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Larval Development of Petrolisthes granulosus (Guérin, 1835) (Decapoda: Anomura: Porcellanidae) under Laboratory Conditions

H. E. Saelzer, R. Quintana and R. Quiñones
Journal of Crustacean Biology
Vol. 6, No. 4 (Nov., 1986), pp. 804-819
Published by: Brill on behalf of The Crustacean Society
DOI: 10.2307/1548393
Stable URL: http://www.jstor.org/stable/1548393
Page Count: 16
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Larval Development of Petrolisthes granulosus (Guérin, 1835) (Decapoda: Anomura: Porcellanidae) under Laboratory Conditions
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Abstract

The larval development of the porcellanid crab Petrolisthes granulosus (Guérin, 1835) was carried out under laboratory conditions (15-16°C, 34.4S). The complete development consists of a prezoeal stage, two zoeal stages, and a megalopal stage. The megalopa appeared after 26 days. All larval stages as well as the setation of appendages are described and illustrated. The zoeae of P. granulosus have affinity with P. platymerus, an eastern North Pacific Petrolisthes, and also have affinity with P. lamarckii, an Indo-west Pacific Petrolishes, but can be distinguished from both of these species of Petrolisthes by several morphological characteristics. The larvae of P. granulosus are compared and discussed in relation to other Petrolisthes described by previous authors. /// Se lleva a cabo el desarrollo larval del porcelánido Petrolisthes granulosus (Guérin, 1835) bajo condiciones de laboratorio (15-16°C y 34.4 de salinidad). El desarrollo completo comprende un estado de prezoea, dos estados de zoeas, y un estado de megalopa. La megalopa aparece después de 26 días. Se describen e ilustran todos los estados larvales y la setación de los apéndices. P. granulosus tiene afinidad con P. platymerus, un Petrolisthes del Pacífico nor-oriental, y también tiene afinidad con P. lamarckii un Petrolisthes del Indopacífico occidental, pero se distingue de ambos por varias características morfológicas. Las larvas de P. granulosus se comparan con otros Petrolisthes descritos con anterioridad.

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