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Glaridichthys falcatus Eigenmann, new species. Female.
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Gambusia infans, sp. nov.. Salamanca, Mexico
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Cyprinodon variegatus : Young fish 12 mm. in length.
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Grayback; Female (Fundulus diaphanus (Le Sueur)).
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Fundulus Heteroclitus. Common Killfish. Male.
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Cyprinodon variegatus : Egg 72 hours after fertilization.
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Heterandria formosa, female.
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Mummichoc (Fundulus heteroclitus).
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Cyprinodon variegatus : Egg with blastodisc of 8 cells.
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Top Minnow. Heterandria formosa.
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Mummichog; Male (Fundulus heteroclitus (Linnaeus)).
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Variegated Minnow. Cyprinodon variegatus.
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Zygonectes jenkinsi, sp. nov.. About three times natural size
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Mummichog (Female). Fundulus majalis (Walb.), Gthr.
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Round Minnow, Cyprinodon variegatus Lacepede. St. George Island, Maryland.
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Cyprinodon variegatus : Egg with blastoderm in late cleavage stage : PB, periblast.
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Cyprinodon variegatus : Newly hatched fish; actual length 4 mm..
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Cyprinodon variegatus : Egg with blastodisc of 8 cells, optical section.
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Cyprinodon variegatus : Egg showing later stage in differentiation of embryonic shield; EA, embryonic area; EEA, extra-embryonic area.
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Cyprinodon variegatus : Larval fish 5 days after hatching, actual length 5 mm.
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Cyprinodon variegatus : Egg with fully developed blastodisc (bd).
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Cyprinodon variegatus : Egg with blastoderm showing germ ring, GR, fully differentiated and an early stage in differentiation of embryonic shield, ES; PP, posterior pole of blastoderm.
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Viviparous Killifish (Goodea iuitpoldi).
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Goodea luitpoldi (Steindachner). A viviparous fish from Lake Patzcuaro, Mexico. Family Paciliidae.
