PRESENT RECORD OF SPECIES OF MUSCULIUM LINK, 1807 (BIVALVIA: SPHAERIIDAE) IN CHILE WITH NOTES ON ITS MORPHOLOGY AND BIOMETRY OF ITS POPULATIONS

dc.creatorParada Zamorano, Esperanza
dc.creatorPeredo, Santiago
dc.creatorJara-Seguel, Pedro
dc.date2009
dc.date2021-04-30T16:30:27Z
dc.date2021-04-30T16:30:27Z
dc.date.accessioned2021-06-14T22:04:49Z
dc.date.available2021-06-14T22:04:49Z
dc.identifierGAYANA,Vol.73,49-56,2009
dc.identifierhttp://repositoriodigital.uct.cl/handle/10925/2754
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3300046
dc.descriptionThis study reports the present distribution range of Musculium argentinum (D'Orbigny, 1835) and Musculium patagonicum Pilsbry, 1911 in Chile, from sampling data carried out from 2002 to 2006. Morphological and biometric characteristics of the studied populations show that M. argentinum is discontinually distributed between 38 degrees S - 41 degrees S and 71 degrees W - 72 degrees W, inhabiting fluvial and lacustrine waters. M. patagonicum was reported in a lentic environment. (51 degrees 42'S; 72 degrees 25'W). Both species are morphologically very similar. M. argentinum differs from M. patagonicum because de first has their valves more markedly cuadrangular or trapezoidal with the posterior end slightly truncated, upper dorsal extremes markedly cuadrangular, hinge plate less solid, nearly straight or weakly curved. Constant hinge length - shell length ratio. The shell outline of M. patagonicum is not as markedly trapezoidal as in M. argentinum. In the first, the posterior margin is less abrutply truncated, and the shell outline not sharp-cornered as is typical for M. argentinum. The hinge plate in M. patagonicum is always weakly curved never straight or broken as in M. argentinum. The collected material is deposited at the Zoological Collection of the Catholic University of Temuco and ill the Malacological Section of the Nacional Museum of Natural History, Chile.
dc.languagees
dc.publisherEDICIONES UNIV. CONCEPCION
dc.sourceGAYANA
dc.subjectMusculium argentinum
dc.subjectMusculium patagonicum
dc.subjectSphaeriidae
dc.subjectChile
dc.subjectgeographical distribution
dc.titlePRESENT RECORD OF SPECIES OF MUSCULIUM LINK, 1807 (BIVALVIA: SPHAERIIDAE) IN CHILE WITH NOTES ON ITS MORPHOLOGY AND BIOMETRY OF ITS POPULATIONS
dc.typeArticle


Este ítem pertenece a la siguiente institución