from The Century Dictionary and Cyclopedia
- n. The typical genus of Lamnidæ, containing sharks of remarkable swiftness and ferocity. L. cornubica is the porbeagle. See cut under mackerel-shark.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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.