from The Century Dictionary.
- noun The typical genus of Lamnidæ, containing sharks of remarkable swiftness and ferocity. L. cornubica is the porbeagle. See cut under
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a genus of Lamnidae
Sorry, no etymologies found.
[ODONTASPIS tooth] This genus should have followed lamna; I now introduce it for the purpose of referring to odontaspis, (figs. 86 and 87,) which appear to belong to this genus rather than lamna.
[SPHENODUS RECTIDENS tooth] Tooth very long; comparatively slender; both faces convex; internal more so than the external; becoming narrower towards the edges; the base in some of the teeth trenchant, then nearly parallel two-thirds the length; enamel rather thick grooved on the inside, and cracked longitudinally on both, with a texture coarser than in the lamna; root unknown.
The teeth of this species of fish occur in the miocene associated with those belonging to the genera galeocerdo and lamna.
[LAMNA COMPRESSA tooth] Figures 73 and 74 appear to belong to the lamna.