Data/hora: 10/06/2024 13:30:30

Provedor de dados: | Revista Chilena de Historia Natural
País: | Chile
Título: | Inferring the developmental basis of the sea star abnormality "double ambulacral groove" (Echinodermata: Asteroidea)
Autores: | HOTCHKISS,FREDERICK H C.
Data: | 2000-12-01
Ano: | 2000
Palavras-chave: | Echinodermata; Asteroidea; Regeneration; Teratology; Symmetry.
Resumo: | Very rarely a ray of a sea star is unusually wide and has two parallel ambulacral grooves that extend to a single tip. Such a ray has two terminal plates that are coalesced laterally. This abnormality is inferred to develop as a rare result of regeneration because it is recorded from a species with obligate asexual reproduction (fission and regeneration of halves; no gametes). This conclusion is supported also by an example where the abnormality affects only the distal third of a ray
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400003
Editor: | Sociedad de Biología de Chile
Formato: | text/html
Fonte: | Revista chilena de historia natural  v.73 n.4 2000