* “Araguaia”, “Crixas”. Rio Crixas-Mirim, Araguaia basin (Brazil) | A 24 – *A. sp.* “Araguaia”, “Crixas”. Rio Araguaia (Brazil) |
| A 25 – *A. sp.* “Paru”. Rio Paru basin (Brazil) | A 32 – *A. sp.* “Macapa”. Lower Amazon, Amapa (Brazil) |
A 34 – *A. sp.* “Mosaik”. (Peru) |
| A 36 – *A. sp.* “Jabuti”. Lower Tapajos basin (Brazil) | A 39 – *A. sp.* “Peixoto”. Rio Peixoto, upper Tapajos basin (Brazil) |
|
| A 41 – *A. sp.* “Parati”. Lower Rio Xingu basin (Brazil) | A 42 – *A. sp.* “Chao”. Rio Xingu basin (Brazil) | |
| A 43 – *A. sp.* “Itaparana”. Itaparana, Purus basin (Brazil) | A 52 – *A. sp.* “Masken / Masked”. Rio Ucayali and Amazon basin (Peru) | A 54 – *A. sp.* “Rotporen”. Rio Amapa basin (Brazil) |
| A 57 – *A. sp.* “Barcelos”. Lower Rio Tocantins basin (Brazil) | A 62 – *A. sp.* “Gelbwangen”. Lower Amazon basin (Brazil) | A 65 – *A. sp.* “Jaru”. Rio Jaru, Rio Madeira basin (Brazil) |
| A 64 – *A. sp.* “Rio Candeias”. Rio Macangana basin (Brazil) | A 66 – *A. sp.* “Rio Xipamanu”. Rio Xipamanu basin (Brazil) | A 67 – *A. sp.* “Amapa”, “Rio Araguari”. Rio Araguari (Brazil) |
| A 68 – *A. sp.* “Amapa”, “Rio Amapa Grande”. Rio Amapa (Brazil) | A 69 – *A. sp.* “Amapa”, “Rio Macari”. Rio Macari (Brazil) | |
| A 70 – *A. sp.* “Amapa”, “Rio Cacipore”. Rio Cacipore (Brazil) | A 71 – *A. sp.* “Amapa”, “Rio Cacipore”. Rio Cacipore (Brazil) | A 78 – *A. sp.* “Nadelstreifen”. (Peru, Bolivia, Brazil) |
| A 81 – *A. sp.* “Orangestreifen”. (Peru) | A 82 – *A. sp.* “Nanay”. Rio Nanay basin (Peru) | A 84 – *A. sp.* “Caqueta”. Caqueta basin (Colombia) |
| A 85 – *A. sp.* “Putumayo”. Rio Algodon, Rio Putumayo basin (Peru) | A 86 – *A. sp.* “Putumayo” (Rio Ampiyacu). Rio Ampiyacu (Peru) | A 87 – *A. sp.* “Pebas” (Ampiyacu). Rio Ampiyacu basin (Peru) |
| A 88 – *A. sp.* “Pebas” (Noronha). Rio Ampiyacu basin (Peru) | A 89 – *A. sp.* “Pebas”. Rio Ampiyacu basin (Peru) | |
| A 91 – *A. sp.* “Papagei”. Rio Ampiyacu basin (Peru) | A 92 – *A. sp.* “Papagei” (Caudalfleck). Quebrada, Paucaryacu, Rio Ampiyacu basin (Peru) | A 106 – *A. alacrina*. Upper Rio Guaviare, Rio Caqueta basin (Colombia) |
| A 107 – *A. sp.* “Ortugueza”. Rio Ortegueza basin (Colombia) | A 108 – *A. sp.* “Guayas”. Rio Guayas basin (Colombia) | A 109 – *A. sp.* “Mitu”. Rio Vaupes and Rio Guainia basin (Colombia) |
| A 119 – *A. sp.* “Rio Caura”. | ||
| A 136 – *A. sp.* “Rio Preto”. Rio Preto, Rio Madeira basin (Brazil) | A 137 – *A. sp.* “Rupununi Savann”. Essequibo river and Rio Branco tributaries (Guyana) | A 140 – *A. wapisana*. Rio Branco, Rio Negro basin (Brazil) |
| A 145 – *A. angayuara*. Rio Trombetas (Brazil) | A 154 – *A. sp.* “Erdfresser / Earth-eater”. Rio Purus basin (Brazil) | A 155 – *A. sp.* “Erdfresser / Earth-eater”. Rio Purus (Brazil) |
| A 157 – *A. sp.* “Bluthkehl / Cutthroat”. Middle Orinoco, Rio Autana and Rio Atabapo tributaries (Venezuela) | A 161 – *A. sp.* “Icana”. Rio Icana, upper Rio Negro (Brazil) | A 162 – *A. sp.* “Putzer / Cleaner”. |
| A 164 – *A. sp.* “Breitbinden / Broadband”. (Venezuela) | A 165 – *A. sp.* “Breitbinden”. Upper Rio Negro (Brazil) | A 166 – *A. sp.* “Breitbinden”. Rio Negro (Brazil) |
| A 167 – *A. sp.* “Breitbinden”. (Venezuela) | A 170 – *A. arua*. Rio Arua (Brazil) | A 174 – *A. barlowi*. Rio Ampiyacu tributaries (Peru) |
| A 182 – *A. sp.* “Oregon”. Rio Nanay basin (Peru) | А 186 – *A. pantalone*. Rio Nanay tributaries (Peru) | A 189 – *A. rositae*. Rio Maranon tributaries (Peru) |
| A 191 – *A. cf. “Cruzeiro”*. Rio Jurua (Brazil) | A 192 – *A. sp.* “Doppelfleck”. Rio Negro basin (Brazil) | |
| A 217 – *A. sp.* “Orangeflossen”. Selective breeding. | A 223 – *A. sp.* “Miua”. Rio Miua, Uambe, Mabo basin, upper Rio Negro (Brazil) | A 226 – *A. cf. pulchra* “Rio Branco”, “BrancoPulchra”. Rio Madeira (Brazil) |
| A 227 – *A. sp.* “Abacaxis”. Middle course of Rio Abacaxis (Brazil) | A 230 – *A. sp.* “Blauspiegel / Blue-spangle”. Rio Xingu basin (Brazil) |
Discus fish, and everything you need to know about them. Discus and other fish.
Distribution of the genus Apistogramma into groups. Part 2. 
