Morphological Variation of Hooded Hooks in Prionospio Japonica (polychaeta, Spionidae)
Abstract:Observations of hooded hooks of Prionospio japonica by SEM have revealed that the number of apical teeth on the main fang varies from 6 to 12 within a single adult specimen. Termed outer apical teeth, these tend to decrease in number posteriorly along the length of body, and juveniles tend to have hooded hooks with fewer numbers of apical teeth. SEM observations have revealed further the presence of 0–5, smaller, median apical teeth on hooded hooks. Median apical teeth vary in number independently from the larger apical teeth, and a total of 42 arrangements of apical teeth can be observed on a single adult specimen. These findings suggest that the arrangement of apical teeth of hooded hooks should be used with caution in the taxonomy of Spionidae.
Document Type: Research Article
Publication date: March 1, 1991
More about this publication?
- The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites