Definition of Hyponomic. Meaning of Hyponomic. Synonyms of Hyponomic

- S**** are depressed, irregularly annulated cyrtocones with V-shaped hyponomic sinuses, ornamented by longitudinal and transverse ridges. Position and...
- straight or slightly sigmoidal and may be expanded. Growth lines show a deep hyponomic sinus and lateral ocular sinuses. The siphuncle is subcentral with layered...
- laterally and ventrally, with a small to occluded umbilicus, broadly rounded hyponomic sinus, only slightly sinuous sutures, and a small siphuncle that is variable...
- Apertures vary from round to T-shaped, with a long narrow, ventral, hyponomic sinus for the maneuvering funnel. Siphuncles are commonly central or subcentral...
- frills, each of which is bent apically so as for form a well defined hyponomic sinus, but are without spoutlike or spinose projections. Halloceras, from...
- a black layer along the apertural margin and the accentuation of the hyponomic and ocular sinuses. The exterior body chamber lacks colour banding. The...
- breviconic s****, with an elliptical transverse aperture, without a hyponomic sinus, and a small, subventral siphuncle. The phragmocone is rapidly expanding...
- endogastrically curved orthocerids, so determined by identification of the hyponomic sinus on the concave side. The siphuncle is dorsal of the center, toward...
- a family of subcircular to compressed exogastric cyrtocones without a hyponomic sinus. Mecynoceras has a compressed, gibbous cyrtoconic s****. The venter...
- coiled juvenile portions of the Lituitidae are characterized by a deep hyponomic sinus and lateral salients at the aperture, indicating a high degree of...