from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. carinate; shaped like a keel
from The Century Dictionary and Cyclopedia
- Having a keel; keeled.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having a ridge or shaped like a ridge or suggesting the keel of a ship
Sorry, no etymologies found.
Although he makes the point that the periphery is "hardly to be called keeled", to me "carinated", "angular" and "keeled" all mean more or less the same thing, especially when the degree of carination is variable.
In the southern part of Illinois there is a tendency for the shell of alternata to become carinated on the periphery, even when the spire is high.
One of the abundant species in Monocacy Natural Resources Area where I did a land snail survey was what Pilsbry1 called Anguispira alternata angulata, a keeled or carinated morph of Anguispira alternata.
Baker2 had noted that in several counties of Illinois a form of Anguispira alternata occurs which has a carinated periphery and a low spire...
Domestic finds include various scrapers, borers, beads, and pottery consisting mainly of undecorated carinated bowls.
Abdomen with the sides of the upper surface carinated.
Black and opake; the head large, quadrate, and wider than the thorax; the ocelli in a curve on the vertex; the clypeus covered with silvery pubescence, carinated in the middle, and slightly produced; the scape and basal joint of the flagellum pale yellow.
Abdomen black and shining; the first segment with some coarse striae at the apex; the second with a central forked carina and an oblique one on each side running inwards to the apex of the segment; between the carinæ are a number of deep grooves; the lateral margins of the three basal segments carinated; the third segment has a row of short deep striæ at its base; the ovipositor longer than the body.
Page view page image: and are from 13 to 17 in number. they are also veined, glossey, carinated and wrinkled; their points obliquely pointing towards the extremity of the common footstalk.
-- (Fig. 185.) Shell deeply concave on both sides; whirls, three; carinated on both sides; lip on the left extending beyond the plane of the preceding whirl.