Revista Chilena de Historia Natural (Sep 2002)
Larvas veliger de gastrópodos Prosobranchia provenientes de Punta de Lobos, Cuarta Región, Chile Veliger larvae of Prosobranchia gastropods from Punta de Lobos, Cuarta Región, Chile
Abstract
El presente estudio constituye un registro descriptivo e ilustrado de larvas de gastrópodos presentes a 2,8 km de la costa frente a Punta de Lobos (30° S, 71°21' O), Chile, centro-norte, en el período marzo-diciembre de 2000. Las muestras fueron recolectadas con malla de 300 µm hasta los 50 m de profundidad. Se determinaron 19 especies larvales de las cuales 13 se describen aquí. Se identificaron larvas de Turritella cingulata Sowerby, 1833, Crassilabrum crassilabrum (Sowerby, 1834), Xanthochorus cassidiformis (Blainville, 1832), Nassarius dentifer (Powys, 1835) y Salitra radwini Marincovich, 1973. Las restantes especies se asignaron a género o familia. Se entrega una caracterización morfológica mediante microscopía fotónica y electrónica de barrido y se informa la ocurrencia por número y especie de las larvas recolectadasThe present study constitutes a descriptive and illustrated record of gastropod larvae present at 2.8 km off "Punta de Lobos" (30° S, 71°21' W), north-central Chile, in the period March- December of 2000. Samples were collected with a 300 µm mesh down to 50 m of depth. The larvae of 19 species were determined, of which 13 are described here. Larvae of Turritella cingulata Sowerby, 1833, Crassilabrum crassilabrum (Sowerby, 1834), Xanthochorus cassidiformis (Blainville, 1832), Nassarius dentifer (Powys, 1835) and Salitra radwini Marincovich, 1973 were identified. The remaining species were assigned to genus or family. The larvae were characterized with the aid of light and scanning electron microscopy and we report the occurrence by number and species of collected larvae
