{"id":918,"date":"2019-06-27T16:45:19","date_gmt":"2019-06-27T16:45:19","guid":{"rendered":"http:\/\/www.britishlivebearerassociation.co.uk\/site\/?p=918"},"modified":"2022-05-16T06:32:32","modified_gmt":"2022-05-16T06:32:32","slug":"xiphophorus-evelynae-rosen-1960","status":"publish","type":"post","link":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/2019\/06\/27\/xiphophorus-evelynae-rosen-1960\/","title":{"rendered":"Xiphophorus evelynae (Rosen 1960)"},"content":{"rendered":"\n

Etymology:<\/strong><\/p>\n\n\n\n

Xiphophorus:<\/em> Greek, xiphos = sword + Greek, pherein =\nto carry<\/p>\n\n\n\n

evelynae:<\/em> named after Mrs. Evelyn Gordon.<\/p>\n\n\n\n

First\ndescription:<\/strong><\/p>\n\n\n\n

Donn E. Rosen 1960.<\/p>\n\n\n\n

Middle American poeciliid fishes of the\ngenus Xiphophorus.<\/p>\n\n\n\n

Bull. Fla. St. Mus. Biol. Sci. 5 (4): 57 –\n242.<\/p>\n\n\n\n

Synonyms:<\/strong><\/p>\n\n\n\n

X.variatus\nevelynae<\/em> Rosen 1960<\/p>\n\n\n\n

Common\nname:<\/strong><\/p>\n\n\n\n

Pueblo platy<\/p>\n\n\n\n

History:<\/strong><\/p>\n\n\n\n

Collected by M. & E. Gordon on the 6th\nApril 1939.<\/p>\n\n\n\n

Originally collected by Mrs. Evelyn Gordon\nin 1939. <\/p>\n\n\n\n

First UK import is recorded in April 1979\nby Howard Preston, who met Dr. A. C. Radda in Puebla, Mexico. Radda had been\ncollecting & gave him some fish. No data is available as to the collection\nsite.<\/p>\n\n\n\n

Group:<\/strong><\/p>\n\n\n\n

Xiphophorus evelynae<\/em> <\/em>is one of the\nnorthern platys consisting of X.\nvariatus, X. <\/em>evelynae<\/em>, X. xiphidium, X. couchianus, X.\ngordoni and X. meyeri.<\/em><\/p>\n\n\n\n

Type\nLocality:<\/strong><\/p>\n\n\n\n

The confluence of the Rio’s Xanthophyll\n& Necaxa at Tepexic, Mexico.<\/p>\n\n\n\n

Distribution:<\/strong><\/p>\n\n\n\n

Restricted to a series of cataracts near\nthe village of Necaxa (also known as La Mesa). This is an area approx. 1220 metres\nabove sea level.<\/p>\n\n\n\n

Populations:<\/strong><\/p>\n\n\n\n

Rio Necaxa (Puebla State, Mexico)<\/p>\n\n\n\n

Habitat:<\/strong><\/p>\n\n\n\n

Restricted to springs and the power\ncompany\u2019s reservoirs around the village of Nexcaxa. Larger more colourful\nspecimens were found at the base of the water fall 580m below the reservoirs,\nbut were wiped out by torrential flooding caused by a hurricane. The species have\nnever returned to the waters below the waterfall, possibly because the water\nthat flowed from the reservoirs and became the waterfall are now deflected to the\npower company\u2019s hydroelectric generators. Other livebearers such as Poecillia sphenops\nand pseudoxiphophorus bimaculatus have managed to re-established colonies there.<\/p>\n\n\n\n

Size:<\/strong><\/p>\n\n\n\n

Males: 40 mm, females 50 mm.<\/p>\n\n\n\n

Distinguishing\nCharacteristics:<\/strong><\/p>\n\n\n\n

The body shape of X. evelynae<\/em> is similar to its\u2019 close relative the X. variatus.<\/em><\/p>\n\n\n\n

Colour\/Pattern\nVariability:<\/strong><\/p>\n\n\n\n

Males<\/p>\n\n\n\n

The male develops 8 to 12 thin black vertical\nbars, the body base colour ranges from a pale brown to a honey yellow. Some\nspecimens have black speckling on the flanks.<\/p>\n\n\n\n

The dorsal fin is an orange or yellow\ncolour sometimes with darker crescents mid dorsal, the pigment fades towards\nthe outside of the fin.<\/p>\n\n\n\n

The Caudal fin is an orange or yellow near\nto the caudal peduncle and fades towards to outer parts of the fin.<\/p>\n\n\n\n

All other fins are clear<\/p>\n\n\n\n

Females<\/p>\n\n\n\n

The body base colour is a pale brown\ncolour, sometimes females develop some dark speckling on the flanks.<\/p>\n\n\n\n

All fins are clear.<\/p>\n\n\n\n

Behaviour:<\/strong><\/p>\n\n\n\n

Regarded as an active but peaceful fish.<\/p>\n\n\n\n

Husbandry:<\/strong><\/p>\n\n\n\n

A Planted tank with regular water changes\nand some gentle filtration is generally all this species require. Lower\ntemperatures are appreciated<\/p>\n\n\n\n

Breeding\nNotes:<\/strong><\/p>\n\n\n\n

Regarded as an easy fish to breed, broods\nare born on a 4 weekly cycle and can number up to 50 robust fry. Parents will\ntolerate young in the tank but older females have been known to be\ncannibalistic towards them.<\/p>\n\n\n\n

Fry are known to hide at the base level of\nthe tank for the first few days.<\/p>\n\n\n\n

Can be flock bred provided there is\nsufficient plant cover and food.<\/p>\n\n\n\n

Remarks:<\/strong><\/p>\n\n\n\n

I have kept this species outside in a large\ntub throughout the summer. Prior to going outside I struggled to get these fish\nto look happy or even settled in. On collecting them from the tub after the\nsummer and returning them to their aquarium I have found that they have\npositively thrived. The numbers have increased, their size and colour have\nimproved and they themselves are happier than before. Some reports I have seen\nhave stated that this species will survive at temperatures as low as 4C, but I am\nnot sure I would recommend trying this.<\/p>\n\n\n\n

 This\nis a species you should try as your first garden tub experiment.<\/p>\n\n\n\n

References:<\/strong><\/p>\n\n\n\n

Middle\nAmerican poeciliid fishes of the genus Xiphophorus.<\/strong><\/p>\n\n\n\n

Bull.\nFla. St. Mus. Biol. Sci. 5 (4): 57 – 242.                                    Donn\nE. Rosen <\/strong><\/p>\n\n\n\n

Platies\nand swordtails                                                                      Derek\nand Pat Lambert<\/strong><\/p>\n\n\n\n

Fishbase<\/strong><\/p>\n\n\n\n

Wikipedia<\/strong>   <\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"
Young fish. Photo Tim Addis.<\/strong> <\/figcaption><\/figure><\/div>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Etymology: Xiphophorus: Greek, xiphos = sword + Greek, pherein = to carry evelynae: named after Mrs. Evelyn Gordon. First description: Donn E. Rosen 1960. Middle American poeciliid fishes of the genus Xiphophorus. Bull. Fla. St. Mus....<\/p>\n","protected":false},"author":59,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-918","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/posts\/918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/users\/59"}],"replies":[{"embeddable":true,"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/comments?post=918"}],"version-history":[{"count":2,"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/posts\/918\/revisions"}],"predecessor-version":[{"id":3909,"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/posts\/918\/revisions\/3909"}],"wp:attachment":[{"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/media?parent=918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/categories?post=918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.britishlivebearerassociation.co.uk\/site\/wp-json\/wp\/v2\/tags?post=918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}