Publications

TitleSexual dimorphism in the caudal skeleton of Cheirodon (Characidae, Teleostei)
Publication TypeJournal Article
Year of Publication1987
AuthorsArratia GF
JournalCybium
Volume11
Issue4
Pagination375-387
ISSN0399-0974
Accession NumberBacd198886035672
KeywordsChordates Fish Vertebrates General morphology Skeletal and supporting structures Skeleton Appendicular skeleton Axial skeleton Reproduction Life cycle and development Development
Abstract

There are fewer dorsal procurrent caudal rays than ventral ones in males and females of Cheirodon pisciculus, C. galusdae, C. australe and Cheirodon spp. (from Argentina and Chile). The shape of ventral procurrent caudal rays of Cheirodon is modified throughout ontogeny, and becomes a dimorphic sexual attribute separating adult females and males. The most anterior ventral procurrent caudal rays are formed by an elongate middle element bearing two lateral expanded bony processes in males, and they form a continuous series of bones, each one adjacent to the following one.

URLhttp://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ResearchSoft&SrcApp=EndNote&DestLinkType=FullRecord&DestApp=BIOABS&KeyUT=BACD198886035672

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