Mechanisms of Development (2004) 639 - 645
Review: A comparative view on sex determination in medaka
By Manfred Schartl

Journal of morphology, Structure and function of placental exchange surfaces in goodeid fishes, published 2015
By Joachim f. Schindler

Superfetation in livebearers
Poecilia nieuws, May edition 2020
By Stan de Jong

Inheritance of fin characters in the guppy (lebistes reticulatus Peters)

By J.H. Schröder

Swordtail guppies

By Alan S. Bias

First record of non-native Sailfin molly Poecilia latipinna (Lesueur 1821) (Cyprinodontiformes: Poeciliidae) in Africa (Lake Manzala, Egypt)

By Mohamed Abu El-Regal

An Ovary of the Live-Bearing Placental Fish, Poeciliopsis prolifica

UNIVERSITY OF CALIFORNIA - RIVERSIDE

Differential regulation of MSX genes in the development of the gonopodium, an intromittent organ, and of the “sword”, a sexually selected trait of swordtail fishes (Xiphophorus)

By Hans Zauner, Gerrit Begemann, Manuel Marí-Beffa and Axel Meyer.

A Sex-Linked Gene Controlling the Onset of Sexual Maturity in Female and Male Platyfish (XIPHOPHORUS MACULATUS), Fecundity in Females and Adult Size in Males

By K.D. Kallman, V. Borkoski

Epigenetic inheritance of DNA methylation changes in fish living in hydrogen sulfide–rich springs

By Joanna L. Kelley, Michael Tobler, Daniel Beck and Michael K. Skinner

The Scientist, Infographic: Two Guppy Brain Regions May Help Them Learn Tasks

By Julia Moore, Natalia Mesa

Neuroscience, Small Brained Female Guppies Are Not Drawn to Attractive Males

By Chris Lane

How does complex life evolve? The co-evolution of maternal immune tolerance and placentas in live-bearing fish

By Marwa Ahmed, Geert F. Wiegertjes and Bart Pollux

The Biology of Polymorphic Melanic Side-Spotting Patterns in Poeciliid Fishes

By Tanja C. Zerulla, Philip K. Stoddard

Defining Vertical Bars in Relation to Female Preference in the Swordtail Fish Xiphophorus cortezi (Cyprinodontiformes, Poeciliidae)

By Molly Morris, Jason Elias and Jason Moretz.

Tailspots of Xiphophorus and the evolution of conspicuous polymorphism                             

By R. Borowsky

Phylogenetic Analysis of the Evolution of a Signal of Aggressive intent in Northern Swordtail Fishes

By Jason Moretz and Molly Morris

The first record of the swordtail Xiphophorus hellerii Heckel, 1848 (Poeciliidae, Actinopterygii) established in the wild from Morocco

By Youness Maberouki, Abdelkhaleq Fouzi Taybi, Jamila Bahhou and Ignacio Doadrio