Morphology and life cycle ofOphryotrocha diadema, a new polychaete species from California
- 1 June 1976
- journal article
- research article
- Published by Taylor & Francis in Ophelia
- Vol. 15 (1), 23-35
- https://doi.org/10.1080/00785326.1976.10425446
Abstract
A new Ophryotrocha species is described from the harbour of Los Angeles. It has a maximum size of 4.6 mmand a maximum of 25 segments. The maxillary plates are of the Pvtype. The new species is a simultaneous hermaphrodite with segments 1 and 2 sterile, 3 and 4 male, and the remaining ones female. The chromosome number is 2n = 8. The larvae develop inside the transparent membrane of a fusiform egg case until the 4-setiger stage. They have no pygidial stylus. The reproductive rate is age dependent reaching a maximum during the fourth week of reproduction. There are two homozygotes and one heterozygote for a colour gene, all with different reproductive patterns.Keywords
This publication has 6 references indexed in Scilit:
- Reproduction and Larval Morphology of Five Ophryotrocha Species (Poly cha eta, Dorvilleidae)Zoologica Scripta, 1974
- A newOphryotrocha species (polychaeta, eunicidae) from JapanHelgoland Marine Research, 1972
- Ophryotrocha labronica as test animal for the study of marine pollutionHelgoland Marine Research, 1970
- On the biology and larval morphology of Ophryotrocha puerilis claparède & metschnikov (polychaeta)Ophelia, 1967
- Die Umwandlung des Kauapparates in Abhängigkeit vom sexuellen Zustand bei Ophryotrocha puerilis Claparède u. MetschnikoffThe Science of Nature, 1961
- Effetti di ripetute amputazioni sulle fasi sessuali di Ophryotrocha Puerilis (Clap)Bolletino di zoologia, 1951